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-   Series I Interior, Audio, and Electronics (https://www.rx8club.com/series-i-interior-audio-electronics-24/)
-   -   Another audio thread :) (https://www.rx8club.com/series-i-interior-audio-electronics-24/another-audio-thread-61156/)

akersjp 05-10-2005 05:11 PM

thought I should clarify, when I say I haven't heard anything for 2-3 months, I mean in previous threads I was searching through. I just pm'ed him today when it was recommended. Hopefully someone else will post so I'm not the only one posting 10 times in a row :)

forbidden 05-10-2005 05:11 PM

The last I heard of a wireless bass remote was from Soundstream, the airbass and IIRC it never made it to market here in The Great White North eh! Use the wired remote option and take the remote apart. It will mount into one of the factory knockout panels in the dash to the left lower side of the steering wheel.

TRU681 05-10-2005 05:14 PM


Originally Posted by forbidden
The new generation of class D amps have a much more advanced internal circuitry and their sound quality has drastically improved. A shining example of this is the Xtant 1.1 amplifier. Now what most people don't understand about subs is damping factor. This is the amps ability to control the motion of the driver. As impedence drops, so does the amps damping factor. A sub amp driven at 4 ohms has far better control of a sub than a amp driven at 1 ohm, by a longshot actually. Current draw on the two amps is also close to the same. Yes the Class AB will run hotter, but it is also designed to get hot. Heat is a natural byproduct of amplification. How a system is wired and fired is at the discretion of both the installer and the salesperson, sadly there are many of these people that just do not do things correctly.

Please explain or lecture about the damping factor when you have time.I would really like to learn about that.

forbidden 05-10-2005 05:16 PM

Will do, today is probably not a great day for it. What I might do is add it as a tutorial on my home forum and maybe one of the mods can link to it. I have a monster job to clear here in the next 3 days and then another RX8 on the go as well + renos to do. I am booked 2 months in advance. I'm here right now as it is my lunch break.

itsallaboutgary 05-10-2005 05:47 PM

where are you from forbidden?

forbidden 05-10-2005 06:11 PM

Courtenay, British Coumbia, on Vancouver Island. Ocean on one side and a glacier on the other. No smog, no major crime, no major traffic and no major snow and freezing temperature swings.

XeRo 05-10-2005 09:46 PM

Forbidden, is your name Brian? and would you happen to work in the States ever in the southeast, say at a stereo shop by the name of Sound Effects? You sound like my Bay 1 (high end installations/fabrications) installer that used to work very close with me and the other co-owner....

forbidden 05-10-2005 10:17 PM

No, I am Rob the owner of the shop that Brian worked at in Nanaimo, BC. I have 18 years in the industry primarily in sales, management (of course as owner of my own stores for 10 years), installer of course and all around smart a$$.

TRU681 05-10-2005 10:26 PM

1 Attachment(s)

Originally Posted by forbidden
No doubt that is a tight fit, what beast are you using to power those monsters. The Expedition that I have had here for 3 weeks has these subs in it.

Here's a picture of the Phoenix Gold titanium 1000.2, the middle one with dual fans.

forbidden 05-10-2005 10:36 PM

Big nasty bastard...... hehe. I mounted my subs in 1" clear acrylic in a mirror plexi box. I made a 1/4" powder coated steel ring and bolted the subs into place and sandwiched the acrylic inbetween. I have some pics coming soon. His subs are driven off the big nasty dual 1000 watt DA7232 Eclipse amp.

akersjp 05-11-2005 11:00 AM

So basically I'm stuck between deciding with a 10" and a 12". My friends all tell me 10" isn't enough. I would rather go with 10" so I can get 4080's box setup, but don't want to regret not getting the bigger sub. I just want to add some tight bass, doesn't have to be obnoxious. Let me know what you guys think and if anybody has gone with the 12", how is it? I can fit the 12", but it'd take up all my space. Please let me know any suggestions and or thoughts...thx again.
akersjp

XTACY 05-11-2005 11:37 AM

i am currently doing my system now and I am going with a 12. We are building a fiberglass enclosure on the rear driverside of the trunk. it will not be much larger than 4080's box. But the key is your components. we are going with a Boston G5 12. This woofer is designed for small boxes. Bass preference is completly up to you. i was in the car stereo inidustry for several years and i don't think i have ever met a customer that was satisfied with one 10

akersjp 05-11-2005 11:42 AM

XTACY,
Will your box fit with a spare tire? Thats my current problem in my trunk. Thanks.
akersjp

forbidden 05-11-2005 11:43 AM

I have done a dual 12" sub box under the rear deck in this car and I am about to do it again. Remove the rear seat, remove the rear deck, remove the center console, remove the top rear center storage unit. Remove the plastic barriers behind the seats and finally remove the metal crossmembers. Voila, a nice phat hole to drop a sub box through for two 12" subs. In my case I used Lightning Audio Strike aluminum subs, this time it will be Eclipse aluminum subs in the proper 2.5 cu.ft sealed enclosure. Fire the subs towards the rear of the trunk. If you are only going with one sub, it is all about the box, the Eclipse aluminum driver takes a 1.25 cu.ft. sealed enclosure and it provides deep bass with authority. It is not a one note wonder like other subs on the market but a sub that in this box is highly capable of multi tone bass response without hanging up on itself.

