Perhaps? These boards dont seem to be as sensitive as Pearl 2 was to hum from transformers. Will be interesting to experiment more.
I agree, they look fantastic!
I agree, they look fantastic!
You're gonna have to call it De Pëarl Kölme the way you're going with your Müsik Tæste in bänds...
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I got a mail from Modushop about the "Black week".
I wonder if it would be possible to buy a P3 chassis set using the "Black week" discount?
Yes, stacking them the PSU comes even closer to the P3 boards than the 1-chassis solution.
I wonder if it would be possible to buy a P3 chassis set using the "Black week" discount?
Yes, stacking them the PSU comes even closer to the P3 boards than the 1-chassis solution.
Hi Max, sorry to disappoint but this new chassis will not benefit from our current Black Friday promotion
Does "kit" mean boards plus al semi's (which ones for Q1-Q4?) or boards plus all parts?
The kit will be all the parts required to build the boards. Transistors will be 2SK209GR Toshibas.
With a complete kit you can be assured it will work properly if you do your part.
With a complete kit you can be assured it will work properly if you do your part.
Beautiful build, beautiful chassis. I imagine the sound is also beautiful. Can't wait for the kit!!
Regarding the Noise Figure for 2SK209 I found this curve in data sheet:
dB ? .....how can this be compared to the nV/Hz-2 "figure"?
dB ? .....how can this be compared to the nV/Hz-2 "figure"?
Ok......Google is your friend......I understand it now......or better......
https://rahsoft.com/2021/05/26/what-is-snr-and-noise-figure-nf/
https://rahsoft.com/2021/05/26/what-is-snr-and-noise-figure-nf/
From a noise perspective the 2SK209 isn't as quiet as the 2SK170. The Data sheets both have noise references in dB and the 2SK170 also has nanovolts per square root Hertz. A quick way to look at it is to compare the transconductance of 15 mS Vs 22ms. With 4 in parallel 450 pV vs 530 pV. This is close enough.
Ok, nothing to worry about.
Could the 2SK209 benefit from being a smd-type so circuit will be more compact with shorter signal paths?
Also the 2SK170s will sit like small antennas and pick-up noise compared to the 2SK209?
Probably pure imagination. But if it is a bit true it will make me sleep better and I will be happy with 2SK209 🙂
Could the 2SK209 benefit from being a smd-type so circuit will be more compact with shorter signal paths?
Also the 2SK170s will sit like small antennas and pick-up noise compared to the 2SK209?
Probably pure imagination. But if it is a bit true it will make me sleep better and I will be happy with 2SK209 🙂
Already made few Pearl 2... some with 2SK170, some with 2SK209... nothing to worry about... 2SK209 are available and cheap, go fot them... if you already have 2SK170, use what you have 😉
The LSK170 also exist as a smd type.....may try those 🙂
No......I probably go with 2SK209. They are included in the kit and I have also a small stock of them.
No......I probably go with 2SK209. They are included in the kit and I have also a small stock of them.
I might have missed it... what is the total current draw per rail for a single channel?
Ballpark figure is AOK if anyone has it.
Ballpark figure is AOK if anyone has it.
The current draw is about 55 ma on the positive rail and 45 ma on the - rail.