atmasphere

Responses from atmasphere

Tube buffer ???
How would you use the tube buffer to help your phono sound?? This does not make sense to me. 
How do you know when to replace tubes
A tube tester is always a good way to tell.In our gear, it tends to move towards a sleepy sound if the tubes are shot. 
Looking for Tube Pre-Amp Recommendations
Zd542, We've had that model of CJ preamp come through here for repair in the past. It was pretty quiet- I don't see noise as being an issue with Duke's speakers. 
tube pre amp and Krell FPB 600
^^Even if you have solid state you can get a thump. The reason you don't is your preamp has an automatic mute.Many tube preamps do nowadays too. 
Looking for Tube Pre-Amp Recommendations
Based on the specs I am seeing online for the speaker, I think your bottleneck is the interface between the speakers and the amp. You are making the amp do a lot of work to drive the speakers to a reasonable volume. The speakers are 4 ohms, which ... 
I need a couple suggestions for a preamp
Looks like you have a balanced input.There are balanced tube preamps, the only vintage one being a preamp made by us, the MP-1 (which we still make). I don't see specs on the amp website, which will be something you might want to know depending on... 
tube pre amp and Krell FPB 600
Salectric, Historically tube preamps have been in use with solid state amps for **decades**! Solid state amps by their very nature have to have a protection circuit, and there aren't any warmup thumps that a tube preamp can make that can damage th... 
tube pre amp and Krell FPB 600
The input of the Krell is direct-coupled (no coupling caps). This is why they are 'concerned'. However, the claim that tube preamps put out DC is ridiculous. They no more do that than solid state. 
Class A or AB amp for JBL S4700 speakers
In other words, it is class AB.Class A amplifiers are class A right to full output. 
I'm in a preamp pickle: ARC Ref 1 VS CJ 17LS
I would go with the CJ. The ARC has the drier house sound that is part of the ARC legacy. The warmer sound of the CJ will complement your system nicely. 
Super-sensitive volume controls - remedy?
Really the best way to do it right is to send the CDP or DAC back to the manufacturer and ask that they lower the output. Its not that hard for them to do it and usually the result is better sound in addition to less troubles. We have tried buildi... 
The first watts
^^ For the most part, I would not either, whether the amp is tube or solid state. Due to the rather low efficiency of the speakers, power is likely going to be more important than what class of operation is employed. 
Tube Curious - Preamp Suggestions
Or swap out the preamp further down the line... Since the amplifier is balanced I would look for a balanced preamp as well. A lot of the Parasound amplifiers have a 33K input impedance, which is at the bottom limit of what is recommended for the A... 
Super-sensitive volume controls - remedy?
Thanks for pointing that out George. Funny thing though, we see 4 volts and more all the time, of course we get a lot of balanced line DACs and CDPs used with our stuff, which may explain the disparity. 
Surreal Speakers: Made to order in Virginia, USA
I understand the speaker is tube-friendly as well. FWIW I've known Ruston for years and he has no association with Surreal.