Amp for lightspeed attenuator? = $1000 used

George: thanks for all the insight. I can't seem to find the burston 100 anywhere --- would a musical fidelity x-dac tube buffer work also? There's one in the classifieds now: http://app.audiogon.com/listings/musical-fidelity-x-dac-v-3-tube-stage-buffer

Or are there other tube buffers you consider reasonable for not messing about with the signal?

Thanks for all the amp pointers!

I'm having a hard time tracking down the older recommendations. Does anyone have experience with Muse 150s or with marantz ma-700 monoblocks?

Again, I need something ideally that is more than 100W @ 8ohm.

George: the burson 160 is still for sale. Would that work as well as the 100?

http://www.frontendaudio.com/ProductDetails.asp?ProductCode=9999-11288&click=18920

Dddrrreee: trouble is the xdac is a tube ouput stage buffer you will be back in the same boat trying to drive your 10k amp and ?k two times active subs from it. It needs to be a solid state buffer. with 100ohms or less output impedance.

Cheers George

Thanks George. Since you recommended the burson-100, did you have any thoughts on the burson ab-160? The specs look as you suggest:

http://www.partsconnexion.com/burson/ab-160.html

Input impedance: 500 KOhms
Frequency response: 1Hz (-0.3dB) to 35 kHz (-1dB)
Signal to noise ratio: >120dB at 0dB gain
Output impedance: line out 15 Ohms @ line level
Power dissipation: >10W, internal, regulated power supply
Maximum Output Voltage :12VRMS
Maximum Input Voltage: 6VRMS