atmasphere
Responses from atmasphere
| Phono Preamp. With transformer or fully active With one SUT you can't use all MC cartridges, such phono stage is not universal for all MC. It will work for some of them nicely, but if your cartridge impedance is very low (2 Ohm) or very high (40 Ohm) you can't use one SUT for both of them. ... | |
| Quad ESL 57 with subwoofer @noromance You might also consider a set of Swarm subs from Audiokinesis.comThey will insure that you get 20Hz response, with bass evenly distributed throughout the room, since the Swarm system eliminates standing waves that might otherwise be pr... | |
| SET 45 and their (real) required speaker efficiency @vvcv A nice plan B to consider: If you are set on the type 45 power tube, why not get an amp that uses a pair in push-pull? I've done direct comparisons; the thing about any SET is that you really don't want to run them past about 20% of their t... | |
| Tube Amps and Friendly Speakers - Back Impedance But... I do understand... that they use SS amps to design and voice their speakers... so... I guess it would make sense to stick with SS. There's a big 'that depends' going on here. You really don't 'voice' a speaker to a particular amp (that is... | |
| MartinLogans and Cary CAD-805s / electrostats and SET amps Alternatively you can use a set of ZEROs (www.zeroimpedance.com) which will allow you to use a tube amplifier and the highs will be just fine.The high frequencies do not need a lot of power. but the overall sensitivity of this speaker is low enoug... | |
| SET 45 and their (real) required speaker efficiency A type 45 based amp is really only going to make about 0.75 watts or so unless you are using some kind of super-45 of which a few exist.My 45-based amp uses original RCA output tubes. My speakers are 98 dB and 16 ohms; very easy to drive but simpl... | |
| 100W, 200W, or 300W? Digging through the Mac specs it appears that their own direct coupled design has 5 times the damping factor of the autoformer design. While it seems debatable if damping factor beyond 250 has real-world gain, these values seem to be within the... | |
| Restoring vintage H/K Citation 19 Power Amp @dgarretson I think Jim only does the Citation 2 and 5. | |
| Expanding questions about tubes in a preamp Gents, how the hell does adding damping rings change the sound of a tube. Nonsense! Answer: by reducing microphonics. The effect is easily measured and heard.But using a low microphonics tube is more effective yet. Installing dampers on them has t... | |
| New to preamp amp, turning on question Many preamps have a mute feature when turning on. This is to prevent thumps in the speaker.The usual procedure for any amp/preamp combo is to turn the preamp on first and let it sit for about 30 seconds prior to turning on the amp. This will insur... | |
| Restoring vintage H/K Citation 19 Power Amp Something this old will need new filter capacitors in the power supply. That is the source of the buzz (its a 'buzz' if its anything over 60Hz FWIW), and the reason its not there if you cycle it off.If the filter capacitors are not replaced, the p... | |
| 100W, 200W, or 300W? @eisenb11 If you can't clip your existing amp then possibly yes to a class A amplifier. High end is all about nuance!'Echoey' isn't good- that makes the room more lively and harder to enjoy at higher volumes. So you may find that once the treatme... | |
| arc reference 300's preamp ideas Is there any reason that you would get an ARC preamp- there are other balanced line tube preamps out there. The Ref series are some of their better sounding preamps though. | |
| my $686 stereo system, laugh if you want... @bottomsup One thing to look out for on equipment that old are the filter capacitors in the power supply. You got an amazing deal- someone clearly had no idea of what they were selling. But if a filter capacitor fails (and this stuff is old enoug... | |
| Finding the bad tube You'll need a known good tube. Swap it in, one tube at a time. If you hear an improvement, then you know that known good tube is helping.But you may have more than one bad tube- they have a way of going slowly downhill; at some point they can get ... |