DP03 Can't disable reverb

[Sirio]

Hello Community,

I own a DP03 and today when I was recording I noticed a strange issue.
While the reverb knobs set to 0 my performance is recorded with a deep reverb.
I tried to hear my electronic drums directly through headphones and from there I hear fine.
I tried to reset the Tascam from preferences/initialize and the problem is still there.
I tried to export a track to figure if it is only heared from Tascam but on my pc the track has been reproduce with the deep reverb.

I don't know if it is an hardware issue now or there is something I can do.
It has the last firmware and this is the first time I have this issue.

 

[Sirio]

The problem was caused by a stereo jack 6.3 cable.
I tried a mono cable and there is no reverb. But now I have a mono channel splitted in stereo...
Is this normal?

 

[Phil Tipping]

Hi Sirio, welcome to the forum. I don't have a DP03 but there isn't enough detail in your question to attempt an answer, e.g. when you say the fault was a stereo cable, where in the signal path do you use this cable? Can you describe (or preferably sketch out) the exact signal path you used for the recording and playback, and what settings you used?

 

[Sirio]

I have a electronic drum, it outputs to the dp03 via a stereo cable in the 'line in' jack 6,3.
I have the same deep reverb effect when I link my smartphone with a standard stereo aux camble to the line in of the dp03.
I used instead a proel 6.3 mono from the edrums to the dp03 and it sounds fine but every channels are now panned to the middle.

 

[Phil Tipping]

Thanks for the extra info. The line inputs on the DP03 can accept unbalanced signals via TS plugs or balanced signals via TRS plugs, but in either case they are mono inputs, not stereo.
If you really want to record in stereo, you need a splitter cable which converts a single stereo output into two separate mono TS plugs which you can connect to two of the inputs on the DP03.

If you connect a stereo signal on a TRS plug to a TRS socket which expects a balanced mono signal, it will sound odd as the left & right signals are being treated as hot & cold signals for the mono input. If that odd sound is what you mean by 'deep reverb', then that's the cause of the problem.
When you switch to a mono cable, you are only hearing one side of the stereo signal so the 'odd' sound will not be present.