The Official Sequential/Oberheim Forum

SEQUENTIAL/DSI => Prophet-5/Prophet-10 => Topic started by: Nitrox on December 20, 2020, 04:17:55 AM

Title: Rev4: Very high output and adjusting levels of presets?
Post by: Nitrox on December 20, 2020, 04:17:55 AM
Hi!
Proud new owner of a P5 Rev4 :-). Is it normal that the output of the Rev4 is very, very high? When I plug the headphones in, I can't listen to anything higher than "5" on the volume without damaging my ears. Also the line level input on my Roland Cube monitors starts to clip when going beyond 4 or 5. Wonder if this is normal or if I have a faulty unit.
And: Is there any way to adjust the levels of the presets to match each other so that I have no volume jumps when switching presets?
Thanks!
Peter
Title: Re: Rev4: Very high output and adjusting levels of presets?
Post by: Analog Prophet on December 21, 2020, 04:21:50 PM
It has normal audio output. Have not tried the headphones out. The relative level is determined by the level of the VCAs (the mixer section).
Title: Re: Rev4: Very high output and adjusting levels of presets?
Post by: synthRodriguez on December 22, 2020, 05:40:57 AM
Yes, it's a pretty hot output.

With measurement into a 10k ohm load with the triangle wave only on, mixer cranked, amp section sustain pot and output volume on full, I'm measuring a 3 dBm (893 mV peak-to peak) output.

For comparison, the CS-80 with the same setup has an output of 0 dBm (632 mV p-p). Setting the P10 Volume pot at 8 brings it down to 0 dBm.

In my experience it's hotter than most of the synths in the studio, but as long as it's clean (which it is), no problem!

EDIT: Thought I'd check the noise floor on the P10. On the CS-80 it's around -65 dBm, on the P-10 I'm getting around -78 dBm cranked. Very nice!