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EMT JSD High Output - Charlie Byrd Direct Cut

My JSD has about 1mV ouput. Yesterday i heard the direct cut and the trumpets on the A-side were distorted at the loudest peaks. With my second cartridge, an AT-OC9 there was no problem. My phonopre makes 64dB gain and plays with the EMT clean, because i have connected a headphone amp to it. I think the input of my Pass Labs INT-150 is overloading. Same on RCA-Inputs.... Pass tells me the INT can go until 8V RMS on the symm. Inputs.

It is the first vinyl with this problem, but i am a little bit confused about this.
128x128ninetynine

Showing 3 responses by ninetynine

ninetynine's avatar
ninetynine OP
135 posts
 
The Pass is ok and the tonearm cartridge combination too. I tested a headphoneamp at the outputs of the Audia. The Charlie Byrd song is played absolute fine. I connect a Focusrite Firewire Interface to the Audia Pre Outputs with XLR cables. This audio interface accepts +16dBu. It clips a little too!

I cannot lower the gain at the Audia Flight Phono. So i can only buy a quieter cartridge, but i love the EMT.

OK, this record has the only piece of music that maked problems.
ninetynine's avatar
ninetynine OP
135 posts
 
Ok, you`re right.

1. Chain
EMT JSD6 - Reed 3P - Audia Flight Phono (250Ohm) - XLR cable - Pass Labs INT-150 - Dynaudio C1 Signature

2. Chain
AT OC9 - Jelco 750 - same rest

With second chain this trumpet is played without distortion.
ninetynine's avatar
ninetynine OP
135 posts
 
The distortion is with RCA connection too.
The distortion is on the preamp out`s of the Pass too.
Yes, the distortion is generated in the Pass.

Do you read this?
I connect a Focusrite Firewire Interface to the Audia Pre Outputs with XLR cables. This audio interface accepts +16dBu. It clips a little too!

The meter of the Focusrite was red when the trumpet plays.
So the Audia had about 14V at the outputs.
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