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78's through the system

I am simultaneously considering ways to upgrade my phono setup, and be able to play 78's on the big rig for the first time. I own a mid-80's Technics SL-1200 with a Benz-Micro Glider M2 going though a conrad-johnson PV-8 w/phono. The first thing to address is either modifying the TT to play 78rpm, or preferrably upgrading to a better TT that can do 78rpm. I have seen that Michell can supply a 78-capable pulley for the Gyrodec, but other suggestions would be welcome. Then I need a tonearm with a removable headshell, and I'm thinking SME, again suggestions helpful. I have no idea what 78 cartridge to look for (I'll keep the Glider for 33/45). And lastly, how imortant will it be to only have RIAA EQ available to me, or will I need to do something in the phono preamp area about that? My entire budget for this project is $3,000 max, whether I go new or used.
zaikesman

Showing 2 responses by psychicanimal

psychicanimal
1,738 posts
 
Zaikesman, I own a 1200 too. You can send it to Kevin Barrett of KAB Electroacoustics and have it modified for 78 RPM playback. His website is ( www.kabusa.com ).
The 1200 has dial-in VTA, so you just write down each cartridge's value, release the lock and dial it in. Just that simple.

You do not need to upgrade to a 'better' turntable unless you're willing to spend some serious money (thousands of dollars). Kevin has designed a tonearm fluid damper for the 1200. It is only $149 and it is absolutely outstanding.

My 1200 has Phoenix Gold interconnects, a JA Michell clamp, Sumiko HS-MMT headshell and an Ortofon X5 MC linked to a Monolithic Sound PS-1 phonostage and then to a Melos SHA-1 hybrid linestage. Line conditioner is a Tice A/V Solo. I can tell you the sound is truly high end.

The 1200 is a neutral sounding and very stable deck. Don't be mislead by well intentioned but misinformed/prejudiced persons who think it is a "DJ turntable"...
psychicanimal
1,738 posts
 
I attempted changing the tonearm wires and ended up buying a new tonearm...it's a very tricky procedure and the service manual is of no help. I took pictures, however, and plan to publish them in an internet audio e-zine.

Do you find improvement w/ the sorbothane mat? I've heard it's not a good thing for the 1200. Ringing? All aluminum rings...perhaps you have trouble with isolation and damping. I don't have (or at least hear) any troubles. I have mine on an IKEA Lack coffee table as Ken Lyon of Neuance shelve's suggested me. It is then placed on a marble cutting board sitting on four adjustable level brass cones.

The addition of the tonearm fluid damper is like having a totally different TT. My Ortofon X5 had a tonearm resonance point of 15 Hz and after the damper it completely disappeared. I have also placed a Bob Regal foot to the left of the tonearm base behind the platter. It cleaned out female voices by lowering the pitch (is this what you call ringing?).

Well, if I were you I'd definitely try the damper. For $149 it's the most sensible upgrade you'll get.
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