Bryston 7B SST2 monoblock amps

PolkAudio_Geek

Are Bryston 7B SST2 monoblock amps compatible with the Polk L800 speakers?

SeleniumFalcon

It would depend upon the amplifier's output circuit topography, in order for the SDA technology to work properly the left channel ground and the right channel ground need to be connected to each other. If the amplifiers are a balanced output design this means that there is voltage present at both the positive and negative speaker terminals and the left and right negatives cannot be connected together. If, on the other hand, there is no voltage present on the left and right amplifier's negative speaker terminals then a ground connection can be made between them.
Bryston should be able to answer this for you.

PolkAudio_Geek

Would you happen to know if Parasound JC-1 monoblocks are compatible with SDA?

SeleniumFalcon

You can certainly see all of those paralleled output transistors and their power supply feed on the right hand section of the drawing, each rail has its fuse. Each transistor's output is fed through emitter resistors and all connected together. It doesn't appear to be a balanced output, but I would still recommend contacting Parasound and confirming that to be sure.

PolkAudio_Geek

Thank you so much for the feedback. Here's what I found on the Bryston 7B SST2 monoblocks:

The 7B SST2 single-channel amplifier employs a balanced-output design that reduces THD and IMD to unprecedented low values (typically 0.001% or less).

With a low noise floor (typically below -118dB) and excellent signal tracking characteristics (slew rate of 120 Volts per microsecond), the 7B SST2 monoblock assures a new degree of transparency, musicality, and ease of listening.

We invite you to experience the Bryston SST2 Series amplifiers

20 Year Warranty -A Generation of Music

Features:

New cosmetics
New Push on/off power switch
600 watts at 8 ohms,
900 watts at 4 ohms
New SST 2 output devices
Increased power supply capacitance
- 30,000 MFD per channel
Selectable Balanced or Unbalanced inputs
Lower noise and distortion
New Independent ultra-low-noise power transformer
New computer modeled heat-sink design
Quick connect remote 12 volt trigger
Selectable gain - 1 Volt or 2 Volt
Available in Silver or black finish with 19 or 17 inch faceplate
20 Year Warranty

audioluvr

PolkAudio_Geek wrote: »

Are Bryston 7B SST2 monoblock amps compatible with the Polk L800 speakers?

Yes