bifwynne
Responses from bifwynne
| Audio Research REF 80S Reviews/Comparisons @fsonicsmith - thanks for the update. My 80S has several hundred hours on it. The sound will get even more refined. I think the lower bass registers even tightened up too. ARC made numerous circuit changes in the 80S. Perhaps a very importan... | |
| Audio Research REF 80S Reviews/Comparisons @fsonicsmith - can you share some updated impressions on the Ref 80S. How does it compare to the Ref 150SE? Thanks BIF | |
| Audio Research REF 80S Reviews/Comparisons @fsonicsmith - agree with ghdprentice re change in sound refinement. The 80S will open up. In my experience, ... just like ghdprentice said. I look forward to your comments on the 80S in general after 200+ hours and also how the 80S compares to... | |
| Audio Research REF 80S Reviews/Comparisons @fsonicsmith - is there an epilogue to the 150SE situation? Did ARC suggest next steps? How about a local ARC authorized service tech. Even if the repair is properly done, I would expect that the tech would thoroughly bench test the 150SE to m... | |
| Audio Research REF 80S Reviews/Comparisons @fsonicsmith - unless I am mistaken, which may be the case since I am not a tech, you have the same problem I had. The plastic cover of the slow start circuit fuse is burned. If so, the solenoid start switch and thermister need to be replaced. ... | |
| Audio Research REF 80S Reviews/Comparisons @fsonicsmith - I agree that phase angle is important. If the speaker's phase angle is highly capacitive at low frequencies and the impedance is also low, most techs would say that the amp should be able to produce a lot of current to get the spea... | |
| Audio Research REF 80S Reviews/Comparisons @fsonicsmith See my responses below: Although every loudspeaker is (duh) different, what is the nominal impedance of your Paradigm Sig S8 V3’s and what tap did you find best? Response: The S8 (v3) nominal impedance is 8 ohms, but that i... | |
| Audio Research REF 80S Reviews/Comparisons @fsonicsmith - sorry if I blinked and missed something, .... but what happened to your Ref 150SE? Did you get the Ref 80S yet? If so, did you get a chance to compare the 150SE to the 80S? I took the same journey. My Ref 150SE needed an expe... | |
| Are all amps being built wrong? @holmz ... I agree with your last 3 sentences. As to your 2 bullet points, ... sure, try to spend time educating your ears, switch gear in and out, burn sales people's time. If the sales people think your not a buyer, they will toss you. IME, i... | |
| Are all amps being built wrong? @atmasphere ... thanks Ralph. I would be fibbing if I said I understood everything you just posted, but at a high level I can appreciate a little bit better why feedback is used and what its limitations are.Too bad our hobby is really a business... | |
| Are all amps being built wrong? @atmasphere Ralph, thanks for the info. I recall that many years ago you explained that global NF creates temporal intermodular (TIM) distortion because of the infinitesimally small amount of time that it takes for the signal (after phase inversi... | |
| What angle should I set the VTA on my VPI turntable? Just for kicks and giggles, I bought an Elvon "LP Vinyl Record Player Measuring Phono Tonearm VTA/Cartridge Azimuth Ruler." The kit comes with a super light and super small bubble-level. Dirt cheap too.I also rooted around for the box and instru... | |
| Are all amps being built wrong? @atmasphere Ralph, quick question on negative feedback (NF) distortion. I seem to recall that Audio Research output stage coupling is a combination of "Ultralinear" and "partially cathode-coupled" topology. I have no idea what that means. I cl... | |
| What angle should I set the VTA on my VPI turntable? Thanks guys. If jcarr catches this thread, maybe he can weigh in with some practical advice since I am using one of his cartridges (Lyra Kleos). My sense is that lewm's approach makes the most sense. I ordered a cheap super light/small bubble-l... | |
| What angle should I set the VTA on my VPI turntable? Ok, ... so I just set the tonearm to be 100% parallel to the platter. Then I closed my eyes and started to adjust the VTA up and down. There were subtle changes in the sound as the folks above described. So I kept adjusting the VTA up and down ... |