On Duty
For one more time, i'm impressed from the performance of these regs.
The sound character is same to the Salas HV regs i already use, which can be described as fast and solid, but this area is already covered by other builders.
There is plenty of room for tuning on the Vref C102,202,302 and Zobel R 107,207,307 capacitors. The 15μF EVOX MMK gave emphasis to the mids and sounded restricted to the sides of the audio band. I'm now trying some 4.7μF MKP4 i had in hand and they sound much more balanced.
The oven is on, time for cooking! Thanks Salas for the design and Tea-Bag for the GB.
For one more time, i'm impressed from the performance of these regs.
The sound character is same to the Salas HV regs i already use, which can be described as fast and solid, but this area is already covered by other builders.
There is plenty of room for tuning on the Vref C102,202,302 and Zobel R 107,207,307 capacitors. The 15μF EVOX MMK gave emphasis to the mids and sounded restricted to the sides of the audio band. I'm now trying some 4.7μF MKP4 i had in hand and they sound much more balanced.
The oven is on, time for cooking! Thanks Salas for the design and Tea-Bag for the GB.
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Marra,
Selectronic is very lousy in replying emails from my experience (2-3 days delay). But shipping good and fast. Maybe a bit pricey for my country (20eur.)
That's why I've turned to these guys hifispot168 | eBay. Nothing to complain and it came faster then expected.
Selectronic is very lousy in replying emails from my experience (2-3 days delay). But shipping good and fast. Maybe a bit pricey for my country (20eur.)
That's why I've turned to these guys hifispot168 | eBay. Nothing to complain and it came faster then expected.
in general, or are you referring to something in particular? perhaps the big *** film cap with 1mOhm in the spec? the 100uf one says 0.5mOhm, I dont know what frequency they are quoting that at, if its DC, its intended use, then its pretty impressive. measuring Rms of a sine wave before and after it perhaps? kinda like transconductance. not sure.
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manamanam, are they conrad channel heatsinks you have used there?
No, they are 100x150x25mm sinks, made from a local Greek company.
Nice that you had success. Do the sinks get warm enough?
Absolutely yes!
I know, i have to measure the current drawn from the I/V stage, i'm sure i'm running these regs >200mA over load current consumption.
More on Cref and Czobel..
I tried bypassing the MMK and MKP with 0.01 MKP1837. Speaking subjectively, bypassing gives you at first a sense of improvement but after a while you realize that they confuse the sound.
Now playing with some Sonicaps..
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Maybe it can play even better without the extra small shunt regs after it?
Probably yes, but there are like 5 regs there. Four 3.3V and one 1.2V.
Maybe it' s time for a new low current, DC in compact version
Maybe it can play even better without the extra small shunt regs after it? Or worse.
Yes, these are shunts. And the other small horizontal board has 2 shunts.
Maybe it' s time for a new low current, DC in compact version
I wouldn't specifically target no one's work for upgrades and such. Its you people finding applications for the reg, me I haven't seen a Buffalo in the flesh not once in my life.
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Are they integral to the main boards? If pulled out what happens? No way to bridge their lines to load? Or are optional add-ons and the system has easy way to be configured with and without them?
The 3 vertical shunts are optional add-ons that bypass the 3 onboard series regs. The horizontal 2-reg board has no onboard stock regs.
It's very easy to remove all of them and power each line from other regs.
btw manamanam, is your forum handle a muppets/sesame street reference? some may know what i'm talking about... doo... doo.. dododoo...manamana....doo dooo dododoo
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btw manamanam, is your forum handle a muppets/sesame street reference? some may know what i'm talking about... doo... doo.. dododoo...manamana....doo dooo dododoo
Right to the point!
Sesame street- MANAMANA - Original 1969 version
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