rasp sound

Discussion - HT-1 amplifiers
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cybix
Posts: 1
Joined: Wed Oct 26, 2016 4:36 pm

Wed Oct 26, 2016 4:49 pm

After connecting:
Guitar Out -> Zoom 802.1u -> BOSS RC-3 -> to the Input of Blackstar HT1-R, it destroys the amp.
The amp only makes rasp Sounds.

I checked the valves - they are all right. I think the input circuit has a damage? Up left corner of the circuit diagram: Any ideas?
http://bit.ly/2f7vHbI

Is there a support forum for techs/engineers?
Do you have a repair plan?

regards

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thephantum
Posts: 1160
Joined: Wed Jan 29, 2014 7:42 pm
Location: Virginia, United States

Wed Oct 26, 2016 6:51 pm

What do you mean by checked the valves? We're they tested by a calibrated tube tester? And/or did you swap them out for known and validated good ones?

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