I have had the TJN Mod installed in my Lenco for a few days now and I just want to add a few comments to support those of johnwdt (John). First, a little of my personal Lenco history might clarify my reaction to the TJN Mod. I bought my Lenco directly from Jean Nantais (JN) about three years ago. This decision was reached after hearing various versions of JN’s Lenco rebuilds in a few different high quality audio systems, most notably those owned by John. I could not ignore the superiorty of the Lenco, particularly in areas of pace, rhythm and timing (PRaT), over my VPI TNT and this is a decision I have never regretted.
My system now consists of the JN rebuilt Lenco to which is mounted a Graham 2.2 tonearm and an Ortofon Jubilee cartridge, feeding into a K&K Phono Stage. Preamp is the cheap but excellent Transcendent Grounded Grid (somewhat modified) and a Rogue Atlas Magnum amplifier. Speakers are the Quad 57s, with bass and treble panels rebuilt by Wayne Picquet, and a single Velodyne F1500 subwoofer.
Since my move to the Lenco a number of significant modifications have been introduced. Most notable of these was JN’s new bearing, which improved virtually all aspects of the Lenco’s performance. Now we have the TJN Mod which, in my considered opinion, is at least as significant as any modification that JN has introduced. Yes, I think the TJN Mod is at least as significant as the new bearing.
JN has explained his reason for introducing the TJN Mod (‘ that damned Lenco idler-wheel spring’) and John has mentioned how, by clipping and shortening the spring (thereby increasing the tension of the spring and torque of the rotating platter), the Lenco’s performance could be improved. It has been evident to me that this spring was the real weak spot in the Lenco design and it is reasonable to conclude that the Lenco’s performance has been degraded by the spring. By completely removing the spring, the TJN Mod simply and elegantly corrects this weakness.
John has mentioned the impact that the TJN Mod has had on the sound quality of his system and I would concur with everything he mentioned. In my system the mod has improved virtually every aspect of the sound – deeper and wider soundstage, improved clarity right across the frequency spectrum and, last but not least, even better dynamics . The degree of improvement has taken me a little by surprise and I’m still trying to come to grips with it. However, as the saying goes, this is a real ‘no brainer’.
If you are considering purchasing the TJN Mod kit from JN but you are not certain of what you will get for your $60, let me assure you that this kit is seriously underpriced. The metal parts (aluminum and brass) have clearly been carefully designed and they are made by the same excellent machinist that is responsible for producing the new Lenco bearing. You’re getting real value for money here and I have no doubt that if one of the major companies (eg. Linn, VPI etc.) were marketing this mod the price would be two or three times as costly.
Terry
