Click here to visit The FieroStore | View all sponsors
  Pennock's Fiero Forum
  The Construction Zone
  Fool Everybody. Stereo looks stock, sounds great. (Page 4)

Post New Topic  Post A Reply
Email This Page to Someone! | Printable Version

This topic is 5 pages long:  1   2   3   4   5 
Previous Page | Next Page
next newest topic | next oldest topic
Fool Everybody. Stereo looks stock, sounds great. by fierosound
Started on: 04-05-2007 10:52 AM
Replies: 186 (33025 views)
Last post by: FieroJuice on 12-19-2015 09:06 PM
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post08-06-2008 03:01 PM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
Xtant 1.1i 100watt amplifier on eBay right now.

http://cgi.ebay.com/Xtant-X...QQrdZ1QQcmdZViewItem
IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post10-16-2008 09:54 AM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
Oops...

[This message has been edited by fierosound (edited 10-28-2008).]

IP: Logged
LAMBO
Member

Posts: 1677
From: Lucas, Iowa, USA
Registered: May 2000


Feedback score: (5)
Leave feedback

Rate this member

Report this Post10-16-2008 02:48 PM Click Here to See the Profile for LAMBOClick Here to Email LAMBOSend a Private Message to LAMBOEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by fierosound:

Xtant 1.1i 100watt amplifier on eBay right now.

http://cgi.ebay.com/Xtant-X...QQrdZ1QQcmdZViewItem


Is anyone a dealer for Xtant anymore? I can't find anywhere online as a source for purchasing these amps. Do they just deal with the local mom and pop dealer/installers?
IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post10-16-2008 04:12 PM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by LAMBO:

Is anyone a dealer for Xtant anymore? I can't find anywhere online as a source for purchasing these amps. Do they just deal with the local mom and pop dealer/installers?


The 1.1i is discontinued. You'll only find them on eBay. Here's a new one that didn't sell last week.
http://cgi.ebay.com/XTANT-1...QQrdZ1QQcmdZViewItem

[This message has been edited by fierosound (edited 10-16-2008).]

IP: Logged
BlackGT Codde
Member

Posts: 1107
From: Gallup, New Mexico
Registered: Mar 2008


Feedback score: N/A
Leave feedback

Rate this member

Report this Post10-16-2008 04:55 PM Click Here to See the Profile for BlackGT CoddeClick Here to Email BlackGT CoddeSend a Private Message to BlackGT CoddeEdit/Delete MessageReply w/QuoteDirect Link to This Post
love the write up and
doing this to my car as soon as i can find the time
thanx
IP: Logged
85fiero_fanat
Member

Posts: 371
From: Midland, MI
Registered: Mar 2008


Feedback score: N/A
Leave feedback

Rate this member

Report this Post10-16-2008 08:09 PM Click Here to See the Profile for 85fiero_fanatClick Here to Email 85fiero_fanatSend a Private Message to 85fiero_fanatEdit/Delete MessageReply w/QuoteDirect Link to This Post
very nice write up, but if you're using an external amp for your sub, couldn't you just adjust the filter in your amp to filter out mid to high frequencies and raise the gain causing more bass and allowing you to turn the bass down for the rest of your speakers?

I just bought some high pass filters for my headrest speakers (tsunami's that filter out everything below 100hz). I went to install them today and when I took my deck out I noticed that my sub out is hooked to the rear speaker out. I switched it over and now I can keep my rear speakers in full range and turn the built in hpf up to 50hz and everything sounds crystal clear. Now I don't need the hpf's that I bought lol.

Also, running 4ohm speakers in your headrest on an aftermarket deck is safe. Most new decks can handle 2ohms -8ohms safely per channel. It's 1 ohm and more than 8 that you have to worry about.

My setup is Pioneer DEH-P5800MP head unit, 2- Nitro 3-way 4x10 speakers in the dash (100/300 watts rms/max each), 2- AG Audio 3-1/2" 2-way speakers in each headrest (35/100 watts rms/max each), Scosche 250/550 watt two way amp bridged to a 250/750 watt 10" LA sub behind the passenger seat. Sounds amazing and I spent about $450. $200 for the deck, $75 for the amp, $35 for the sub, $115 for all of the speakers.


