Triplanar RCA out to Balanced out for MP-1


Hello all, especially Doug Deacon

Well,,,,,, my Atma-Sphere MP-1 mklll has just arrived. much joy. Now I need to reterminate my RCA out from the Triplanar to a balanced out.

I am a competent solderer.

All suggestions and hints welcome
cousinbillyl
Hi Bill,

Contact me through the contact button on my website. I'll get with Frank on your DPS.

He and I will hook up at the Rocky Mountain Audiofest in 3 weeks (drop on by suite 1130 if you're attending).

I haven't spoken with Frank in a few weeks, but typically he leaves early for the Rocky Mountain Audiofest in order to take in some of our beautiful Autumn weather.

I can't make any commitments, but there's an outside shot that I could "encourage" him to pack your repaired arm in his suitcase.

Cheers,
Thom @ Galibier
Hi Raul,

Yes, I was trying to keep my answer general (not specific to the Triplanar) to help expand on the good advice you gave.

With respect to the Triplanar, I have not opened up the junction box that is positioned 2/3 of the length down the tonearm interconnect. This is where the wire separates into left and right channels.

Someone told me that you can pick up the chassis ground from inside this box (to connect to pin-1). Someone else said that only (+) and (-) (pins 2 and 3) are accessible inside this small box.

I'll make a point of checking this in the next few days (swamped at the moment).

Cheers,
Thom @ Galibier
I have a seperate ground wire coming from this box. It could have been spliced to offer two length's?, I think.

This is a moot point since I have now spoken with Mr. Mai, and he will gladly do the mod for a minor fee.
Cousinbilly, I gather your Triplanar has the optional external junction box with the standard female RCA receptacles. This allows you (or forces you) to use additional phono cables from the junction box to the preamp. Since you have decided to send it back to Tri, I encourage you to consider having him remove the junction box in favor of cables that go directly from the cartridge to your preamp inputs. Said cables would be terminated with male XLR connectors, of course. I think this is advantageous with low output phono cartridges, the likes of which you will be using.