Tell your friends that they are wrong, a 10" can and will play the same deep bass as a 12", it just cannot do it with the same amplitude for the most part. This changes from type of sub to type of sub. The Eclipse aluminum 10" is what I used in my MR2 and with a pair of them, it was waaaaaaaay too much output. Hope this answers your questions.

akersjp 05-11-2005 12:02 PM

forbidden,
That answers a lot, so would it be better going with 2 10"s? Is that just going to make it louder, won't help how deep it goes I assume right? But with 1 10" can it get pretty loud? Thanks in advance.
akersjp

akersjp 05-11-2005 12:22 PM

Ok, another question. How would this setup be:

Infinity Kappa Perfect 10.1D (dual voice coil)
Rockford fosgate 5 gate 4chan amp (somebody told me I would need 4 chan if I had a dual voice coil sub)

Would this work with the bose system, I'm assuming I still would need the bose line converter for this to work. Thanks.
akersjp

XTACY 05-11-2005 12:42 PM

I did not want to loose too much of the little trunk that i have. yes i have the spare tire and there will be enough room to move he tire in and out of the trunk. but to be honest fiberglass enclosures are not cheap and typically woofers that work well in (very) small enclosures are more expensive.

XTACY 05-11-2005 12:44 PM

you do not need a four channel amp for a dvc sub.

akersjp 05-11-2005 12:52 PM

XTACY,
Can you explain about not needing the 4 channel amp for a dual voice coil sub? I guess I don't understand what the dual voice coil amp is for and why it is better. Also, what kind of subs would fit better in smaller enclosures, or what should I look for in the specs of subs to find this out? Thanks.
akersjp

Jag 05-11-2005 02:13 PM

I'm also in the process of choosing my audio set-up for my 8, Forbidden has been a big help answering all my questions. The fact that the sub is a dual voice coil has no bearing on the type of amp as long as the impedance isn't lower than what the amp can handle. You could get a mono 1-channel amp for the sub and a 4-channel amp for the fronts/rears or one 5-channel amp to do it all.

I'm going with a 5-channel amp and one 10" sub in one of 4080's boxes. I'll probably be going with the Eclipse PA5532 or Crossfire vr705d 5-channel amp and either an Eclipse Aluminum or JL 10w6v2 sub. Haven't decided on front components, probably Boston or Focal and replace the rear 6x9's with something not too expensive since they're only for rear fill.

forbidden 05-11-2005 03:11 PM

^^^ Remember to match front and rear speakers for tone & timbre, like brands are closer to the same. A dual voice coil sub allows more wiring configurations for different amplifiers. In 99% of cases a 4 channel amp is not a good idea for a dvc sub. A dvc does not sound or perform better, it is all about wiring configuration to differing amps. Ignore specs on subs, they will not tell the average consumer how it sounds in your car. Eclipse makes some really good subs that perform exceptional in small sealed boxes.

So yes you still need the interface adaptor, in this case with the Bose system, use the Audio Control 6XS, non Bose system, use the LC6 + bass remote. If space is a concern, a single 5 channel amplifier + the proper choice of sub is the way to go. The Eclipse PA5532 amp I mentioned earlier will operate properly with one dvc sub of either 10" or 12" variety.

vdelvec 05-11-2005 10:12 PM


Originally Posted by Jag
I'm also in the process of choosing my audio set-up for my 8, Forbidden has been a big help answering all my questions. The fact that the sub is a dual voice coil has no bearing on the type of amp as long as the impedance isn't lower than what the amp can handle. You could get a mono 1-channel amp for the sub and a 4-channel amp for the fronts/rears or one 5-channel amp to do it all.

I'm going with a 5-channel amp and one 10" sub in one of 4080's boxes. I'll probably be going with the Eclipse PA5532 or Crossfire vr705d 5-channel amp and either an Eclipse Aluminum or JL 10w6v2 sub. Haven't decided on front components, probably Boston or Focal and replace the rear 6x9's with something not too expensive since they're only for rear fill.

I'd definitely go with Boston over Focal.

TRU681 05-12-2005 03:46 AM


Originally Posted by vdelvec
I'd definitely go with Boston over Focal.

People have their own prefferences but Boston is not in the same league as Focals.

Jag 05-12-2005 09:32 AM


People have their own prefferences but Boston is not in the same league as Focals.
What makes you say that? Bostons Z6 are pretty impressive speakers compared to what the same money will get you from Focal.

forbidden 05-12-2005 12:49 PM

Both are good speakers, but we all hear differently, choose a speaker for how it sounds first and foremost. I prefer the top end of the MB Quart as I am hard of hearing (go figure) but prefer the midbass of the Focal. With the relative instability of MB Quart right now, this is why I have not been recommending them.


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