Phono amp gain too high? (EAR 834p)


Hi everyone,

I have long been interested in trying the EAR 834P, and I recently came across the old Stereophile review of it.  In the measurements section, the gain for MM carts was 49.2db and 68.2 for MC.  That seems to be an inordinately high gain if I'm not mistaken.  I don't  know how to determine whether this would overload my integrated amp.  I am running an LFD LE V and a Clearaudio Maestro V2 (3.6mV).  I can't find specs on the integrated as far as gain and input sensitivity.  As I understand it, there is no active preamp in the LFD, but I can't even confirm that.  Is there someone with better technical understanding who can help?   

Thanks for your thoughts,Scott
smrex13
By the way, most of the difference between the VTPH-1mc and the -2 is in the mc section, which was significantly revised and improved in the -2 version. The difference between the -1mm and -2 when using a mm cartridge should be minimal.
Scott,
FYI, My friend had an EAR and it had a volume control to lower the gain. He had it plugged into his power amp without using a preamp. He was using a 5mv cartridge and it sounded great ! If you buy one used make sure it has a variable volume,as some of them do not.
yogiboy  " ... If you buy one used make sure it has a variable volume,as some of them do not."

A volume control on a phono preamp? That doesn't sound like a good idea - it's likely to lower the system's s/n ratio. It's better to properly match a phono preamp to the line stage so that the line stage can't be overloaded. Then, adjust volume from the linestage.

Unless I’m mistaken (a real possibility), the setting of the volume control does not infact determine the gain of the amp, but instead attenuates the phono amp’s full output---not the same thing of course. I believe the gain of the amp is set, the full output of the circuit is sent to the volume control, which attenuates it to varying degrees depending on where it is set. The volume control doesn’t decrease the gain of the circuit, only attenuates the full output of the amp. A look at the schematic will provide the answer---look for where in the circuit the volume control is located; if it’s before the amplification is achieved, then yes, it may lower the gain of the amp. But I doubt it that’s where it is. If it was, EAR’s published specs for the amp would show variable gain. The variable output would provide a solution to the problem of the phono amp overloading the line stage, however.