What's the deal with idler turntables and do they have a place in modern HiFi?


After going through a complete overhaul of an AR XA I've been tempted to take a step further back in history and restore an old Rek-O-Kut idler turntable. Can't remember the particular model number from Craigslist, but it seems like it may be an interesting project and far more customizable than the XA, especially when it come to the tonearm. The one I'm looking at comes with the original tonearm, but my guess is that it's even more garbage than the stock XA 'arm and I'd certainly replace it!

However, I don't generally become invested in something if it doesn't pay off. So if the sound is going to be dreadful because it's an idler, then I'll steer clear. But if the sound is bitchin' then I'll jump on the opportunity!
128x128mjperry96

Showing 3 responses by larryi

I know several people with systems well north of $100k that have Thorens 124s and Garrard 301 and 401 tables in them.  When properly reconditioned, these can be terrific sounding--quite punchy and dynamic sounding.  I have no idea whether it is the method of drive, the use of high torque motors or some other characteristic apart from the drive method that gives these tables their particular sound, but, in any event they certain can be great in the right system.

bdp24,

As I stated above, I don't know why the idler tables I heard have the kind of "drive" that they do have, but, I suspect it has to do with the high torque motors employed.  I have heard the same sort of sound from the three motor Audio Note table and it is a belt drive table, but, it employs three massive motors, each of which supposedly is a 2 hp motor (three massive power supplies are also used to power the motors).

It would be interesting to hear what a modern idler table sounds like.  I would love to hear the Galibier table.

 

Andrei,

At least on a theoretical basis, some designers actually do not like high mass platters because they retain (store) vibrational energy imparted on the platter from the record itself which is vibrating because of the stylus tracking the groove.  Audio Note, for example, uses a light weight acrylic platter, but achieves the benefit of high inertial mass and high torque motors by using three large motors (belt drive).  I have no idea if this particular design is what gives their top end tables their particular sound, but, they do have the kind of drive and punchiness that I hear with good idler tables.