John does remarkable things with Hafler. I have a modified Adcom 555 from him. It's my back up amp. He molded my Adcom 750 pre amp and it sounds awesome. I even have a Magnavox 650 cd player crammed into a 470 with The Epoch mods. I'm tempted to send it in to find the problem with it. It's has an outside power supply and a Crown Dac chip. Sounded good for its day. Your welcome,you cannot go wrong with John's mods.
What amp to pair with a Hafler DH-110 Preamp?
I recently purchased a refurbished , recapped back up to factory specifications Hafler DH-110 Preamp. I had one back in the day and liked how it sounded. I thought it was the best one from Hafler when used a Hafler amp and with a good turntable set up. What amplifiers would go best with it to power ADS L1590 or ADS MK1290 floor stander speakers? The MK1290 ADS speakers are not nearly as bright sounding as the ADS L1590 model. The latter has a high efficiency rating. Speakers are in very good condition and one pair has been refurbished and brought back up to spec. Also own and use a pair of Snell Model E speakers that sound nice.
Another excellent option: https://www.hifishark.com/model/hafler-9505 If you don't need that much juice and can find one: https://www.hifishark.com/search?q=hafler+9303 I've been using a (personally modded) 9505 to power my woofer system, for over 20 years. Tried it as a main amp, with a variety of speakers and if I ever give up SS bottom/monoblock tubes on top; it'll be my stereo amp. A stroll down Memory Lane: https://www.stereophile.com/content/hafler-transnova-9500-power-amplifier Of course: Rockford-Fosgate was the builder of the later 'Hafler' iterations. A couple 9300's, here: More memories, re: 9505- https://www.gammaelectronics.xyz/audio_04-1996_hafler.html
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