2. amps-preamps
  3. 182799-20132

SET amplifier (for AvantGarde Duo's-original) recommendations

Hello all,
I inherited the above speaker and I have been really enjoying them.  I also have a pair of Thiel 3.7s- paired with pass labs xa60.5's (and it works!) which I also love albeit they are very different animals from the DUO's as you can imagine.

Right now I am focusing on the Duo's and have used them both with Pass Labs and a Mastersound Compact 845- both are great but there is something about the DUO's driven by this 845 SET that is magical.   The problem is that the 845 was dropped and developed a hum.  A technician went through it and managed to reduce the hum but it is still there and it bugs me- I am not sure if one of the transformers itself may have been damaged and that isn't really repairable at reasonable cost, though I will speak to Mastersound to hear their thoughts. I should add that the amp used to be dead quiet and generally Masetrsound makes superb amps- and are renown for their transformers.

So I am now starting to think about alternatives solutions- I would like to either stick to a SET of comparable quality (that is known to be relatively quiet with efficient speakers)- maybe a 300b type just for a change, or even an OTL.

There's a lot of stuff out there at the moment, take the Line Magnetics that are floating around (but would they compare to Mastersound in terms of build quality etc?) and I was hoping to get some insights on what you think would work well.  I have read a lot of reviews and while helpful at times I feel they are almost always positive and a little too generic  when comparing similar products.  I'd like to stick to a $5k or so budget (therefore I would look for something used).

pgastone

Showing 1 response by lubachl

lubachl
98 posts
 

I have AG Trios and have demoed many amplifiers on these high efficiency speakers.  The good news is you do not have to spend a lot of money on amplification to get really excellent sound.

I have two integrated amplifiers that I alternate with as they have rather different sonic attributes. My favorite is the Elekit  TU-8600 with the Lundahl transformers.  Herb Reichert has reviewed these and are in his reference system.  They sell for around $2200. My second amplifier is a Sophia MC-300 A which has a more full sound and bigger image. This amplifier is a little more expensive at $4000.

On the downside, the efficiency of these speakers makes mitigating hum a top priority so be sure to demo before you buy.

Once you become accustomed to the dynamics, both micro and macro, of high efficiency horns you will find it hard to go back to conventional drivers.

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