Eminent Technology ET-2 Tonearm Owners



Where are you? What mods have you done ?

I have been using these ET2's for over 9 years now.
I am still figuring them out and learning from them. They can be modified in so many ways. Bruce Thigpen laid down the GENIUS behind this tonearm over 20 years ago. Some of you have owned them for over 20 years !

Tell us your secrets.

New owners – what questions do you have ?

We may even be able to coax Bruce to post here. :^)

There are so many modifications that can be done.

Dressing of the wire with this arm is critical to get optimum sonics along with proper counterweight setup.

Let me start it off.

Please tell us what you have found to be the best wire for the ET-2 tonearm ? One that is pliable/doesn’t crink or curl. Whats the best way of dressing it so it doesn’t impact the arm. Through the spindle - Over the manifold - Below manifold ? What have you come up with ?
128x128ct0517
He just sent me the manifolds. He never asked me to send him my spindles and both manifolds work just fine without any play at all.
Hi guys
I bought a vDH colibri xgp, not the light version, and I was wondering if it was a good match with the ET 2 original arm tube? My other options are a VPI 12 or a MS 505.
06-17-15: Analogluvr
Hi guys
I bought a vDH colibri xgp, not the light version, and I was wondering if it was a good match with the ET 2 original arm tube? My other options are a VPI 12 or a MS 505.

Hi Analogluvr and welcome to the thread.
Very nice cartridge. :^)

So you bought the P which stands for Plastic body over the metal M - version ?
Interesting how the manufacturer states how each cartridge version is more suitable for different music genres.

The COLIBRI is available in three main versions:

XC Version: (X = cross shaped modulator, C = matched crystal Copper wire coils)
Low output all-round model
Output voltage: 0.22 mV/channel
Types available: XCP and XCM (P and M type suffix see *4)

XC-HO Version: (X = cross shaped modulator, C = matched crystal Copper wire coils, HO = High Output)
High output, most suitable for jazz music
Output voltage: 0.30mV/channel
Types available: XCP-HO and XCM-HO

XG Version: (X = cross shaped modulator, G = matched crystal Gold wire coils)
Medium output, most suitable for classical music
Output voltage: 0.38 mV/channel
Types available: XGP and XGM

**************************************************
**************************************************

Colibri Static Compliance: 35 Micron/mN

This makes it very high compliance.

As one example the Acutex 420 str reviewed here by Bruce was even higher compliance. 42 x 10 -60 cm/dyne.

For those confused by compliance....think cartridge springiness.

(taken from - Galen Carol Audio)

Any cartridge/tonearm combination will exhibit resonance at a specific frequency (or frequencies).
This resonance is due to the interaction of the cartridge (acting as a spring), and the weight of the arm (acting as a mass).
The "springiness" of the phono cartridge is described as compliance, the weight of the arm is specified in mass.
As an example, a heavy weight on a light spring would obviously over-flex the spring, conversely, a light weight on a strong spring would not allow sufficient flexion.

so ..

Low compliance 12 x l0ˉ6 or below, is considered low compliance.
Medium to high compliance is 13 x l0ˉ6 and 25 x l0ˉ6 is considered high.
Very high compliance above that.

You can express compliance as the Colibri does in um/mN.
Here a rating of 5 to 10 is considered very low, 10 to 20 is moderate and above 35 is very high

The Colibri is very high compliance.

So if all other factors are equal the ET 2.0 with original aluminum arm tube would work best with this cartridge.

************************************
************************************

other interesting stuff.
The web site data for VDH shows the vertical tracking angle as 22 Degrees for the Colibri

Here is info lifted from the ET2 manual Page 56 which I find useful.

*Not all cartridges will be improved by using them at some angle other than the intended design angle. the top of the cartridge parallel to the surface of the record.

*If the measured vertical tracking angle of a cartridge is high (greater than 22 degrees) its vertical performance will probably be improved by tilting it back 2 or 3 degrees. (front goes up) to match present vertical angles on records.

*If the measured vertical tracking angle of a cartridge is 18 -20 degrees it will probably perform best when its top is mounted mounted parallel to the record.

*Some cartridges are senstive to small changes in VTA, some are not.

pls excuse an spelling/grammar errors.

****************************************
****************************************

And if we really want to get ANAL-og with our ET2 setup. :^)

low compliance cartridge - use triple leaf spring with I Beam.
medium compliance - use double leaf spring.
High compliance - use single leaf spring.

The Colibri would use one leaf spring.

We are matching I Beam Springiness with that of the cartridge.
My personal experience with my and my friend's ET 2.5 is the lack of precision in manufacturing these parts. This is most likely the reason for his holding down the cost for so long.

When I take my arm/housing off the post/arc block.. it is an issue that involves quite a bit of pressure! On my friend's very recent arm upgrade, it didn't involve any pressure in releasing these two mating components! This is a BIG difference in the issue regarding precision/mating parts that greatly affect the overall sound of the arm!!!

I personally believe that the past precision of these parts were/are much better than the recent ones.

Here's an interesting thing... www.stepcraft2.com .

An in home CNC/3D printer!!! Wow! A game changer to say the least.
Bigalt: My hearing isn't like it once was either.

The saving grace is.. even though humans' listening range doesn't go past 20Khz, an lp has the ability to go to 40khz. This can't be heard but can be experienced!!!!

The once reported range of digital doesn't come close.