Again, very nice write up.
IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post10-16-2008 08:17 PM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by 85fiero_fanat:

very nice write up, but if you're using an external amp for your sub, couldn't you just adjust the filter in your amp to filter out mid to high frequencies and raise the gain causing more bass and allowing you to turn the bass down for the rest of your speakers?



The Xtant 1.1i amp is designed as a Class D full range amp. It doesn't have a built-in filter/crossover which is why I've used an external filter. I've adjusted the gain so the bass is balanced with the rest of the system. The best thing about this amp is that's it's powerful for it's size and will fit on the floor under the passenger seat without any interference.

IP: Logged
85fiero_fanat
Member

Posts: 371
From: Midland, MI
Registered: Mar 2008


Feedback score: N/A
Leave feedback

Rate this member

Report this Post10-17-2008 02:32 AM Click Here to See the Profile for 85fiero_fanatClick Here to Email 85fiero_fanatSend a Private Message to 85fiero_fanatEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by fierosound:


The Xtant 1.1i amp is designed as a Class D full range amp. It doesn't have a built-in filter/crossover which is why I've used an external filter. I've adjusted the gain so the bass is balanced with the rest of the system. The best thing about this amp is that's it's powerful for it's size and will fit on the floor under the passenger seat without any interference.


yeah, I wasn't too worried about it all looking stock anymore, so I was able to buy a more inexpensive amp. I don't have audiophile sound quality (almost impossible using stock speaker locations in the fiero), but it sounds great. I'm really satisfied with how well the cheap speakers I bought sound. They're made of high quality material, so I shouldn't have problems with them, and they sound better than some fosgates that I had in my chrysler conquest.

Did you make any sort of enclosure for the dash speakers? I've been told that every speaker should be enclosed to create great sound, I just haven't tried to tackle it yet with the dash.
IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post10-17-2008 08:38 AM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by 85fiero_fanat:

Did you make any sort of enclosure for the dash speakers? I've been told that every speaker should be enclosed to create great sound, I just haven't tried to tackle it yet with the dash.


These foam baffles work about as good as anything.
http://www.crutchfield.com/...x10+baffle&i=237XT41

There are also shallow ones available which fit the dash on the driver's side better. http://www.vertekxtc.com/

[This message has been edited by fierosound (edited 10-17-2008).]

IP: Logged
Steven Snyder
Member

Posts: 3310
From: Los Angeles, CA
Registered: Mar 2004


Feedback score: (2)
Leave feedback





Total ratings: 106
Rate this member

Report this Post10-21-2008 10:24 PM Click Here to See the Profile for Steven SnyderClick Here to visit Steven Snyder's HomePageClick Here to Email Steven SnyderSend a Private Message to Steven SnyderEdit/Delete MessageReply w/QuoteDirect Link to This Post
I just installed the Tang Band subwoofer in the factory housing (modified and filled per your directions). I'm using the factory subwoofer amp with an aftermarket head unit. It sounds AWESOME.
IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post10-21-2008 10:56 PM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Steven Snyder:

I just installed the Tang Band subwoofer in the factory housing (modified and filled per your directions). I'm using the factory subwoofer amp with an aftermarket head unit. It sounds AWESOME.



I'm glad you're more than happy with how great this sub works.

People who hear this system can't believe I'm running all the main speakers off a factory deck, and that such a small sunwoofer makes such BIG bass. Now it's NOT going to sound like your typical boom-box ricer driving down the street, but it is MORE than adequate to fill out any sound system in the Fiero.

Kudos to Bigfieroman who did the research and found this sub in the first place.
http://www.fiero.nl/forum/Forum2/HTML/076432.html
IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post10-28-2008 08:01 AM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
Finally! I started a detailed thread of my 84 project that this stereo system went into...

http://www.fiero.nl/forum/Forum2/HTML/095615.html

Wow - I see this thread on the stereo has been viewed +11,950 times!!

