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imhififan

Responses from imhififan

Troubleshooting Rega Brio-R Amp Issue
Swap the RCA input cables from the left channel to the right channel to see if the problem is upstream.    
Can a tube amp be damaged by a speaker switch?
The Octave Audio amplifier is not a traditional tube amplifier design, it uses protection circuitry to protect its output from low impedance or short circuits, eliminates multi-tap speaker terminals, and behaves more like a solid state amplifier t... 
XLR Turntable
MC cartridge and almost all MM and MI cartridge except those wired its negative to ground are balanced device. If you’re looking for a turntable with cartridge and XLR connection for under a grand, just shop for a turntable and cartridge that is w... 
Can a tube amp be damaged by a speaker switch?
I actually have a Leben and during the course of modding it, one night I accidentally left the dummy load off and ran pink noise. Next morning..I freaked out...yet, no problem with it at all. Many commercial tube amp can survive without load co... 
Can a tube amp be damaged by a speaker switch?
This is amplifier dependent. Almost all solid state amplifiers are stable into no load, but not all tube amps were. Check with the vendor. Yes! Almost all solid state amplifiers are stable at no load, except those without a Zobel network at t... 
Can a tube amp be damaged by a speaker switch?
What is the potential damage? If the load accidentally disconnected from the tube amp while playing, The inductance of the output transformer will produce a large fly-back voltage, this is lethal for components in the amp, it can damage the out... 
Amplifier Specification questions
Interesting it does less class A into 4 ohms. The amplifier bias current determine the output power of class A operation. For example, an amplifier can provide up to 8 Watts of class A power @ 8 ohms load before it switch to class B operation... 
does anyone have a Schematic for a CM Labs 911 amplifier
https://forum.audiogon.com/discussions/does-anyone-have-a-cm-labs-911-schematic  
Adjusting Infinity IRS servo controller
Upload the picture into your system page and post it here.  
External Tube Amplifier Power Supply Connectors
Audio research use TE Connectivity AMP Connectors CPC Series 1 connectors. Rated @ 600VDC.    
I’m getting a hum in my integrated tube amp and it’s bugging me alot
Disconnect the speakers (and everything else), if you still hear the hum, it's obviously the amp, and likely transformer noise. Please check with the manufacturer if it is safe to power ON this amplifier without speakers connected!    
Is there a way to switch one set of speakers between two sound systems?
Is there any way to switch a single set of speakers between two different amplifiers without compromising sonics? Switching would be done often, so the mechanism would have to be easy -- preferably with a remote or the twist of a dial or even don... 
Right way to connect a 2nd “extension” center channel speaker?
Should I take the wire from the AVR to the Center speaker, and splice in the longer wire to the 2nd Center speaker? In my opinion, this is not a good idea because the center channel doesn’t have all the signal for 5.1 sound. If the Sony STR-DE... 
Bi-Amping McIntosh MC303
The traditional approach to bi-amp/bi-wiring speakers is to connect the treble and bass to the same impedance tap at the amplifier output. Since the Blade is rated at 4Ω, you can connect both to a 4Ω tap. You can also experiment by connecting bot... 
Tracking down a hum.
I noticed a hum from my tube pre amplifier, a Rogue Audio Model 99 (line stage only)... I'm using the Rogue to send a signal to a Musical Fidelity X-P200. BTW, the problem may be with the power amp, how do you come to the conclusion that the pr...