Rega and VPI tonearm owners - READ THIS


I have just spent the past two evenings listening to a wide variety of LP's after installing Express Machining's "The Heavy Weight" counterweight on my Rega RB900 tonearm (which is mounted on a VPI HW-19 Mk 4 turntable, and has a Grado Reference cartridge). I was prepared to be disappointed, thinking that changing the counterweight on the tonearm would be, at best, barely noticeable. Holy mackerel, was I wrong!! This replacement counterweight is the best $80 addition I have ever made to my analog front end -- and if you own a Rega tonearm, you need to buy this gizmo.

The "Heavy Weight" replaces the standard counterweight on the Rega arm, and is also available for the VPI and AudioQuest tonearms. (I can't vouch for what it will do for the VPI or AudioQuest tonearms, but it made a major improvement on my Rega.) The "Heavy Weight" is made with its mounting hole off-center, near the edge, so that the weight hangs below the plane of the tonearm like the counterweight that's mounted on the end of railroad crossing barriers. The counterweight is secured with a set screw, unlike the standard weight on the Rega arm which is held in place by a rubber donut lining the mounting hole. The "Heavy Weight" is even supplied with a hex key that fits the set screw -- nice touch.

Folks, if my experience is representative, I've got to tell you that the improvement provided by this counterweight is NOT subtle. In addition to tightening up the deep bass, the modified tonearm yields better focus, imaging, detail, and the soundstage is deeper in both directions (both in front of the speakers and behind them). I know, I know, that seems like a ridiculous improvement to attribute to a counterweight, but I listened to some 20 LP's that I know VERY well (classical, jazz, vocals, etc.) and it is NOT my imagination. To verify what I was hearing, I put the original Rega counterweight back, did some more listening, and the improvements I had noted with the "Heavy Weight" disappeared.

In addition to the improvements I heard almost immediately, I also noted on further listening that the high frequencies seemed more extended and natural -- particularly cymbals, triangles, and bells, as well as the upper frequencies of violins and brass instruments.

If you own one of the tonearms mentioned, I strongly urge you to buy the Express Machining "Heavy Weight". I feel like I've made a wonderful discovery, and would have been very pleased with this performance at twice the price. It's almost like stepping up a notch in the quality of your cartridge.

The "Heavy Weight" is sold by several retailers. I got mine from "The Elusive Disk", and I think that The Audio Advisor also sells it. Now, stop reading this post, and get online and order one for yourself. I firmly believe that you are going to be very pleasantly surprised.
sdcampbell

Showing 2 responses by extremephono

I did exhaustive listening with 3 RB250's. One had a full OL mod, one had Heavyweight + Incognito wire. Then I swapped the mods, so OL+Incognito wire, and HW+OL wire. One is stock.

In any event, either mods were step up from stock. Furthermore, the OL hardware mod was better sounding than the Heavyweight mod. Heavyweight mod was brighter sounding, more illuminated, and the bass was tuned higher in the frequency spectrum. OL was less bright, bass deeper and rounder. The stock was really quite mediocre. Bass is ill defined, but the frequency balance was decent, just lacked resolution, top-end extension, and fuzzy bass.

However, OL wiring was really not so impressive. It collapsed the soundstage, added a brittleness in mid range, and dark sounding. Incognito is totally high-end sound, very cohesive, very smooth. Overall, I rate them as:

For comparison purpose: Linn Ekos - 95%
OL hardware, Incognito wire - 85%
HW hardware, Incognito wire - 90%
OL hardware, OL wire - 82%
stock RB250 - 65%

Also try the following:

(1) Use a broccoli rubber band, wrap around the counterweight, and tighten your end stub like hell. But please don't do it with the arm mounted on the table, you'll ruin the bearing. Got to do it with the arm totally off the table.

(2) Try removing the plastic label from the heavy weight - I heard differences, mainly less glare. Others didn't hear anything.

BTW, the OL design allows using a hex key to fully tighten the end stub, which was probably why it sounded slightly better than the Heavyweight. However, Incognito wiring was better sounding than the OL wire, if you are considering upgrading the tonearm wiring.

www.extremephono.com
For comparison purpose: Linn Ekos - 95%
OL hardware, Incognito wire - 90%
HW hardware, Incognito wire - 85%
OL hardware, OL wire - 82%
stock RB250 - 65%