renisnceman
Responses from renisnceman
| Mad Scientist IC’s @williewonka the dac is the Jolida dsd non- bluetooth version connected to a Bluesound Node 2 via a Nordost Silver Shadow digital cable with bnc-rca adapters. Speaker cables are diy silver over copper ribbon 10 AWG with cable lifters. The hum is... | |
| Mad Scientist IC’s Speakers hum with the Schroeder- Dueland IC’s; they don’t hum with the Mad Scientist IC’s. No other changes to the system. | |
| has anyone tried chinese cables? FWIW, I took a chance and bought 30’ of silver plated, 7 nines copper ribbon cable, 12 strands 16 gauge each, FEP insulated, or so it said. Built a bi-wire set and in my system they sound amazing. I suppose I’d have to borrow/buy commercial prod... | |
| Passive preamp issues or? I purchased an ebtech hum-x and it made no difference. The Bluesound is quiet but the dac isn’t up to par with the Jolida. I have a feeling I’m going to have to stay with the passive pre- it’s just a little frustrating knowing improved sound qual... | |
| Passive preamp issues or? No hum from the Bluesound.... | |
| Passive preamp issues or? I put the pre-amp back in the loop. Dead quiet- decided I couldn’t live with the hum. FWIW- and I don’t clearly understand the logic behind this, if I keep the amp connected to the speakers and disconnect the dac from the amp, the hum is worse. D... | |
| Passive preamp issues or? From Michael Allen at Jolida/Black Ice- “the spec is 47 K ohm.” The volume control is analog. | |
| Passive preamp issues or? Reread your post, I’ll try to confirm with Jolida. | |
| Passive preamp issues or? Output impedance from the specs page is 47K ohms | |
| Passive preamp issues or? @georgehifi- so when I turn the volume up, the speakers hum, mildly— then as I turn the volume up all the way, well past safe levels, the hum disappears and I just get white noise hiss- again, not that loud. If it was a grounding issue would the... | |
| Passive preamp issues or? The hum is non-existent with the volume down- I’ve got nos Telefunkens in the dac—wondering if switching to lower gain 5751’s would make a difference? | |
| Tube Rolling the Jolida/Black Ice dsd Dac I’ve been pretty happy with the old stock Telefunkens. After the SR Orange fuse, I added a Nordost Silver Shadow with bnc/rca adapter. It replaced a Silnote cable and for the money it was a good purchase. In my system, resolution went up anothe... | |
| Tube Rolling the Jolida/Black Ice dsd Dac My Jolida dsd dac’s fuse is spec’d out at 1 amp slo-blo, so that’s what I purchased from SR. Takes a while to burn in and it’s kind of a rollercoaster ride, but to my ears clear improvement in soundstage, bass and air between the instruments. Wo... | |
| Tube Rolling the Jolida/Black Ice dsd Dac @jonstine I’m the OP- been using NOS Telefunkens that I’m pretty happy with. Are these the British Mullards from Upscale you’re referring to? Pretty tempting. About 2 weeks ago I replaced the fuse with a SR Orange- pretty nice upgrade. | |
| Why do you think Bi-Wiring improves the sound ? FWIW, I build my own loudspeakers. The most recent pair, a 2-way, has the woofer and wide-range driver on two separate boards, isolated from one another. To my ears, they sound best bi-wired. |