Biyang RV-10 Tri Reverb

I think we are here in the presence of a digital pedal.
Connectivity is standard, except for battery power that does not disconnect (yes it is rather nerd)
Changing the location of the negative wire is very easy to achieve.

UTILIZATION

Not truly possible need for manual
The choice of 3x2 different types of reverb is quite simple

SOUND QUALITY

Used with a low sound is correct, meets quite well the sound of the instrument, do not add too high frequencies.

OVERALL OPINION

I should say that value for money is excelent but it is down ...
FAILURE appears to be quite FREQUENT:
Symptoms: whistling noises chuttes, which sometimes happens to stop by connecting repeatedly food.
A correction is this failure: Replace transistor D331 by BS170 (next to the power plug).
Caution: this operation is delicate and is not feasible for everyone.
The circuit is double-sided, the welds are very small and close to each other.
To me this does not solve the problem truly possible.
The problem moves along the power used (battery, 12volt 9.10 ..)

Despite good preformances the sound level, I AGAINST this pedal is completely unreliable.

Made in China .... shame
(Small red square: side of a weld the other 2 on the other side)

Three reverbs available in this small pedal about 500gr: Hall, Spring, Room.
Mix, a time, all in stereo if needed.
True bypass.
The battery door screws
From the outside it looks very strong.
Completely stupid design of the power supply circuit, the battery powers the pedal jack plugged in or not, the effect on or off.
So basically the first time she had emptied a new battery in 4 hours even without the use ...

UTILIZATION

Config super simple, we choose the reverb, turn the knobs ...

SOUND QUALITY

Really not bad.
No loss of signal if not activated.

OVERALL OPINION

Rather mixed:
Even new when I opened the door to put a battery connector was already broken (pulled over ..). This beautiful to be under warranty I'm not paying 15 € for 5 minutes FDP soldering iron ... But it suggests the worst qualities about the tests performed upstream ...

A budget large battery or remove the battery when no longer used, even for a few minutes ...
Or for the more adventurous, open the beast and resolder the black wire to the right place:

3 types of reverb (spring room and hall) with their rglages
true bypass

UTILIZATION

the rglages are effective
redundant instructions

SOUND QUALITY

the reverbs are beautiful, natural look, kind vintage plutt

OVERALL OPINION

I have a Behringer RV600 to compare
the behringer is numrique has noticeable when you push the rglages to the extreme, a synthetic and quickly becomes unusable
printing quality is the gnrale Biyang: stronger (housing, knobs), more beautiful, no wind instrument compliance.