Mono Blocks / why are they not more prevalent? + Wyrded4Sound SX1000R


I am just learning about mono-blocks, and if they provide the benefits claimed why are they not used by more  audiophiles? I  am looking for a used Wyred4Dound Sx1000R- any  thoughts? 

mendef

I guess I’ll never know unless I can get an amp that comes in stereo and has a mono option , like Odyssey. You might email them and ask. For me I have 3 rigs, the large on has Rogue M-180’s which are about 45 lbs each and pretty bulky. If I remember correctly Ralph had a post where they were driving big Maggie’s with OTL tube mono blocks. The thread talked about using heavy gauge speaker cables the were only 18 inches long. Under the circumstances the heavy gauge and short length made a big difference. In this case mono’s were a must for close placement. If my memory of this is incorrect, please put me in blast. Cheers, Mike B. 

There's no objective evidence that monoblocks provide better sound than stereo amps, integrateds, receivers, etc, especially with the higher quality parts that are available today. A lot of people in this hobby are older and aren't able to move on from long held beliefs regardless of what specs and objective testing tells them.

Dual Mono designs seem to bridge the divide. One power cord, but two separate power supplies and amplifier circuits. Just housed in one chassis. Am I missing something? 

@mashif - Often the transformer is shared, even in dual mono stereo amps, but not always (e.g., BAT). When the transformer is shared, there are greater chances of inter-channel modulation, crosstalk, and noise.  Whether any of that matters, or is audible, and how good the amplifier sounds is likely based on many other design choices, as well as the system it is being played in. While housing the amplification components for each channel in their own individual chassis reduces the likelihood of certain undesirable effects, it doesn’t guarantee success since there are good and crappy sounding amplifiers, both stereo and monoblocks. 

@mitch2 

Sharing a transformer would not qualify as dual Mono to me. I was thinking of my Bryston 3B Cubed that has separate transformers for each power supply. It's two separate amplifiers housed in one chassis that only share a power cord.