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Post by ChrisB on Mar 22, 2015 22:00:37 GMT
No, it was HFN.
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Post by MartinT on Mar 22, 2015 22:01:18 GMT
Oh yes, I read it a while ago thanks.
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Post by jp56 on Jul 2, 2015 5:07:31 GMT
Hello ,
i have always sometimes the clicks on my SPM 1200 E but it do not increase
luckily Pinkie talk to Chord for this probleme because i will be stress by that .
i make confident to Chord .
Thank you very much to Pinkie still
Excuse my bad English
JP
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Post by pinkie on Jul 2, 2015 5:38:26 GMT
For those not familiar with French Toujours= always or still In this case I think JP means still Edit : actually he meant still the first time and always the 2nd! You are welcome JP  |
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Post by MartinT on Jul 2, 2015 5:49:25 GMT
Sorry you're still having trouble with it, JP. What was Chord's reply?
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Post by pinkie on Jul 2, 2015 7:00:20 GMT
Since Jean-Paul may struggle with the translation again, best I can remember (I can't find my notes or email to JP) The problem wasn't a problem. On power up , or when touching the grill or power button, there was a faint ticking noise. This wasn't a noise on the signal - it was a mechanical noise from the amplifier - too faint for JP to be able to record when I asked him to send me a recording. Chord's technical department explained that there were several variations to the heatsinks used, and that metals expand and contract at different rates. The faint ticking, briefly whilst the amplifier was warming up, were due different metals expanding at different rates. Their view was that if the condition was stable, and not deteriorating, then it was nothing to worry about. I suggested to JP that maybe, like a fine wine, the Chord is best served chambre'd Btw JP, if you want a silent amp, you should hear the Benchmark. It is so quiet its scary. You can hear nothing from the speakers even at full gain, and the box itself is silent. The only way you know its on is by the lights. (And it powers off if it hasn't detected a music signal for 45 minutes). Before you say it Martin - bottom of page 11 of the manual "No Warm-up Required ...the AHB2 reaches its full rated performance very quickly. Full rated performance is reached in less than one minute" (Much less, I am assured) Edit: Oh poo. I may not be able to find my notes, but my post of Jan29 on this thread gives the same information - a bit fresher in my mind!!! |
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Post by MartinT on Jul 2, 2015 8:19:36 GMT
Thanks Richard for helping JP on the Chord issue.
Hmm, virtually all power amps I've ever tried take more than one minute to settle into their final performance, but I can't know until I've tried one obviously. I don't like timeouts either, but 45 minutes seems ok.
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Post by pinkie on Jul 2, 2015 8:58:11 GMT
Thanks Richard for helping JP on the Chord issue. Hmm, virtually all power amps I've ever tried take more than one minute to settle into their final performance, but I can't know until I've tried one obviously. I don't like timeouts either, but 45 minutes seems ok. It's designed for pro use. It has a 12v trigger connection too. You can have it linked to other amps and dacs and turning one on or off turns all on or off. Benchmarks comments are based on measurements - which don't need to "relax" If things seem to sound different at minute 5 of listening compared with minute 1 of listening, with the best will in the world it would be really hard to judge if that was the equipment or the listener that was warming up |
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Post by jp56 on Jul 2, 2015 14:07:29 GMT
Thank you very much for your explanations
indeed the condition are stable , the only thing is that the other SPM 1200 make no noise but Pinkie explain me that the heatsinks are make from differents metals
this explain the difference between twice SPM 1200 E .
Thank you very much Pinkie and Martin .
Soon
JP
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Post by ChrisB on Jul 2, 2015 17:36:21 GMT
Hmmm....
Full rated performance isn't the same as 'sounding at its best' now, is it? I suspect most gear would be at full rated performance pretty soon after switch-on.
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Post by pinkie on Jul 2, 2015 21:42:53 GMT
Yes but sounding at its best is subjective. Nobody compares à half hour hot amp with a cold one when they make that comment
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Post by ChrisB on Jul 2, 2015 21:56:22 GMT
That's OK I only listen subjectively.
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Post by MartinT on Jul 2, 2015 22:44:33 GMT
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Post by jp56 on Jul 26, 2015 16:06:04 GMT
Hello ,
The clicks was more important today and i have seen when i put on the SPM 1200 E when it is hot there are no clicks , i have made the experience twice today and when the SPM 1200 E is hot all is ok , the noise is only when i put on the SPM 1200 E cold ?
jp
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Post by pinkie on Jul 26, 2015 18:22:49 GMT
That makes sense. It's just thermal expansion whilst warming up
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Post by jp56 on Sept 2, 2015 9:04:35 GMT
Hello everybody,
i want to speak here of a thing i had when i had only one SPM 1200 E ,
when i put on the volume about 40 50 the blue leds inside the unit pull down in intensity ,
since i have a second SPM 1200 E for bi amplification there is no probleme with the intensity of the leds when i put on the volume ,
i have speakers difficult to drive and perhaps one SPM 1200 E was a little just .
What do you think of that ?
Excuse my little English
JP
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Post by John on Sept 2, 2015 19:30:24 GMT
Sounds like it was drawing a lot of power
What speakers are you using
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Deleted
Deleted Member
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Post by Deleted on Sept 2, 2015 21:02:19 GMT
Sometimes the ticking is a Flyback converter used on standby and low power use, it caused by the PSU going into burst mode and the tick is the gap in the transformer clicking the spacers.
To cue this some are dipped but if the dipping is not done correctly you still get clicking.
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Post by jp56 on Sept 3, 2015 12:48:08 GMT
Hello ,
i use BC Acoustique Nil speakers ,
the leds pull down in intensity was to much volume ?
i don't understand what explain Colin 14
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Post by MartinT on Sept 4, 2015 6:15:15 GMT
Hi JP
You must be burning a LOT of power! My Chord LEDs are much dimmer than when new and they offered to replace them the last time I sent it for a service, but I refused since they are just internal lighting and I don't look down inside the amp when playing music! However, they do not vary with the music, indeed the power draw even when I'm playing very loud is no more than about an extra 100W when I look at my regenerator's meter. My Chord is never working very hard even into my 4 Ohm speakers.
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