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First One - mosfet amplifier module
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Old 6th June 2018, 12:53 AM   #4251
Tournesol is offline Tournesol  Belgium
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Quote:
Originally Posted by maxlorenz View Post
Well, it is the builder who wants a fan and we are tying to help...unrequested help perhaps...
maxlorenz, my remark was was not against your input. And there is cases where we cannot avoid fans because there is no allowance to use a larger passive cooler. That said, I would set their trigger temperature higher, for they fire on as few as possible. 55° or more ? Just enough to stay in the safe area of the power mosfets.
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Last edited by Tournesol; 6th June 2018 at 12:55 AM.
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Old 6th June 2018, 01:24 AM   #4252
smartx21 is offline smartx21  Brazil
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I use a continuosly variable speed PWM controller, with no audible noise, even at low levels. It starts at a speed that is comfortable for the fan to work with no harm.
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Old 6th June 2018, 02:08 PM   #4253
maxlorenz is offline maxlorenz  Chile
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Quote:
Originally Posted by smartx21 View Post
I use a continuosly variable speed PWM controller, with no audible noise, even at low levels. It starts at a speed that is comfortable for the fan to work with no harm.
C'est ce que je disais...

That is what I said...

No worries Tournesol.

Salut.
M.
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Old 4th July 2018, 02:31 PM   #4254
Bassivus is offline Bassivus  Serbia
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It's awfully quiet in here... Still no news on new modules?
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Old 4th July 2018, 02:53 PM   #4255
maxlorenz is offline maxlorenz  Chile
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Quote:
Originally Posted by Seth Hensel View Post

Also have 6 very large never used Conrad black anodized aluminum heat sinks for sale. 73mm x 151.5mm x 310mm $300.00 + shipping.
Thanks, dear Seth, for the wonderful pair of big heatsinks, at a fair price.
Recommended seller.

Best wishes,
M.
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Old 4th July 2018, 03:45 PM   #4256
Erlend Sæterdal is offline Erlend Sæterdal  Denmark
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First One - mosfet amplifier module
Quote:
Originally Posted by Bassivus View Post
It's awfully quiet in here... Still no news on new modules?
I am waiting too. Have 2 L modulets but Will rather wait for the New modules.
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Old 8th July 2018, 03:48 PM   #4257
hose4 is offline hose4  Slovenia
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I have some news.

I have seen and heard new prototypes with 8 transistors per channel and 600 Watts RMS.
2 variants of the last version are in the listening room. Hopefully we will get a locked version soon.

I have heard them on Focal Grande Utopias. They sounded truly amazing.

I hardly wait to get my hands on one.

DIY option will stay.
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Old 8th July 2018, 04:36 PM   #4258
Erlend Sæterdal is offline Erlend Sæterdal  Denmark
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First One - mosfet amplifier module
I must have a set if possible.
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Old 9th July 2018, 08:08 AM   #4259
J.M.K is offline J.M.K  France
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Unhappy 1.4M module fried, my fault completely

Hi !!

I just fried (half working, bad sound, 2 led lights still on) one V1.4M module of my dual-mono amplifier.

I don't think it's worth trying to fix it, or is it ?

What happened: I tried to change the usual feed (cinch/RCA-RCA cables from my preamplifier) to a stereo jack/cinch adaptor from my DAC-headphone output. Unfortunately that type of adaptor has a common ground on the jack plug .......... and I guess that one of the amplifier module didn't like it very much.
Completely my fault !!

I asked for new one from the FB site ............ I have no idea if they're still available.
Unless someone here has a spare one (in good shape) for selling ?
If so, please PM me !

Thanks in advance

JMK

PS: To make my case worse, I usually have an excellent ISO-Max ground loop isolator between my preamp and my amplifier (in order to electrically separate them completely), and I bypassed it for my stupid test ............
No excuse for me !

Last edited by J.M.K; 9th July 2018 at 08:20 AM.
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Old 14th July 2018, 03:44 PM   #4260
Theodosis O. is offline Theodosis O.  Greece
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Why is so bad to have common ground ?

Some preamplifiers have both grounds connected.

These can’t be used with F.O. ?
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