SET amp for Gallo ref 3.1


I am currently driving my my Gallo Ref 3.1 (with Gallo subwoofer amp)with vintage Marantz MA 1 monoblocs(class A). Preamp is McIntosh C220, analog front end VPI Superscoutmaster with a Shelter 90x, digital front end OPPO BD 83. I have recently become addicted to SET tube amplification and wondered if anybody had any experience with tube amplification for the Gallos. I listen mostly to orchestral music and Jazz at moderate levels (80-85 dB) in a rel. hard middle sized room.
hanshhh

Showing 4 responses by hanshhh

Thanks Richard for making me aware of the Butler Amps. Having read some on the internet I can not claim to know whats going on inside them - but they shure look like a great match for the Gallos.

As for the SET glory I see that I would need an ultrastable current delivering design as pointed out by Jeff and Dave. What make amplifier is your 2x12WPC design.... if I may ask ?

Thanks for helping out

Hans
From the posts I glean that I seem to value SET "glory" over neutral sound....shame on me! The Music Reference have been on my list to listen for a while as they seem to be well built and powerful. The Canary would currently break my bank - although I would love to play with bias. Having a precision multimeter next to my poweramps all the time....

SET vs. push -pull: I have tried the push-pull KT88 (or 6550) based Triode TRV M88SE monoblocs (around 40Watts) on the Gallos with subamp and it sounds fine - its just lacking the magic that the the SET Audio Mirrors (6C33 based 45Watt design) can do. In my room at at my listening levels it looks as if 40Watt plus is ample for me. I could probably get by with some 20 clean and stable SET Watts from a 211 or 845 based amp.

Sub amp: I am using the Gallo subamp set for enhancing the below 40Hz region only. All other setting I have tried seem to mess things around 100 Hz up. Using a SPl I get decent output at 25 Hz and some at 20. Switching off the subamp takes the oomph factor out of good modern recordings (i.e. Eric Bibb) and makes orchestra play in smaller halls. I clearly could not live without the subamp. But then many people love speakers with little output below 40Hz.
Bobheinatz

sounds a bell with me.....driving a pair of Klipschhorns in my basement with a slightly modified set of the old Quad 22 (not SET I know). Each time I listen to some small scale jazz on that setup it sounds REAL.

Unfortunately my living room has some space constraints and I cant think of any SET friendly speaker that would replace my Gallos and not my wife.... (by the way, the Quads do not work well on the Gallos, they run out of steam even at my modest listening levels)

lack of fantasy ???
Bobheinatz

I could not agree more with you - but as you state yourself size maybe a part of the SET fancy; to get a good below 50Hz response you simply need a lot of bass membrane surface combined with enough cabinet volume to get there on puny power with authority. My Klipschhorn fare great on meagre 15 Quad Watts (all the way down to 30Hz (which is fine for most music). The low ferquency power output was one reason why I choose the Gallos with the subamp setup - still hoping that some 211 or 845 based amp will take care of anything >40Hz...

Happy New Year

hanshhh