How can i put a car subwoofer in my room

[baamf]

I want to put a car subwoofer in my room but I am at a loss on how to do it. I installed them in my car but that seems to be completely different than putting them in my room. So I am wondering if anyone could possibly explain how to hook up a car subwoofer in my room and what I would need to do that?

 

[bob91343]

The problem is to isolate the front from the back. A very large board would do it. A box would work but for low frequencies it would have to be large or, alternatively, need a very powerful amplifier to get much sound.

 

[neddludd]

It wont be as impressive as in the car, but a 12" car sub in a small sealed box will be 'ok' in a corner.

You will either require a 120/240v > 12v PSU like a PC PSU to power your car amp, or buy a plate amp/stereo.

 

[mashaffer]

You could put it in a small sealed box and EQ the crap out of it to make up for lost cabin gain. Or get the TS parameters and model it to see what it can really do.

 

[FlipC]

What do you mean by put them into your room?

We assume that they are in some type of enclosure already.
We assume you have a car amplifier for said woofer.

So go purchase a 12v converter to hook up amp (not just any make sure it can do the job) and place where ever you can that sounds best.

 

[col]

I use 2 low profile car subs in my flat. They are in very small sealed enclosures which is nice as I don't have loads of room space. Amplifier power is cheaper for me than room space, I'm using two Hypex UcD400 modules. I also use the Rod Elliot EAS sub controller:

P48 Sub-Woofer Controller (Rev-A)

My mains are sealed and blend into the subs nicely.

col.

 

[osscar]

Im also just now building a active subwoofer using old Pioneer car woofer. Box and the amplifier (Leach amp 4.5 inside box) is already ready, it remains to assemble everything together and complete the painting of box. Then tell how it all turn out

 

[Glowbug]

Whatever you do, buy a real (home) amp for them.

They're cheap enough from places like Parts Express or Apexjr, that there's no excuse for being unsafe by trying to use 12VDC equipment.

 

[THORNSPAWN]

Plate amps are cheap enough, I'm in the process of building 2 powered subs using response 10" carbon fibre car subs. My HT sub has 2 15" car subs but that was because I already had them.

 

[bobodioulasso]

Abstracting:
You need a rather powerfull mono amp and active two way filter around 80/100hz.
Plate amps do all.
This kind of speaker have parameters allowing to mount them in small boxes, closed or vented. Closed boxes though going not so low than vented , sound better and are simpler to build.

 

[osscar]

Of course, plate AMPS is cheaper and easier to integrate. But I like the DIY process - the creation of PCBs, soldering, cabinet making. Then I will compare the sounds produced by my factory subwoofer which I use now with sound and of the DIY subwoofer( made of all available in the garage ).

 

[bobodioulasso]

Oscar,
how sound your gainclones compared to your discrete amps.
I never built any gainclone and i am tempted now.

 

[osscar]

LM 3875 sounds very nice for me. It uses two 100VA transformers (2x24V AC). 8x2 MUR diodes, and two RIFA white big caps (15 000uf @ 40V) . Non inverting config (minimal gaincard style). I use it with 8 ohm speakers. Very cool operation during normal listening.
LM 1875 - build as design element - non inverting config +- the same like 3875, never used for long listening (just few hours), but IMHO LM3875 sounds better or my speakers are too big for LM 1875.
For everyday use my choice between F5 or Leach depending on ny mood - LM was built for test purposes in order to understand is they really so good like described in internet. They are good really - i will buy some shelf speakers for LM amps.

 

[osscar]

to not go offtopic, here is some pics of my DIY sub progress.