[This message has been edited by fierosound (edited 10-28-2008).]

IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post12-17-2008 08:53 AM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by carbon:

Did you do something to increase the impedance of the components? The info I saw said they were 2 ohm... isn't that a little rough on the head unit?


No. It seems to be OK - no problems with these. You have to remember it's running through a crossover and that impedance varies somewhat throughout the frequency range. Infinity also says that these are "safe" for factory decks, none of which would be 2ohms anyway.

While I would not personally wire 4ohm headrest speakers in parallel, which creates a 2ohm load, others have done so without problems.
IP: Logged
mattwa
Member

Posts: 7106
From: Lorain, Ohio
Registered: Sep 2008


Feedback score:    (41)
Leave feedback





Total ratings: 90
Rate this member

Report this Post12-30-2008 09:47 PM Click Here to See the Profile for mattwaClick Here to Email mattwaSend a Private Message to mattwaEdit/Delete MessageReply w/QuoteDirect Link to This Post
Does anybody have an idea as to protecting the cone on an installed Tang Band?
IP: Logged
Nilknarf
Member

Posts: 289
From: Bristol, IL, USA
Registered: Jan 2008


Feedback score:    (7)
Leave feedback

Rate this member

Report this Post01-12-2009 03:01 PM Click Here to See the Profile for NilknarfSend a Private Message to NilknarfEdit/Delete MessageReply w/QuoteDirect Link to This Post
Great write up! With this set up, can you still use the stock premium sound slider switch on the headliner?

IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post01-12-2009 04:29 PM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Nilknarf:

Great write up! With this set up, can you still use the stock premium sound slider switch on the headliner?



Thanks. I have an 84 so it didn't have a slider (premium sound wasn't available until 86?). But someone figured out a way to make the slider work with an aftermarket amp. It's covered here: http://www.fiero.nl/forum/Forum2/HTML/097104.html
IP: Logged
Oslo
Member

Posts: 5423
From: Bemidji, MN
Registered: Sep 2002


Feedback score:    (53)
Leave feedback





Total ratings: 126
Rate this member

Report this Post01-30-2009 12:13 AM Click Here to See the Profile for OsloClick Here to visit Oslo's HomePageClick Here to Email OsloSend a Private Message to OsloEdit/Delete MessageReply w/QuoteDirect Link to This Post
Also, there is documentation here to install a factory subwoofer system to an aftermarket cd player, or just a Fiero that didn't come with it.
IP: Logged
Eau_Rouge
Member

Posts: 208
From: Ontario, Canada
Registered: Jan 2007


Feedback score: N/A
Leave feedback

Rate this member

Report this Post02-25-2009 11:25 PM Click Here to See the Profile for Eau_RougeSend a Private Message to Eau_RougeEdit/Delete MessageReply w/QuoteDirect Link to This Post




[/QUOTE]


Has anyone else had any problem with their speaker plates. Made two sets out of hard board but each ended up breaking at due to the large size of the hole required for the 5.25" speaker...very thin walls.
Gonna make them out of 3/16" aluminum - should resolve the problem.
IP: Logged
Rickady88GT
Member

Posts: 8877
From: Central CA
Registered: Dec 2002


Feedback score: N/A
Leave feedback





Total ratings: 191
Rate this member

Report this Post02-26-2009 06:28 PM Click Here to See the Profile for Rickady88GTClick Here to Email Rickady88GTSend a Private Message to Rickady88GTEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by fierosound:

I've installed an updated system in my 84 project car recently. I wanted a stock look and much better sound without building an all-out system like I have in my 87 GT.

One of the first things to do is gut the interior and install soundproofing of some type. This will quiet the car from road noise and greatly improve the acoustics and efficiency of your stereo system. There's various products around like Dynamat and it's competitors and some people also use peel 'n stick roofing materials with sucess. Don't forget to cover the back of your door panels.







Where did you buy this roofing stuff? I've been to Lowe's and Home Depot and the only peel n stick stuff I could find had the granular (sand) stuff on the non stick side. It was in a roll. Thanks for help!

