Re: John, how does the preamp gain factor in?

Vinyl Asylum

Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ.

In Reply to: John, how does the preamp gain factor in? posted by Mr. Black on September 14, 2006 at 06:50:12:

I think the rule-of-thumb is that you want your phono section to amplify nominal cartridge output to around 300-mV so that its volume is similar to line level components such as CD players and Tuners. To amplify 0.5-mV to 300-mV requires 55.56-dB gain. Your CJ PV-10A with its 48.5-dB phono gain would provide only 133-mV, which means that you would need to turn up volume higher for phono than for other sources. However, you should certainly have sufficient overall gain as a result of the CJâ€™s 18-dB line-stage gain. Therefore, if you donâ€™t mind having a different volume setting for vinyl versus other sources, it probably doesnâ€™t make much difference.
You are correct that the CJâ€™s 18-dB line stage gain is somewhat higher than some other preamps. My preamp has two line-stage gain settings of 4-dB and 14-dB. I use the 4-dB setting and I cannot turn my volume control fully open for any source including phono. Normally loud listening for me reaches only about -6-dB on my line-stage volume control.
Best regards,
John Elison

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Follow Ups Full Thread

Topic - Gain for low output cartridges - Hujo 17:31:09 09/13/06 (9)

Re: Gain for low output cartridges - Joao 23:04:51 09/13/06 (3)

Can someone explain - Mr. Black 06:31:58 09/14/06 (2)

Re: Can someone explain - John Elison 07:47:30 09/14/06 (1)

Thanks for - Mr. Black 10:33:47 09/14/06 (0)

Re: Gain for low output cartridges - John Elison 17:47:05 09/13/06 (4)

John, how does the preamp gain factor in? - Mr. Black 06:50:12 09/14/06 (1)

Re: John, how does the preamp gain factor in? - John Elison 07:31:02 09/14/06 (0)

Re: Gain for low output cartridges - Listens2tubes 18:26:19 09/13/06 (1)

So, what do you conclude from the KABUSA.com gain calculator? (nt) - John Elison 20:00:39 09/13/06 (0)

Follow Ups

Re: John, how does the preamp gain factor in? - John Elison 07:31:02 09/14/06 (0)

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