Yamaha C-50 pre-out voltage range

[Jeffro62275]

Long time lurker, first time poster.

I recently acquired a C-50 pre-amp that I want to use as a MM/MC input for my Pioneer SX-1080 running thru my AUX input on the 1080.

I realize that this can be dangerous because I could overload the AUX input so I am taking things very slowly.

I played a record thru the PHONO 1 stage on the 1080 and swapped the record to the TT hooked up to the C-50 and adjusted the PRE volume until I reached an "equivalent" level thru the speakers. I'm inter-connected between the 1080 and C-50 with a good quality 10' RCA cable but I know, with that length, I will lose some gain. I was kind of surprised that I needed to turn the C-50 volume up to about 11:30 to reach equivalent volume with the same record playing thru PHONO 1.

From what I've been able to find on the inter-web, most CD players and DAC's have a output voltage of around 2V. Short of knowing what the output range of the C-50 is, I'm guessing that measuring the voltage with an oscilloscope and signal generator will be my only safeguard. My SX-1080 is in really good shape and I REALLY don't want to blow the AUX board.

Thanks in advance!!

 

[Chris Brown]

Why are you trying to connect the Pre-amp output ("PRE OUT") on the C-50 to the AUX input on the 1080? If you're just trying to use the C-50 for it's phono preamp then why not use one of the Tape outputs ("REC OUT") on the C-50 instead of the Pre-amp outputs?

 

[Jeffro62275]

That's a very good question. I guess I just try to over-complicate matters. I'll give that a try.

Thanks!!

 

[Jeffro62275]

That works just fine. I sometimes wonder why I spent so much money (not that much really) on my education.

Sometimes the most elegant solution is the simplest available. But then again, sometimes I can't see the forest for the trees!!

Thanks again Chris.

 

[avionic]

Welcome aboard Jeffro

 

[Jeffro62275]

Thanks!

When I get a chance, I'll post a picture of my setup.

I'm currently running a SX-1080 thru HPM-100's. I'm feeding them with an RT-707 and four turntables.

I've got a box stock PL-518 that is in pristine condition running a Shure M-95ED with a VividLine stylus, another PL-518 that I just refurbished with a custom maple & lacewood plinth (Stanton 681EEE with Jico Shibata stylus), a Fluance RT-85 (2M Blue) and a Technics SL-23 that plays just fine.

I was able to have all four tables connected after the addition of the Yamaha C-50.

 

[Jeffro62275]

Here are some pics of my current setup. I should probably post this in the Pioneer section but I got the answer to my question here first.