Rick


IP: Logged
Fierostarvin
Member

Posts: 292
From: Hazleton Iowa
Registered: Mar 2006


Feedback score: (3)
Leave feedback

Rate this member

Report this Post02-26-2009 10:27 PM Click Here to See the Profile for FierostarvinSend a Private Message to FierostarvinEdit/Delete MessageReply w/QuoteDirect Link to This Post
It looks like RESISTO is a waterproofing membrane sold in Canada
IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post02-27-2009 11:45 AM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Fierostarvin:

It looks like RESISTO is a waterproofing membrane sold in Canada


That's correct. I thought I'd give it a try because it feels that same as Dynamat I used in my GT. There should be similar products at US stores.

Some other ideas http://www.fiero.nl/forum/A...030531-1-025830.html
IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post03-02-2009 11:37 AM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
IP: Logged
mattwa
Member

Posts: 7106
From: Lorain, Ohio
Registered: Sep 2008


Feedback score:    (41)
Leave feedback





Total ratings: 90
Rate this member

Report this Post03-02-2009 05:42 PM Click Here to See the Profile for mattwaClick Here to Email mattwaSend a Private Message to mattwaEdit/Delete MessageReply w/QuoteDirect Link to This Post
Guess what i did today! I finally put in my new Tang Band sub-woofer and it sounds AWESOME!!!
IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post03-04-2009 02:20 PM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by mattwa:

Guess what i did today! I finally put in my new Tang Band sub-woofer and it sounds AWESOME!!!


It IS a pretty impressive speaker. Any details? Are you running this with stock deck and sub-woofer amp?

IP: Logged
mattwa
Member

Posts: 7106
From: Lorain, Ohio
Registered: Sep 2008


Feedback score:    (41)
Leave feedback





Total ratings: 90
Rate this member

Report this Post03-04-2009 03:20 PM Click Here to See the Profile for mattwaClick Here to Email mattwaSend a Private Message to mattwaEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by fierosound:


It IS a pretty impressive speaker. Any details? Are you running this with stock deck and sub-woofer amp?


Yea I know, that much bass from a 5 inch sub-woofer?? When I tell people i got a 5-inch sub, they are like...HAHA. I say just wait till you hear it.
I'm running a late 90's Pontiac radio, Just like the one you have in your Indy, i think, except mine has a cassette player (I didn't install it ). And yes, I'm using the stock amp, works great for my needs. My car has the Performance Option, I just swapped speakers.
You should have seen the old one. The cone was so bad, i could break it off in chips.
Oh, and i'm still using the factory 4X10s and 4X6s. Still sound good enough for me.
IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post01-15-2010 06:06 PM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
<bump>
IP: Logged
BigMike
Member

Posts: 74
From: Saginaw, Tx, USA
Registered: Jan 2010


Feedback score: N/A
Leave feedback

Rate this member

Report this Post01-15-2010 09:30 PM Click Here to See the Profile for BigMikeClick Here to visit BigMike's HomePageSend a Private Message to BigMikeEdit/Delete MessageReply w/QuoteDirect Link to This Post
Hey fierosound - you're really an inspiration, thanks for the great write-up.

Question:

My idea was to wire up b-pillar speakers in my 84, and install a high-pass crossover for the seat speakers, so only the highest ( and most directional ) pitches come from them. Either that, or I'll ditch the seat speakers all together. What's your opinion on that, and what kind of crossovers would you use? (If its not a dumb idea)
IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post01-16-2010 02:55 PM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by BigMike:

My idea was to wire up b-pillar speakers in my 84, and install a high-pass crossover for the seat speakers, so only the highest ( and most directional ) pitches come from them. Either that, or I'll ditch the seat speakers all together. What's your opinion on that, and what kind of crossovers would you use? (If its not a dumb idea)



Not sure what you're trying to accomplish. Normally, you want to your music to be FRONT sound-stage, and the rear speakers just recreate the ambiance (echoes/reflections) you'd get in a room with a live performance on a stage in FRONT of you. Some of the biggest winners in really high-end car audio accomplish this with NO rear speakers at all. Sounds like you want it to sound more "live" and the band is BEHIND you??

