kpeezy Posted December 14, 2009 Report Share Posted December 14, 2009 "There is no innovation in stereo amp design in a sense that there isn't any room for it, its based on an hi quality op amp chip that takes and input signal and outputs an amplified signal, the basic formula is still the same in every amp the difference is the ratio of resistors and caps and inductors used (value ratio which influences RC and LC constants in the cir), quality of components and the op amp chip" That is a quote from a local friend. We were discussing the Eico HF-81. He basically doesn't understand how an amp with bad measurements could sound good. Basically, what is truly important in the sound of an amp? I'm not into this side of the hobby but I'm sure there are people here who can answer this (and I'm tired of being asked technical things ). Quote Link to comment Share on other sites More sharing options...
kpeezy Posted December 14, 2009 Author Report Share Posted December 14, 2009 In case it wasn't clear, he doesn't think that the design of the amp (whatever that entails) is too standardized to be the major factor. Quote Link to comment Share on other sites More sharing options...
kpeezy Posted December 14, 2009 Author Report Share Posted December 14, 2009 He thinks that the design... Quote Link to comment Share on other sites More sharing options...
luvdunhill Posted December 14, 2009 Report Share Posted December 14, 2009 you could turn his question around on him. assuming his words are in the quotation marks, you could ask: "when you say hi quality opamp, what makes it high quality?" perhaps those same qualities make one amplifier better than another? Quote Link to comment Share on other sites More sharing options...
aerius Posted December 14, 2009 Report Share Posted December 14, 2009 The problem here is "what is a bad measurement?" If the specification which is being measured has little to no correlation with perceived sound quality, then does it matter if the measurement is "good" or "bad"? And that's a problem in audio these days, getting the data we measure to correlate with the sound quality we perceive isn't as straightforward as it may first appear. Quote Link to comment Share on other sites More sharing options...
peranders Posted December 16, 2009 Report Share Posted December 16, 2009 Basically, what is truly important in the sound of an amp? I'm not into this side of the hobby but I'm sure there are people here who can answer this (and I'm tired of being asked technical things ).You have a sliding scale of performance when it sounds awful, bad, fair, nice and very nice and this scale is very dependent of the music you are listening to. Headphones are a rather easy load so it's in other words pretty easy to make a good amp although there are differences. A friend of mine borrowed my QRV04 (OPA627, BUF634), QRV07 (TPA6120) and my masterpiece QRV08 (discrete). All designs have extremely low distortion but the QRV08 was too good. It revealed too much recording flaws according to him but I like to hear everything so it's about personal taste also. Quote Link to comment Share on other sites More sharing options...
postjack Posted December 16, 2009 Report Share Posted December 16, 2009 how loud it get Quote Link to comment Share on other sites More sharing options...
Duggeh Posted December 16, 2009 Report Share Posted December 16, 2009 how loud it get Mine amp have from -infinity to -0. It best. Quote Link to comment Share on other sites More sharing options...
postjack Posted December 16, 2009 Report Share Posted December 16, 2009 Mine amp have from -infinity to -0. It best. yeah that best! Quote Link to comment Share on other sites More sharing options...
grawk Posted December 16, 2009 Report Share Posted December 16, 2009 from 0 to 1/0 Quote Link to comment Share on other sites More sharing options...
luvdunhill Posted December 16, 2009 Report Share Posted December 16, 2009 fuse direction? Quote Link to comment Share on other sites More sharing options...
aerius Posted December 18, 2009 Report Share Posted December 18, 2009 fuse direction? Nah, I hear the in thing these days is replacing the fuse with a piece of gold wire. Quote Link to comment Share on other sites More sharing options...
luvdunhill Posted December 18, 2009 Report Share Posted December 18, 2009 Nah, I hear the in thing these days is replacing the fuse with a piece of gold wire. ah, Jack at Electra-Print needs to upgrade his tin strips I see Quote Link to comment Share on other sites More sharing options...
kpeezy Posted December 18, 2009 Author Report Share Posted December 18, 2009 how loud it get Quote Link to comment Share on other sites More sharing options...
spritzer Posted December 18, 2009 Report Share Posted December 18, 2009 11, duhh... Quote Link to comment Share on other sites More sharing options...
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