My hifi is a disaster 1 problem at a time .

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Andy-831
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Location: Lancs / Yorks Moors
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Re: My hifi is a disaster 1 problem at a time .

Unread post by Andy-831 » Fri Jan 25, 2019 12:01 pm

Looking good mate, how you getting on with the P50sa, was it an upgrade?

Andy
Analogue
301 / 3012 / Shure M75 + Jico SAS
401 / PU7 / AT33ev
Longdog Audio Phono stage (MCj1)
Digital
Vortexbox, SBT / Caiman Seg and Dorado
Cambridge CXC
Amps
Tron Seven Linestage, Quad 44
Quad 303, or Bel Canto Set 40, or NG 300B Set Monoblocks
Speakers
Tannoy GRF Memory.
Tannoy ST100 Supertweeters

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CN211276
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Wales

Re: My hifi is a disaster 1 problem at a time .

Unread post by CN211276 » Fri Jan 25, 2019 12:02 pm

Celestion Ditton 15XR speakers were the first hifi speakers i bought. Cost £100 back in 79. :grin:
I set a course just east of Lyra
And northwest of Pegasus
Flew into the light of Deneb
Sailed across the Milky Way

Sonore microRendu/MCRU PS, AQ J-bug, Wirewold Ultraviolet, Chord Mscaler-Qutest/MCRU PS, Geitnote Apogee, NVA BMU, P90SA, A80sMk2, Phono 1, SSP Mk 2, TSCS, TIS mk2, Cube 1s, Atacama stands, Rega Planar 3, Denon DL-110, Grado SR 325e, headphones.

Second system
Chord Mojo (also HP amp), NVA P20, A20, Cubettes, SSC, LS3.

Out and about
Oppo PM3, Audioquest Dragonfly Red.

R.I.P. Doc

Daniel Quinn
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Joined: Thu Jul 12, 2012 7:16 am
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Re: My hifi is a disaster 1 problem at a time .

Unread post by Daniel Quinn » Fri Jan 25, 2019 12:09 pm

These were dirt cheap. And yes the stepped attenuator was a step up. But not as much a two bass drivers wired in series

Welder
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Location: Catalonia, Spain
Spain

Re: My hifi is a disaster 1 problem at a time .

Unread post by Welder » Fri Jan 25, 2019 9:35 pm

Hello DQ.
I'm glad to read you are recovering. It sounds like it's been a real struggle.
Single spur balanced Mains. Self built music server with 3 seperate linear PSU, Intel i5, 16 GB RAM no hard drive (various Linux OS). Benchmark Dac2 HGC, single ended XLR interconnects/Belkin cable. Exposure 21RC Pre, Super 18 Power (recap & modified). Modded World Audio HD83 HP amp. Hand built Monitors with external crossovers , Volt 250 bass & ABR, Scanspeak 13M8621 Mid & Scanspeak D2905/9300 Hi. HD595 & Beyer 880 (600 ohm) cans.

Daniel Quinn
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Re: My hifi is a disaster 1 problem at a time .

Unread post by Daniel Quinn » Fri Jan 25, 2019 10:52 pm

Thanks welder
Its been bloody hard and it still is. It is of course better than the alternative

Daniel Quinn
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Re: My hifi is a disaster 1 problem at a time .

Unread post by Daniel Quinn » Fri Jun 07, 2019 8:33 am

My right knee feels 50% heavier than my left, my foot, toes and ankle don't move, my control of my right arm is neglible below the elbow and the muscles in the right side of my face are currently fucked. Despite these handicaps recovery is now slow and my physio now me alone.

It seems a perfect time for this thread to return to hifi. As I am on the sick, according to the govt, until at least 2021, I've had plenty of time to piss about - 1 handed- with hifi.

I've got a lenco and a rega arm, more of which later. Firstly, I picked up a phono 1 cheap. It's a bit low on volume so I need to change a 470 resistor for a lower value.

I've opened it up and removed the resistor. I wait for the postie now.
Looking at it, I am firstly going to try and isolate the transformer and ultimately make a fascimilie of a phono 2 with two power supplies.

Come on postie

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Latteman
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Re: My hifi is a disaster 1 problem at a time .

Unread post by Latteman » Fri Jun 07, 2019 9:50 am

Would it be easier to transplant the phono board into the pre amp and use the phono 1 as the power stage ?
RIP Doc
Analogue- Lenco GL59, 10” ARB Carbon arm Grado Reference Prestige 1 MI
Nva Phono 1 (external psu)
Digital Sources- Denon CEOL Piccolo & Fiio x1ii
Amplification-NVA P20, A20 (x2), A60
Speakers- Diy BBCubes on Nva Stands;
Ls6, Ls5; SSP
Mini BMU

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Latteman
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Re: My hifi is a disaster 1 problem at a time .

Unread post by Latteman » Fri Jun 07, 2019 10:09 am

Be interested in your resistor upgrade- where is this located
RIP Doc
Analogue- Lenco GL59, 10” ARB Carbon arm Grado Reference Prestige 1 MI
Nva Phono 1 (external psu)
Digital Sources- Denon CEOL Piccolo & Fiio x1ii
Amplification-NVA P20, A20 (x2), A60
Speakers- Diy BBCubes on Nva Stands;
Ls6, Ls5; SSP
Mini BMU

Daniel Quinn
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Joined: Thu Jul 12, 2012 7:16 am
Wales

Re: My hifi is a disaster 1 problem at a time .

Unread post by Daniel Quinn » Fri Jun 07, 2019 10:24 am

No I don't think so.

And it ain't an upgrade per se and we're it is, is dependant on what age your phono 1is and I only know mine.

_D_S_J_R_
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Re: My hifi is a disaster 1 problem at a time .

Unread post by _D_S_J_R_ » Fri Jun 07, 2019 11:51 am

To change from MM to MC, you need to replace FOUR resistors in total. The 47k MM loading is changed to 470 (some MC's don't mind 47k) (two resistors) and more importantly, two 'gain' resistors are replaced (I'll need to look up the values). USUALLY, the Phono 1 or 2 output on stock MC and MM settings are almost CD player level. To save repeated board removal in future, it's a good idea to do as RD asked me to do, solder some 'vero-pins' in the position of these resistors so they can be changed more easily.

You can't turn a Phono 1 into a Phono 2 without adding quite a bit inside and taking out much of the supply components. Not sure how much I should say here (apologies), but anyone who's seen inside knows the changes.

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