IP: Logged
BigMike
Member

Posts: 74
From: Saginaw, Tx, USA
Registered: Jan 2010


Feedback score: N/A
Leave feedback

Rate this member

Report this Post01-18-2010 10:23 PM Click Here to See the Profile for BigMikeClick Here to visit BigMike's HomePageSend a Private Message to BigMikeEdit/Delete MessageReply w/QuoteDirect Link to This Post
To be honest, I don't know too much about sound staging, which is one reason why I wanted your opinion. I really don't like people singing right into my ears, but I was trying to think of a way to incorporate the headrest speakers simply because of their cool factor.

I can see how it would be strange to have the majority of the sound coming from in front of you and a few high pitched noises coming from right behind you though.
IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post01-19-2010 04:57 AM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by BigMike:

I really don't like people singing right into my ears,



... and you would have made this effect much sharper. You may like the system better with pillar speakers and no headrest speakers to eliminate that "in your ear" effect.

How do they test car audio?? http://www.edmunds.com/owne.../156589/article.html

[This message has been edited by fierosound (edited 01-19-2010).]

IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post04-22-2010 04:33 PM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Ditkaphile:

....the speakers that you recommend for the headrests, I think they quit making them? Any advice there?



They are these. http://www.clearwateraudio.com/cwc3d.html

The "Fiero ones" just had the pigtail with stock type connector attached,
and of course, you didn't get the Mazda wiring harness.

[This message has been edited by fierosound (edited 04-22-2010).]

IP: Logged
crazyd
Member

Posts: 2001
From: Washington
Registered: Feb 2002


Feedback score: N/A
Leave feedback





Total ratings: 140
Rate this member

Report this Post05-14-2010 09:40 PM Click Here to See the Profile for crazydClick Here to visit crazyd's HomePageSend a Private Message to crazydEdit/Delete MessageReply w/QuoteDirect Link to This Post
Hey Fierosound, great writeup and thanks as always for sharing your vast experience with fixing the tinny audio in our beloved cars. I did want to point out that using the term "bass blockers" for a capacitor is way inaccurate for what they actually do. A capacitor only reduces the level of the AC signal at a given frequency by 6db per octave below the initial cutoff frequency, also known as a first-order crossover. It's simple and it has essentially no phase or other distortion. But it's more of a rolloff than a total block. For example, say you've got a capacitor with a 120Hz cutoff frequency. You have an input signal that's a flat 90dB across all frequencies. At 90Hz, you'll be down only 3dB at 87dB. At 60Hz, the first full octave, you'll be 6dB down at 84dB. At 45Hz, you'll be at 81dB, and at 30Hz you'll still be at 78dB. That's still a lot of bass going to those speakers.

For something closer to a block, you want the steep rolloff of 24db/octave or fourth-order, as is used in active crossovers. Fourth-order passive crossovers can be done, but they are very difficult and expensive to build.
IP: Logged
carbon
Member

Posts: 4767
From: Eagan, MN
Registered: Apr 2004


Feedback score: (2)
Leave feedback





Total ratings: 133
Rate this member

Report this Post05-26-2010 12:47 PM Click Here to See the Profile for carbonSend a Private Message to carbonEdit/Delete MessageReply w/QuoteDirect Link to This Post
On sale at Crutchfield for 59.99:

JVC KS-AX3002

65 watts RMS x 2 in stereo or
130 watts RMS x 1 in bridged mode (4-ohm stable in bridged mode)

Not discontinued or hard to find
IP: Logged
americasfuture2k
Member

Posts: 7131
From: Edmond, Oklahoma
Registered: Jan 2006


Feedback score: (3)
Leave feedback





Total ratings: 105
Rate this member

Report this Post03-03-2011 12:32 PM Click Here to See the Profile for americasfuture2kSend a Private Message to americasfuture2kEdit/Delete MessageReply w/QuoteDirect Link to This Post
just found this while looking through my latest parts express catalog...

