penmarker
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Posts posted by penmarker
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Whew, that's a lot of boards.
BTW did you order extras or just enough?
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Is there a probably some sort of hierarchy from best to less when it comes to THAT340, 2SK170/2SJ74, 2SA1349/2SC3381, 2SJ109/2SK389, and LSK489/LSJ689? Do they influence a lot or are the differences between each other minimal/negligible?
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Happy birthday Steve! Eat extra cake for me
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I'm more interested with how they secure the wires. I've had some cheapo banana jacks in the past and they use grub screws. No bueno, feels like the wires will shear right off. This one looks good.
Thanks!
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My brother bought a gaming headphone once around 10 - 12 years ago and I found out that it was mono and only had the left channel wired to both earcups.
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How are the banana jacks? Do they make secure connection with the cables? PM me where you got them please.
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Sounds great, just let me know how much the shipping will be. Since I didn't order the TKD boards and pots you can send them out whenever after inspection.
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Holy shit 17% is disconcerting.
I've been trying to search for that poll but my Google Fu isn't too strong. Mind sharing a link?Never mind, found it.
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Moved to a new house yesterday. Rented a pickup truck since my stuff isn't a lot to justify a moving lorry service. I got some glass paneled TV rack so instead of covering the stuff with the tarp we used it to wrap the glass panels. Fucking bad decision. It rained like a motherfucker for around 10 minutes and although we managed to cover them with blankets and towels they were already wet. The blankets and towels helped a bit to channel and absorb the rain but, fuck man. What's done is done.
Now laid out and leaving the electronics to dry. Speaker cabinets swelled. No fucking good at all.
Most electronics were inside the passenger area, but the ones that were outside took some moisture. I'm just glad my Elac B5 has their original box, it kept them dry.
Fucking, rain, man.
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Payment sent Steve! Thanks!
Giddy waiting for the THAT340 board.
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Thanks everyone. I decided to get a set of adapter boards from the group buy. I'll try to get my hands on all the various devices available, especially LSK489/LSJ689. Nelson Pass seem to love using 2SK170/2SJ74 in his designs so I hope those will be great too.
Minor update, yesterday during lunchtime I went to the electronics store and got some project box with the fittings and cables, etc. Rehoused my transformers for the amp and channel switcher in it. The wooden box is too soft, like balsa wood.
Still haven't drilled the front panel for the jacks and knobs. Busy moving to a new house now so will buy a bench drill after the dust settles.
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6 minutes ago, jose said:
How do you put the led on the volume knob?
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7 hours ago, sbelyo said:
Ok, all the numbers are final...
There's just two or three left to pay. The board order will be placed in the next day or two. The payment for TKD order to follow.
Hey Steve, sorry I didn't receive any links for your PayPal.
Also if its not too much, could you please add 1 set of THAT340 for me. If the order is already cutoff then its okay.
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Kenrick Sounds make amazing restorations. And their discipline while moving the speakers is commendable. But those people complimenting how good they sound through Youtube, and then through their own speakers or earphones, I mean, come on man.
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No the S means it is compatible with all iPhone 6S and 6S+ with a converter.
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Hey that is great, I guess I missed those devices.
One question, how accurate are these cheap DMMs with thermocouple type k? My Dynahi reads 55°C at the heatsink wall closest to the output devices (not the fins).
Manual says Its resolution is 1°C, and accuracy of 5% rdg + 4 dgt.
*Edit: added picture
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Been up all night coming up with the proof of concept. Moved the transformer out into a wood tidbits box and hum disappeared completely. Monday I'll go look for a proper project box and connectors+cable for it. Very happy.
But my R channel THAT340 is also noisy like some of you. Started to develop around yesterday night. Kinda thinking about the converter boards now but the matched or buying a lot of LSJ/LSK for matching is so expensive.
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21 minutes ago, sbelyo said:
1 set for stereo on the ubal/bal board set. Did you want one or two sets?
I only want one set please Steve. Thanks!
Wasn't sure if the order was for one only or for a set.
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3 minutes ago, sbelyo said:
I'm updating all the paid people now... I should be able fill the requests of all those who asked for more boards. I'm working on that now.
Hi Steve, please amend and put 2 Dynalo for me please! So this is my order.
also, do I need to order 2 sets for ubal/bal?
4 GRLV
1 Ubal/Bal with PSU (do I need only one or two for stereo?)
2 Dynalo -
Hi Steve, is it too late to add my orders?
4 GRLV
1 Ubal/Bal with PSU (do I need only one or two for stereo?)
1 Dynalo -
Loving this out the balanced as its intended but because my chassis is very cramped the transformer is inducing a lot of hum. Tried removing the boards from the chassis away from the tranny and it was silent as balanced. Looking as how it is, I cannot fit a tranny can over it. Distance between tranny and the boards' reservoir caps are only a few mm apart.
I think my next project is to get another PSU board and chassis and house them separately. I guess the transformer is too OP at 160VA.
Gain with the gain resistors at 51k is just the sweet spot for me. Volume knob on my DAC pre out is about halfway for my listening volume. Can go very loud real easy with this gain setting.
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Does anyone experience sibilance or slight roughness in the treble? I'm comparing it with my Matrix Mini-i headphone out and it sounds a little rougher in the treble region. -
Is it this model? If so the center conductor is + and outer conductor is -. You can see the polarity diagram under the label "12V DC ADAPTER".
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There's no turn on sound but turning it off does have a soft thud. Don't think I got space in the chassis for a protection board. If I'm to revisit this I'll make a dual chassis build. Or probably get a large one for speaker amps.
Unfortunately I got the pass clone chassis with an 8mm thick front panel. I'll figure something out for the volume pot and channel selector.
The whole thing is hot but I'm sure it's fine. My thermometer is in the mail, so I'm gonna take note of the temps later.
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Dude.... this sounds amazing. Miles away from the Lehmann headphone amp.
Should I worry about the initial startup offset? Its peaks to about 400mV maybe, but into my 150 ohm headphones that's like 0.0027 watts.
**edit: Goddamn can't listen to binaural tracks now, its 3.27am and I'm alone in the house and its just to creepy to hear all these sounds around me with nobody in sight.
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