What to do with a TT2?

[mafrega]

Hello again. The belt is 487 mm in diameter. Not the original. I've made an error when measuring the belt I have a little slack. It is of lower quality than the original. With my strobe light I see is a little slow with respect to the original, do you think the belt tension thus influences the speed?

[shane]

Someone did once bring in a TT2 modifed with an extra pulley similar to yours, and it sounded very good, although not enough so to make it worthwhile tooling up for production. It would work better if you had two belts, one round the sub-platter/motor, and the other round the sub-platter/idler. That way you get the correct contact area for the driving belt. I suspect yours is probably slipping.

[AlfaGTV]

Please get a proper strobe!

What difference will that do to my math?

The figures in my last post are mathematical only. As i stated earlier, i do not have a speed issue, my both TT2's are well within spec concerning real life speed! 33.3-33.4 on the TPS unit while the other one were just a tad faster.


Not anymore however, the aquired Valhalla arrived today and it was a swift operation to apply the new "Pace Maker". Exactly on speed, with a substantial improvement in SQ!

Now i'll have to decide whether to mount inside or in an external enclosure...

Regards
/Mike

[surayne]

Yes, the blue mat will have to go... I may try an Achromat or a something similar. Apart from the obvious cosmetic improvement, has anyone changed from the standard wool mat and noticed much change in the sound quality?

Mike, glad the Valhalla's working out for you - did you just connect it directly to the motor and bypass the existing board? Doesn't look like you replaced the power switch, isn't that part of the Valhalla package?

[Wakefield Turntables]

if the TT2 functions anything like a LP12 then the felt mat is supposed to be the way to go (well it was the last time I checked on the linn site about 3 years ago). Information may have changed but if you use the acromat dont forgot to alter your sprung suspension. I have a Alphason solo and had to make a small adjustment when using my acromat on it.

[shane]

Mike, any chance of some photos of the fitting and connecting process? I'm intrigued!

Surayne, we tried a lot of different mats over the years but never found anything that was a significant improvement over the Linn felt mat. (Yes, we bought in the mats, lids and hinges from our supposed deadly rivals).

[YNWaN]

do you think the belt tension thus influences the speed?

Yes, it definitely does.

[pure sound]

I like using a copper mat on mine but at 1.8 Kg it requires a substantial but manageable suspension adjustment. It's also more expensive than a TT2 usually is

[mafrega]

Thanks YNWaN.

Shane, I had not thought about putting two straps, I'll try and comment on the outcome, this will be when I get back from my vacation. Continue to learn while in this interesting thread.

Thanks

[sq225917]

If you are going to use a Valhalla putting it in a box makes more sense, they are noisy electrically and this will be picked up by your cart adding a very low level noise to the signal- that said thousands of Linnies put up with it forever without complaining...

But the noise is there, is very real and measurable.