Thank you. Is there anything from the technical point of view besides different roll off, that could change and hence induce preference vs higher value? If not, then capacitors make differences (I know, I know, a hot topic discussed to death) could be an explanation.
Good to know, Thank You. Have ordered 0,1uF Mundorf Supreme to pair with C4. Will make and audio recording to compare.
B has richer more upfront sound when A is drier and comparably distant. Were they recorded in close dates in about same room temperature and input resistor loading, also without possible geometrical, tracking force, support, changes in the turntable system?
That would be a better comparison as to what value you prefer for your system because now between same type of caps. By the way, the FT-2 has metal jacket and can attract noise interference if not grounding its shell.
I have experienced that in the past. When in C3 position where the signal is still weak and susceptible. But it's a pain to wire on it with a solder joint because aluminum. Even if you succeed it will go away with little pull. Needs some mechanical solution to firmly attach a ground wire around it.
Gigant will chime in. But yes, as far as I know, all stayed unchaged except the caps and quite close recorded timewise.
Thank you for listening and observations.
Hello, i need to explain the changes i have done to phono-pre Recording A vs B, as my friend Siberia says we are comparing “oranges to apples” without proper explanation. So here goes:
Recording A had the FT-2 caps in C3 and a 400R cheap resistor in RX1 position.
Recording B had Mundorf in C3 and 301R in RX1 ( https://uk.farnell.com/holsworthy-te-connectivity/h8301rbya/res-301r-0-10-250mw-axial/dp/1751388 )
I’m not willing to go back to FT-2, but thanks for explaining the interference part.
Like i mentioned before, i have ordered the recommended value Mundorf caps for C3. Will make a recording as soon as they’re in place. So to make a fair comparison between recording B and C, as A had a different load resistor RX1. Sorry for confusion. And thanks once again for explaining all. Nice day all.
This info explains much. Different load value is key. The 301R load choice with Holco seems suitable for your vinyl rig, tone and details are better, keep it.
What turntable, cartridge, and digital capture method you used? General sound quality was good and stable by the way. Deborah Harry's new wave glam cheekiness of that era backed by a tight rythmic band came out well.
*I used Sennheiser HD-600 headphones to monitor your samples.
What turntable, cartridge, and digital capture method you used? General sound quality was good and stable by the way. Deborah Harry's new wave glam cheekiness of that era backed by a tight rythmic band came out well.
*I used Sennheiser HD-600 headphones to monitor your samples.
The UltraFSP lives! And might I say, WOW! Even through I have it nested in a rats nest of wires in my rack, this thing is quiet. The sound is big, crystal clear and, well, luscious. I am running my restomodded AR-XB with an ATVM540ML into it. S8 and S12 are ON for 40db of gain. RAW puts out around 50v with the Antek 0532. I have the UltraBiB set to ~33v to achieve 4v at TP. Setup was easy and quick. Now to box it up in something worthy of a performance like this.
Salas - This is a masterpiece of diy kit.
Salas - This is a masterpiece of diy kit.
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Hello Mr. Salas,
my turntable is modded Rega Planar 3 with motor fitted and separated on a slab of steel, rewired tonearm, main shaft ruby bearing, silicone belt, acryl slipmat and a Denon 103 MC cart. Used regular mic cable to record from Phono pre to Mackbook pro audio input via Audacity software.
Sennheiser HD-600! Impressive! Was about to ask You what kind of speakers are so revealing ;}
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Congratulations
And thanks.50V Raw DC from a 0532 TX sounds bit high. Maybe measured before loaded (before connected to the shunt reg)?
That modded Acoustic Research turntable is massive! What are the speakers? Troels inspired?
Sounds clear and rhythmic. The mods must be successful.
To give good opinion on line level captured files from an unknown system I take out my side of speakers-room equation also. Headphones although don't recreate regular stereo recordings space as intended, are more direct for details. Fewer acoustics to interact.
Correct, 50v before being loaded…. The AR is 5” high! I like curly maple 😂…. I have parts for another AR build, but I may end up cannibalizing a Technics SL-Q2 I have instead, which would include an SME 3009 tonearm I have my sights on… The speakers are Troels‘ SBA-761 design. Those speakers have a sweet, wide soundstage in my room (they totally disappear in my room), and I really like them. Having said that, I am looking around for my next speaker build, which will be horns.Congratulations
50V Raw DC from a 0532 TX sounds bit high. Maybe measured before loaded (before connected to the shunt reg)?
That modded Acoustic Research turntable is massive! What are the speakers? Troels inspired?
Oh no, I hope it’s not too high - I get 42.3v on the RAW connector with everything wired, on and warmed up: RAW + Shunt + Signal Board…. Troels‘ plan calls for a 15 degree angle cut on the lower baffle perimeter. Odd, I know, but I stuck to his plan and it works well in my room.
