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Old 24th August 2014, 02:29 PM   #1
Salas is offline Salas  Greece
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Default Reflektor-D builds

Dedicated thread on Reflektor-D building. Systems showcase and tech tips exchange.
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Old 24th August 2014, 06:24 PM   #2
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Old 25th August 2014, 11:52 AM   #3
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Just build 5V out.
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Old 25th August 2014, 12:58 PM   #4
Salas is offline Salas  Greece
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Ah, home brew. Let us know if you can distinguish any influence when you will replace the previous in your application. Small sinks though, gonna get hot. Use 105C for the middle cap smack up to the sink if it isn't a high temp cap already.
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Old 25th August 2014, 02:54 PM   #5
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It already 105c . I just use 180-200mA CCS, and sink are acceptable on my test
Its hard to distinguish any influence between Ref-D, Low Voltage salas shunt reg series regulator LM723 , and i blame it to LDO regulator/post regulator (MIC502-3x) on my ESS9023 DAC. Or my system already reach it limit so a can't distinguish any different.
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Old 25th August 2014, 03:29 PM   #6
Salas is offline Salas  Greece
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Try listen for more sound outside the speakers to the left and right maybe.
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Old 26th August 2014, 12:53 AM   #7
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I build a couple of Reflektor-D's; one to supply a Buffalo IIISE, the other to power the oscillators on my Acko SO3 isolator/reclocker/clock board. These replace 2 BIB's, with inline ultra low noise LDO's. I need to spend some time listening to it. Bass & Mids have improved in clarity & tone. Treble is interesting; it's correct tonally, but seems recessed. This may be more about the previous solution being forward or bright in the treble region.
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Old 26th August 2014, 09:50 AM   #8
Salas is offline Salas  Greece
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Was it easy with the PCB building and the instructions, all clear? Let it on power for a good while so the lytics to fully form. In the treble maybe it removes the last traces of glare, but if eventually you will feel its not exactly what you aspired to in that region in your app, let me know, there is a variation instead of the R6 1K load, it can go active replaced by a FET. That gives a different tone.
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Old 26th August 2014, 03:15 PM   #9
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Yes Salas - it was very easy to build. A couple of manual nits.

* J1 isn't actually listed as a component to be installed. It's discussed and when you wrap your head around the circuit it's clearly needed. I'd suggest it be listed in the parts to install section.

* The table showing R1 / current is helpful, but I'd amend it to address the build max. It's showing 450mA as max with a 1Ohm resistor.
* I'd add a section for common build configurations. I think this is going to be a popular PS for powering the BIII. Even with the treble, it's clearly a step up over my previous efforts to power the DAC.

As always Salas, thanks for sharing your creations with all of us. Your work has brought about untold hours of enjoyment; both building and listening. You deserve my thanks too Mike; for your help in making these available. I will give it time for the lyrics to form. We might have to experiment with a FET at R6 just to compare :-)
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Old 26th August 2014, 03:43 PM   #10
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If we are going to discuss build guide additions - we should talk maybe more about J1's IDSS and it's source resistor Rr.

For those who purchased minikits. The resistor kits will include 47,62,82R resistors.
So for
<4ma - 47R
4-5ma-62R
5-6ma-82R
6ma+-100R

J1 was measured with a value on it. For the few 6ma plus ones, a 100R resistor should be right in the transistor bag.

Salas, correct me if I am off a little here.

Tea
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