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kmtang

Responses from kmtang

Balanced vs RCA preamps
RCA or XLR preamp?  If you have a power amplifier with balanced IN, surely the preamp with XLR in-out would be good choice.    
Reliable Dealer for 6CS7 tubes
I just checked there are 6CS7 tubes available at Ebay. Most of them are NOS.    
Spatial Audio Raven Preamp
Yes, trust isn't come easy. It takes years to establish but can be broken in matter of days. Moving the productions back to USA isn't easy/simple and there will be high price to pay.  
Spatial Audio Raven Preamp
Let's hope the Tariff war will end soon through negotiation and co-operation.   
What contributes most to a change in how an amplifier sounds?
HI alexberger, Understand that you have tried various ways for improvement on the cathode RC bias circuit. I experimented using the simple transistor/mosfet shunt regulator to replace the RC. First of all, the bias voltage can easily be adjusted.... 
Lamm or Allnic Preamp
First of all, I havn't audition the Allnic L-6500 line amp. However, I built my own 5845 single stage line amp with Monolith line output transformer. The result is really good with superb clarity and musical. The L-6500 is with similar design tha... 
Friends hi-fi system not very good, what do you do or say?
I would simply say to my friend that he/she shall audition the audio system from his/her friends to realize what good sound should be.  
???What's The LEAST Expensive "End Game"Amplifier You've Ever Heard???
I cloned the Mission 776 preamp. I found it sound so good indeed. I don't have chance audition the Mission 777 power amp.  Maybe you should try this Mission amps if you have chance.  
Sun Valley vs Sun Audio 300b
Why not take a look at the Audio Note Kit???? Johnny  
Recommendation for tube preamp
I would suggest you shall look into the Raven preamp by Lynn Olsen. Lot of information from this post:- https://forum.audiogon.com/discussions/spatial-audio-raven-preamp  
Counterpoint SA-1000 Phono Stage Issue
After moving the shunt to 3-4 position, you would need to switch the Selector to other Phono position in order to get the signal through.    
Counterpoint Service Manuals
https://www.hifiengine.com/manual_library/counterpoint/sa-8.shtml This site has the schematic of SA-8  
Counterpoint Service Manuals
https://www.diyaudio.com/community/attachments/solid2-sm-pdf.1247384/ Solid 2 service manual  
Anyone at home at Krell?
A friend of mine returned his KSA-300 to Krell for repair. Unfortunately, he has been waiting for a quote over 6 months now. No response from Krell. This is very disappointing. Johnny  
Replacing Capacitors, I Don’t Wanna!
That's real BS.   Usually, the electrolytic capacitor in audio amplifiers would last many years. The new ones are very reliable. I used the LCR meter to check the ESR, dissipation factor, and capacitance to confirm the condition of the Capacitor...