Thanks LGS (and everyone else)
Federman, this is just an observation, however you would I think do yourself a favour by stating this at the outset, rather than just dismissing sendy's post.
If the output filter is part of the module you sold (It doesn't look like it from the pictures of the circuit board) then you would do yourself an even bigger favour by admitting to having provided a faulty module (I don't know if it is on or off board).
Anyone selling something needs to have customer service in the forefront of their thoughts. We are a tough crowd here at diyAudio and sometimes just admitting a mistake, apologizing and offering the solution to fix it will win you more respect than you could imagine 🙂 If you aren't at fault then simply offering assistance to solve the problem will also do wonders.
You obviously strongly believe in your product, If you work with the people who are questioning it rather than against them I think you will be much more likely to succeed 🙂
All just in my opinion of course 🙂
Tony.
I've tried repeatedly to fix the module. The patch was no interest. Dealers said other material - ferrite for the output filter. Measurements under these conditions was not right.
Federmann, "perys amplifier" is off topic.... amplifier with yours PCB, but half supply voltage, large external supply filter caps, other compensation, other opamp, and 5x higher quiescent current !!!
I think it was a long way from HQQF to "perys HQQF"... 😕
perys | perys - hqqf_osc_klidovy-proud ? rajce.net
I think it was a long way from HQQF to "perys HQQF"... 😕
perys | perys - hqqf_osc_klidovy-proud ? rajce.net
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An externally hosted image should be here but it was not working when we last tested it.
Example specifications
Since this is apparently promotion and discussion of a commercial amplifier, I have moved this thread to the appropriate area. The OP and person selling amplifiers, Federmann, will keep all of his future promotions and discussion to this thread.
Clearly wrong. With +/-50V, you cannot get 1000W in 4 ohms. With +/-60V you cannot get 800W in 8 ohms.
Makes me wonder how real the other numbers are.
jan didden
Really? So how can the average then be 100W in 4 ohms and the max 1000W in 4 ohms? What's the difference between the 300W and the 1000W number? How did you measure it?
Same questions for 8 ohms, please.
jan didden
Attachments
300W and dynamic headroom 5dB = 1000W
100W and dynamic headroom 10dB = 1000W
B. Federmann
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With Federmann, you will digest many surprises, Jan...he has his own physical units and special definitions....🙄
Upupa means so called Federwatts 🙂
Like you could see one post above - "300W and dynamic headroom 5dB = 1000W".
Like you could see one post above - "300W and dynamic headroom 5dB = 1000W".
No comment perys | seznam alb ? rajce.net
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.