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-   -   matching this sub with amp, does this work, I'm not sure (http://www.diyaudio.com/forums/car-audio/45226-matching-sub-amp-does-work-im-not-sure.html)

A-type 8th November 2004 06:36 AM

matching this sub with amp, does this work, I'm not sure
 
Ok i just want a subtle sub setup since I am limited with space, if I understand everything righ on how to connect dual voice coil subs this should work right? Here are the specs...I tired searching of r an answer but maybe I'm not putting in all the info I think this will work, but I new to this so it's a bit confusing for me... :xeye:

here are the specs for the amp:
Max power output (4ohm) 2ch: 100W x2
Max power output (4ohm) 1ch: 222W x 1
Rated Power Output (4ohm) 2ch: 35W x 2
Rated Power Output (4ohm) 1ch: 80w x 1
Low pass filter (80Hz, -12dB / oct)
High level input
Bridgeable
Dual mode capability
MOSFET power
Gold plated terminals.

The Sub is an Audiobahn :
Audiobahn AW831T
8" High Performance Subwoofer
Power Handling 200W RMS
Treated Spruce Pulp Paper Cone
30 Oz Strontium Magnet
Black Aluminum V.C. Former
Polished Bumped And Vented T-Yoke
Lug Lock Terminals
Treated Foam Surround
Chrome Plated Basket
Flat Spider
Rubber Gasket And Magnet Mesh Cover
Frequency Response 28-500Hz
Efficiency 88.3dB 1W/1M
Dual 1.5" 4 Voice Coils
2 or 8 or Stereo 4 Operation
Chrome Flame Baseket

Sly1990 9th November 2004 12:35 PM

IMO you should get a better amp....

Your sub is rated at 200W Nominal (RMS) and your Amp is only 80w nominal (when bridge @ 4ohm)

This is the problem when looking for Amp and Spkr....
They Sale the Amp at Peak Wattage.... but Peak wattage is not a reference for a good SoundSystem.


Exemple :
- MTX -->> 1200W peak = +/- 300w RMS
- Rockford Fosgate -->> 400w peak = 200RMS

tsmith1315 9th November 2004 02:50 PM

A-type asked:

Quote:

Ok i just want a subtle sub setup since I am limited with space, if I understand everything righ on how to connect dual voice coil subs this should work right?
Just connect each voice coil to amp channel as if it were an individual speaker.

You'd need to connect the voice coils in series to run the amp in bridged mode, but there would be no gain in power. If the amp has separate R&L gain controls, this would be the preferred method. Otherwise, bridging would offer no advantages.

Sly1990 wrote:

Quote:

Your sub is rated at 200W Nominal (RMS) and your Amp is only 80w nominal (when bridge @ 4ohm)
I quit paying attention to speaker power ratings years ago. All too often they are just marketing hype. Acoustic power handling is limited by the speaker/box combination anyway, and is usually extremely low compared to the (advertised) thermal power handling.

There has always been temptation to match to power ratings between speaker and amp. In reality, there's no reason to do so. Just be sure the thermal power limit of the speaker isn't less than the acoustic limit of the speaker/enclosure.

Tim

A-type 10th November 2004 06:32 AM

thanks for the advice guys ;)


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