questions on first sub build - diyAudio
Go Back   Home > Forums > Loudspeakers > Subwoofers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 15th September 2005, 06:52 PM   #1
diyAudio Member
 
Join Date: Sep 2005
Default questions on first sub build

I'm just starting to get into somewhat high end home audio, and have been into car audio for a while.

With the purchase of my preamp, amp and speakers I have begun wondering if I want to add a sub as the system will eventually evolve from a 2 channel to a 5.1 channel surround system.

I have always been fascinated with the idea of using certain car audio components in a home setting - particularly a subwoofer.

My thoughts were to try to use a JL 10w7 in a sealed downfire box that I would build and power it with something along the lines of a parasound hca-1200 mkII in bridged mode.

Are there any glaring problems with an idea like this (other than impedence...I might have to use a DVC 4ohm 10w6 instead). Most home theater amps are only stable down to 4 ohms....

If not using a home theater amp, maybe a car audio amp like the JL 500/1 or memphis 500 x 1 mounted to the back of the enclosure and then powered with a decent PS...

any thoughts?
  Reply With Quote
Old 15th September 2005, 07:47 PM   #2
diyAudio Member
 
leadbelly's Avatar
 
Join Date: Dec 2002
Location: Calgary, Alberta
Implementing car audio components has been done well but does have some challenges. However if you mean that you are going to buy NEW car audio components specifically for you home HT, I would strongly recommend against this. There is just such a wide variety of equipment available made specifically for this purpose for all budgets.
__________________
Aerodynamics are for people who can't build engines. Enzo Ferrari
  Reply With Quote
Old 16th September 2005, 01:18 AM   #3
simon5 is offline simon5  Canada
diyAudio Member
 
Join Date: Nov 2004
Location: Québec, Québec
You can get nice car subwoofers that will work well in a home environment. The W7 series isn't that good for home use on the other hand because the Fs is high. You'll get extreme SPL but not much low bass (20-30 Hz). It depends what do you want, but as leadbelly said, there's several home audio subwoofers to choose from also to consider. Adire Audio for example have a Car line and a Home line.

On the other hand, for the amplifier, I'm strictly against the idea of a car amplifier with a transformer. Unless you already got an amplifier that you want to use. A transformer powerful enough for a car amplifier is not that easy to find and/or will cost quite a bit of money to build. There's several plate amplifiers available, better suited for home use. Why? Variable phase knob, variable crossover knob, variable gain knob, hi and low level imputs and outputs. There's also several Pro amplifiers to deliver alot of power for even a bit cheaper.

Rythmik Audio for example:
250W 4 ohms = 119$
350W 4 ohms = 159$

PartsExpress:
500W 4 ohms = 299$
1000W 4 ohms = 399$

QSC RMX Pro amplifiers: (All the RMX can be used with 2 channels x 2 ohms instead of mono 4 ohms)
830W 4 ohms = 299$
1400W 4 ohms = 399$
1800W 4 ohms = 499$
2400W 4 ohms = 599$
__________________
DIYaudio for President !
  Reply With Quote
Old 16th September 2005, 07:53 AM   #4
diyAudio Member
 
Join Date: Sep 2005
Well, yes I was planning on buying new components for this project. I know there are quite a few great products out there in terms of subwoofers for home audio, but I mainly wanted to do this as kind of a self gratifing experiment more than anything else.

Anyone have any idea as to some common problems that might arise in a build like this?
  Reply With Quote
Old 16th September 2005, 07:53 AM   #5
diyAudio Member
 
Join Date: Sep 2005
I guess in that case I'll start looking around for a better subwoofer to fit the application. I was somewhat worried about that particular sub not being able to reach down into the really low frequencies; but I like a really tight sounding sub, so there will probably have to be some trade off there.

As far as the amp goes, I figure I'll just use the parasound that I mentioned earlier so long as the sub is a dvc 4 ohm sub (so I can wire it to 8 ohm).
  Reply With Quote
Old 17th September 2005, 12:29 AM   #6
simon5 is offline simon5  Canada
diyAudio Member
 
Join Date: Nov 2004
Location: Québec, Québec
You already bought that amplifier?
If not, you may want to consider another one.

For subwoofers, you could get a Brahma 15D4 at Creativesound.ca maybe.
__________________
DIYaudio for President !
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Solo206 build questions yan6 Full Range 1 22nd December 2008 10:38 PM
Fonken Build Questions cgrums Full Range 3 17th October 2008 01:54 PM
first amp build... wiring questions jdbrocious Tubes / Valves 43 4th March 2008 04:21 PM
UcD 700 Amp Build Questions PrecisionAudio Class D 0 14th December 2005 07:50 PM
First amp build questions edsmith Tubes / Valves 2 13th May 2004 08:06 PM


New To Site? Need Help?

All times are GMT. The time now is 02:21 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2