Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!rpi!uwm.edu!csd4.csd.uwm.edu!info-high-audio-request From: mhk@racer.HQ.Ileaf.COM Newsgroups: rec.audio.high-end Subject: Re:Modications to Hafler preamp DH-101 Wanted. Message-ID: <12153@uwm.edu> Date: 15 May 91 12:49:24 GMT Sender: news@uwm.edu Lines: 22 Approved: tjk@csd4.csd.uwm.edu Originator: tjk@csd4.csd.uwm.edu I'll second the reccommendation of Musical Concepts. but... instead of the modification kit, get the MC-III board installed. It does cost more, but sounds better. It is a dual-mono design with seperate regulated power supplies for each channel. My DH110 sounded very good after all the mods, matched transistors, and teflon capacitors, but my MC-IIIT(eflon) sounds better. And if you really want to do it right, do what I'm doing: putting the board in my own chassis with Cardas jacks, EVS stepped attenuators, Cardas hook-up wire, and an 8-amp outboard power supply. If you want a really simple and cheap mod to the DH101, look in some (far) back issues of Audio Amateur. There was at least one article and the numerous follow-up letters. It won't sound as good as the Musical Concepts mods, but it will sound better than stock. Keep in mind that the DH101 is a cheap pre-amp (good for a spare) and you won't be able to sell a modified unit for what's invested in it.