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Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc.

Salas DCG3 preamp (line & headphone)
Salas DCG3 preamp (line & headphone)
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Old 23rd April 2018, 06:44 PM   #2941
RCruz is offline RCruz  Switzerland
nhinstruments
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Salas DCG3 preamp (line & headphone)
Perfect

I have 7.5mA Idss BF256 and with the 150r these should produce 4.2mA CCS... is it enough or should I reduce r to 100ohm so to have 4.8mA CCS in the upa tail ?
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Old 23rd April 2018, 08:21 PM   #2942
thejekocomputer is offline thejekocomputer
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Dear Salas, thank you very much for this project, I've been using your preamplifier since June 2017 and I love it, it surprises me how much detail it gives me, the bass is deep and the voices are like a very fine grain. Today I use it with a headset sennheiser hd555, but I would like to change it, I anticipated spending about 300 euros to get a good headset closed, because I listen to music alongside my wife and I like high volumes and with headphones open I realize to disturb. I wish they were well balanced, easy to bag but I can not choose: I need a hand. Thank you so much for your help.
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Old 23rd April 2018, 09:16 PM   #2943
Salas is offline Salas  Greece
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Salas DCG3 preamp (line & headphone)
That's a very nice build. Congratulations. Have you looked in the Oppo PM-3? OPPO PM-3 Closed-Back Planar Magnetic Headphones

For more affordable dynamic the AKG K553 MKII maybe. K553 MKII | Closed-back studio headphones
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Old 23rd April 2018, 09:24 PM   #2944
Salas is offline Salas  Greece
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Salas DCG3 preamp (line & headphone)
Quote:
Originally Posted by RCruz View Post
Perfect

I have 7.5mA Idss BF256 and with the 150r these should produce 4.2mA CCS... is it enough or should I reduce r to 100ohm so to have 4.8mA CCS in the upa tail ?
Reduce for 4.8mA
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Old 24th April 2018, 05:20 PM   #2945
RCruz is offline RCruz  Switzerland
nhinstruments
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Salas DCG3 preamp (line & headphone)
Quote:
Originally Posted by Salas View Post
Reduce for 4.8mA
Thank you
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Old Yesterday, 10:33 PM   #2946
thejekocomputer is offline thejekocomputer
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Quote:
Originally Posted by Salas View Post
That's a very nice build. Congratulations. Have you looked in the Oppo PM-3? OPPO PM-3 Closed-Back Planar Magnetic Headphones

For more affordable dynamic the AKG K553 MKII maybe. K553 MKII | Closed-back studio headphones
Dear Salas, thank you for the suggestions, I have tried to find the Oppo but is very expensive and here in Italy there is only one who sell it, also the akg seems to be very hard to find. Do you have some other good choice? Sorry if I do all theese request but I like your work and I like your opinion. Thank you in advance.
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Old Yesterday, 11:39 PM   #2947
Salas is offline Salas  Greece
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