harris

Hi all,
I recently purchuased a 997 Bose subwoofer unit, from E-bay for my 996 TT.
I have done the same thing some years agon on my 996 Carrera 2 01 with a 996 Bose subwoofer unit, which I had connected it with an small 2 channel amp in order to get some more bass...(result was more than satisfying)

in this case I ralised that the 997 unit ( which in size is excactly the same) does have an integrated amplifier unit......


is there a way to connect the 997 unit to my Pcm keeping the
integrated amp so that I will not have to drill any holes in order to use an external amp unit???

harris

ltc

The subwoofer unit does not connect to the PCM, it connects to the amplifier.
All content/control is passed from the headunit to amplifier via MOST (plastic optical fiber).
The amplifier has a dedicated output for the rear subwoofer (BTW, its' not really a subwoofer, just a ported bass enclosure with small drivers). You should connect to those.

harris

ltc....
you mean that the unit inside the enclosure is not a small amp????

ltc

Yes, it's a small amplifier (IIRC, it is a 12V/100W switching amplifier).

It is controlled/fed audio from the main amplifier (which should be under the bonnet, in the boot, up against the firewall.....small black aluminum extrusion with a small fan for cooling).

harris

ok....

but can this small amp inside the box be driven without the main amp???

in other words can I use this sub box without any other amp except the one that ' s inside the box??

harris

p.s. thanks a lot for your time in advance

ltc

Yes, the amp inside the box is a dumb, differential analog input, amplifier.
Give it power and an audio signal, and it will amplify and drive the 'subwoofer'.

(remember, it's not really a subwoofer, and remember "All Highs, No Lows, Must be Bose".)

harris

any sugestion how to give power and audio signal???

"I know it sounds like a V. stupid question but your answer will help me to direct my audio technician in a more detail way in order to get excactly what I want."

harris