High-end tweeks for a vintage Technics Tuntable


Audiogoners,

I will appreciate your recommendations on all the tweeks and/or upgrades for my Vintage Technics turntable model SL-1600 MK2 from the early 80's in my home office system. My main system has a Linn LP-12 fully loaded with EKOS tonearm, Archiv cartridge, Lingo power supply, Lingo phono pre amp, circus, trampolin, etc.

I just purchased a new Shure Type V XMR cartridge for it and will like to add some more upgrades like a better mat, headshell wires, record clamp, high-end phono cables, isolation devices, and more ....

Have anyone done this with this kind of turntable ?

Here is a brief description of the unit and you can connect to this internet link if you want to see a picture of it: http://mark.kouts.home.mindspring.com/1600mk2.html

SL-1600Mk2

Quartz Phase-Locked Direct-Drive Automatic Turntable

ca. 1979-80

Total quartz-locked continuous (analog) pitch adjustment of +6%. Aluminum die cast cabinet with Double Insulated Suspension System utilizing TNRC (Technics Non Resonant Compound) Inner Base. Underside of turntable platter vibration-damped with specially-fabricated rubber matting. Integral rotor/platter motor with full-cycle detection FG delivers 1.5 kg/cm starting torque, allowing platter to reach 33 RPM within 0.7 seconds. All front-panel controls, including start/stop, cueing, speed, and LED pitch variation display. Control buttons are precision-designed to require a moderate but definite amount of pressure for activation, providing a sense of positive control while minimizing the possibility of accidental operation. Automatic disc-size selection and Repeat Play Control with infrared sensor. High sensitivity, low-mass gimbal-suspension tonearm. Fully automatic tonearm operation controlled by microprocessor. Muting circuit eliminates unwanted noise at needle touch-down and lift-off at beginning and end of record. Universal interchangeable headshell design. Gold plated contacts. Helicoid arm-height adjustment over a range of 6 mm to accommodate varying cartridge dimensions. Stylus illuminator for low-light conditions. Quick stops achieved with a fully electronic braking system. Red LED strobe illumination controlled by the extremely stable quartz oscillator rather than potentially unstable AC line frequency.

This player came out as an updated and improved version of the SL-1600, and in the process replaced the SL-1300Mk2. Unlike the relatively minor changes from the SL-1300 to the SL-1600, the second Mk2 series was a complete redesign from the ground up, incorporating a new motor, new quartz-controlled electronics, and new tonearm. Like the rest of its series, the SL-1600Mk2 was marketed as a high-end "professional" item, much like the SL-1300Mk2, but differed from that model in several important respects. Firstly, it utilized an analog (vs. digital) pitch control system. Secondly, the tonearm was redesigned, and the trouble-prone arm-lift mechanism was replaced by a more reliable and smoother-operating microprocessor-controlled, motor-driven assembly. Lastly, through tighter electronic integration and manufacturing advances, it was also significantly cheaper to produce and sell than the SL-1300Mk2.

Thanks,
128x128tube_guy

Showing 2 responses by psychicanimal

Listen to the Psychic...

but first you've got to read the post: "in my home office system." Having an automatic TT is a great convienience--you're *supposed* to be working and might be on the phone with a customer or vendor when the album is over...

My first tweak would be to have the interconnects and the headshell wires changed (and Pro Gold everything) and the spindle oiled.

Second: Get a good base--I use a marble cutting board (garage sale) with four adjustable brass cones under; an Ikea Rack table supports all this. Make sure everything is level and correctly installed.

Third: Get a record clamp--I use a JA Michell but Kevin's is also supposed to be real good (www.kabusa.com) too.

Fourth: place a Bob Regal foot or a brass cylinder on top of the plinth to the left of the tonearm gimbal--you'll have a new turntable!

Fifth: talk to Kevin of KABUSA and find out if the tonearm fluid damper he's designed for the 1200 can be adapted to the 1600--it's an impressive upgrade for $149.

Sixth: Kevin is working on an outboard transformer for the 1200. That's what starts making noise after a few years. I wouldn't bother for a home office system, though.

Seven: make your own protractor to optimize the Shure's performance. You can download the software from www.enjoythemusic.com

Eight: upgrading the caps on the circuit board. Again, not worth for a home office unless you're having problems.

Caveats:

1) Don't mess with other mats--the 1600 has no VTA adjustment. They might make the bass floppy, too.

2) Phono stage is usually more important than TT/cartridge combination, so that and good line filtering is paramount.

3) Make sure you get work done!

I am getting true high end performance out of my modded 1200--would not trade it for a Linn, Rega, Pistol or anything similar. It is an awesome deck for what I've invested. So far only one A-goner has auditioned it (Deano). Where's Sean & Bob Bundus? Come hear for yourselves!
If the 1600 does have VTA with a ring like the 1200, then the tonearm fluid damper will probably fit (call Kevin). I used to have a 1700 and it did not have VTA adjustment--I thought they were the same except for one being semi-auto and the other fully auto.

The KAB tonearm fluid damper is absolutely AMAZING. It steps up performance and musical enjoyment so much! When you place a Bob Regal foot or brass cylinder (like from Mapleshade) next to the tonearm it's another major upgrade. Vibrations at the base of the tonearm that would otherwise get magnified in amplitude and lowered in frequency when reaching the stylus tip become heavily attenuated. Overall clarity and bass snap increase.

I'm a hardcore audiophile with a real world budget (helped pay for college working at a couple audio stores)and three times as many LPs vs CDs. I wouldn't have bought and modded a 1200 if I didn't honestly believe it was the best performer in its price range.

Thanks for your praise, Binaural. When I first defended the 1200 someone posted that I was a whore!