Kicker 100W Car Audio Mono Input Sub Amp $14.80!!

[This message has been edited by americasfuture2k (edited 03-03-2011).]

IP: Logged
85silverbullet
Member

Posts: 22
From: Las Vegas
Registered: Sep 2010


Feedback score: N/A
Leave feedback

Rate this member

Report this Post03-03-2011 12:57 PM Click Here to See the Profile for 85silverbulletClick Here to Email 85silverbulletSend a Private Message to 85silverbulletEdit/Delete MessageReply w/QuoteDirect Link to This Post
keep up the good work
IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post03-29-2011 09:22 AM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by americasfuture2k:

just found this while looking through my latest parts express catalog...





Sounds like an ideal alternative to the hard-to-find Xtant 1.1i amp.

[This message has been edited by fierosound (edited 03-29-2011).]

IP: Logged
longjonsilver
Member

Posts: 709
From: Lower Sackville, Nova Scotia
Registered: Nov 2001


Feedback score: N/A
Leave feedback

Rate this member

Report this Post04-21-2011 08:49 AM Click Here to See the Profile for longjonsilverClick Here to visit longjonsilver's HomePageClick Here to Email longjonsilverSend a Private Message to longjonsilverEdit/Delete MessageReply w/QuoteDirect Link to This Post
hey fierosound: great write up. any thots on what is the most important upgrade of all that you have done here? so that i can prioritise my work schedule on my car. perhaps the front speakers?
thanks
jon
IP: Logged
fierosound
Member

Posts: 13898
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 276
Rate this member

Report this Post04-21-2011 09:28 AM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by longjonsilver:

hey fierosound: great write up. any thots on what is the most important upgrade of all that you have done here? so that i can prioritise my work schedule on my car. perhaps the front speakers?



Thank you.

If the dash & interior is out - soundproofing and subwoofer.
Other speakers and radio can be done anytime without dismantling the car.

[This message has been edited by fierosound (edited 04-21-2011).]

IP: Logged
longjonsilver
Member

Posts: 709
From: Lower Sackville, Nova Scotia
Registered: Nov 2001


Feedback score: N/A
Leave feedback

Rate this member

Report this Post04-25-2011 02:38 PM Click Here to See the Profile for longjonsilverClick Here to visit longjonsilver's HomePageClick Here to Email longjonsilverSend a Private Message to longjonsilverEdit/Delete MessageReply w/QuoteDirect Link to This Post
are these the speakers that you are talking about?
http://cgi.ebay.com/INFINIT...&hash=item53e67b725f
if not where is a good place to buy them?
jon
IP: Logged
Carcenomy
Member

Posts: 1103
From: Invercargill, New Zealand
Registered: Jan 2009


Feedback score: N/A
Leave feedback

Rate this member

Report this Post04-26-2011 08:51 AM Click Here to See the Profile for CarcenomyClick Here to visit Carcenomy's HomePageSend a Private Message to CarcenomyEdit/Delete MessageReply w/QuoteDirect Link to This Post
Hey fierosound,

Fantastic writeup and I've read it a few times now. But I must ask... do you have any suggestions for those of us who have no access to the appropriate componentry to install the factory subwoofer enclosure? Would love to give my system a little more fill, but being that there's zero parts availability here and my car's converted to RHD, there's not really any way I can do the stock enclosure. Was thinking of one of those underseat type sub/amp units, but I have my doubts about the quality of such contraptions.

------------------

IP: Logged
Previous Page | Next Page

This topic is 5 pages long:  1   2   3   4   5 
next newest topic | next oldest topic

All times are ET (US)

Post New Topic  Post A Reply
Hop to:

Contact Us | Back To Main Page

Advertizing on PFF | Fiero Parts Vendors
PFF Merchandise | Fiero Gallery | Ogre's Cave
Real-Time Chat | Fiero Related Auctions on eBay



Copyright (c) 1999, C. Pennock