atmasphere
Responses from atmasphere
| SET Shootout China VS The USA I take it you have a 12AT7 LTP @ +-300V with something like a cascode 10M45S CCS below? @pesky_wabbit Yes, something very similar to that although the CCS is our own design. There's a 'steering diode' so the cathode voltage can't fall below -0.... | |
| Anybody use a single ended component with one that is balanced? @steakster If you are talking about at the input of the amp, I think so. | |
| AGD Audio Mk2 review When are you going to have production of your GaN mono blocks and when will they be added to your website and when will they get a formal review? How many proto types are out there? The only comment on the sound seems to be from June of this year... | |
| Does a cartridge that has been in storage for an extended period need play time… The cartridge cantilever suspension is subject to perishing over time and it makes no difference if stored or played. Sometimes it gets harder and less flexible, sometimes it turns to a soft goo and the cantilever all but collapses. Different mat... | |
| AGD Audio Mk2 review Yes, there are now class D amps that challenge the best tube amps on their own turf! | |
| SET Shootout China VS The USA They just have come to learn that you have to listen to an audio product to really know if it’s for you. People realize there is no better way to select these products. Yes- heaven forbid that audio companies actually publish spec sheets that t... | |
| Anybody use a single ended component with one that is balanced? I’m not an electrical engineer but a lot of amps have the balanced outputs at plus 3db. Not sure why or how, perhaps to compensate for long cable runs that the balanced lines are designed for, but it’s a fact of life and sometimes needs to be add... | |
| Guess How Big My Speakers Are If the amp has a high output impedance the speaker might have a much higher output in the bass resonance area than one would expect. Nelson Pass demonstrated this at a RMAF about 10 years ago using a current source amp and open baffle speakers. T... | |
| Anybody use a single ended component with one that is balanced? Balanced pre & amp will provide 6db additional gain and reject noise. @sbank If the balanced line standard is being observed, this should not happen! Yes, balanced is a bit louder… one small turn of the volume control, no difference in ... | |
| Why do my bass drivers shake violently listening to vinyl It is always 10" or below and always with turntables. With many amps going clear down to DC surface irregularities in the vinyl will cause the woofers to flap. @mijostyn Back in the old days I used to run some Fried G2s which had a 10" IIRC and... | |
| SET Shootout China VS The USA Upon introduction to a good DHT SET some listeners find a purity, aliveness, transparency and most importantly a genuine deep emotional connection with their music listening experience. These traits were found lacking to some degree with their pr... | |
| Best cost no object tube phono @reimarc Since the hum has been in two phono sections so far, I am suspicious they are not the problem. It might be that there is a problem with the tonearm cable and/or wiring. Or it could be an issue where the phono section is too close to a h... | |
| How important is the cable between the SUT and phono pre? However, transformers do not reflect secondary load C to the primary. @jpjones3318 Transformers transform impedance and impedance includes capacitance. However, things are not as simple as just that. You have to also consider how a paralle... | |
| SET Shootout China VS The USA Why did you use EL95 in ultralinear mode? Why you didn’t use 2a3 or 45 tubes for your push-pull amp? @alexberger I’d already built the PP 45 amps and they were rather large. One problem of DHTs is you have to run DC if you want the output sec... | |
| SET Shootout China VS The USA The new OP Q is KT series tubes PP I've been exploring SETs for nearly 30 years. I started with 300bs, then it was the 2A3, finally the type 45. Then I decided to see how a PP 45-based amp would sound and it ran circles around the SET version-... |