hugo said:Hi,
all leds are only red when signal is sent to the mixer...whereas i ordered green/red leds...How to correct this ?
buckethead said:Flip the polarity of the leds?
hugo said:I finished mine, what you should except is very clean sound, no coloration..it makes its summming job great...
but of course, even just one cap or one tube on a compressor will add much more color, so just expect good analog summing, it is not a magical box who changes a bad mix to a top notch one..but it is a great heart for a good studio. Also, it is not a cheap project at all, be ready to do metal work, and to find your own way for some mounting... I'm happy with mine, but i would not build a new one and if i build a new studio, i would consider the summing at the end...Hard to recognize this, but my 500eu ssl bus comp on parallel is more useful to improve a mix..than every summing (my daw summing is not so far from my analog summing, i can not make the difference on a blind test)..
digrecording said:I've had mine up and running since June. I'm actually amazed at how quiet it is. That's with all 24 channels enabled and faders all the way up. I don't have any actual measurements (will try to run some when I get a chance) but with it hooked up to the 24 outs of my Symphony i/o and running through my Sound Skulptor MC624 master section turned all the way up I have a hard time telling the difference between muted and un muted. I've worked with several of the legendary large format consoles in my time and the DR-2402 is by far the quietest mixer I've ever used.
I'm very interested in all the different op amp flavors out there. One of the really cool things with the 2402 is the ability to load it up with different pairs of op amps. You can then take a stereo mix and easily compare pairs of different op amps by just switching your output. Right now I have it loaded with stock API 2520s on 1-2, Scott Lieber Red dots on 3-4, A pair of op amps recommended by Tat with nos can transistors (very nice) on 5 - 6, and a pair of the Sound Skulptor 2520s on 7 - 8. The rest of the channels are APP992s (also very nice) and the summing board is API 2520s. I've been planning to write an article on my observations of the various flavors but I type kind of slow and have been too busy recording lately to do much else.
My studio partner also has a nice home setup with 24 channels of API 8200 into a 7800 master section and he has raved many times to me about how remarkably similar the 2402 sounds and how nice it is to have such a similar sound at both locations.
To be sure, I would not recommend this project for beginners. You're going to need good electrical and mechanical instincts to complete one of these. It is not "everything you need in one box" like the CAPI or Sound Skulptor kits. That said I am super happy with mine and had a lot of fun building it. It wasn't cheap but I'm not looking to sound cheap and it was still considerably less than similar products (Neve 8816, Burl Vancouver, API8200) while providing a lot more flexibility.
Admittedly I am a tinkerer and love fixing, modding and building my own gear. Many of the mass produced options out there are mostly smd and god help you if you want to work on them without full schematics and good smd skills.
digrecording said:I'm very interested in all the different op amp flavors out there. One of the really cool things with the 2402 is the ability to load it up with different pairs of op amps. You can then take a stereo mix and easily compare pairs of different op amps by just switching your output. Right now I have it loaded with stock API 2520s on 1-2, Scott Lieber Red dots on 3-4, A pair of op amps recommended by Tat with nos can transistors (very nice) on 5 - 6, and a pair of the Sound Skulptor 2520s on 7 - 8. The rest of the channels are APP992s (also very nice) and the summing board is API 2520s. I've been planning to write an article on my observations of the various flavors but I type kind of slow and have been too busy recording lately to do much else.
ZekeProductions said:Also has anyone fixed the PSU heating issue? Thanks for your help
qmp audio said:This is from Facebook:
“DR-2402 API SUMMING MIXER UPDATE - PSU OVERHEATING ISSUE
Use the 3A regs LM350T & LM333T !
They are available on ebay “
MrBlomski said:Not yet, by 1.5 amps is no power headroom so to speak.
I am going to make a whole other power supply. Higher amp and quieter.
Btw. Wiring is in the manual.
If you want I can make some pictures. I am continue the build after a year. Almost done.
qmp audio said:This is from Facebook:
“DR-2402 API SUMMING MIXER UPDATE - PSU OVERHEATING ISSUE
Use the 3A regs LM350T & LM333T !
They are available on ebay “
MrBlomski said:Not yet, by 1.5 amps is no power headroom so to speak.
I am going to make a whole other power supply. Higher amp and quieter.
Btw. Wiring is in the manual.
If you want I can make some pictures. I am continue the build after a year. Almost done.
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