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August 24, 2019, 07:30:38 AM

Author Topic: Eros 2 Step-up Transformers  (Read 1412 times)

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Online Paul Birkeland

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Eros 2 Step-up Transformers
« on: September 28, 2018, 06:13:58 AM »
Incorporated into the Eros 2 are a couple of holes for mounting step-up transformers.  We have used, with great success, the step-up transformers from Sowter.  Just be sure to pick "threaded grommet style E" when ordering so they mount right up in the holes we provide.
Sowter Step-ups
Cinemag transformers with the threaded bushing mount will also fit:
Cinemag Step-ups
Jensen transformers will work, but will require adding some extra holes to the chassis:
Jensen step-ups
Terminals have been left available to provide convenient locations for secondary loading resistors.  Primary loading resistors and loading caps can be installed across each RCA jack.  Instructions for proper installation of step-up transformers will be forthcoming shortly.
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline denti alligator

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Re: Eros 2 Step-up Transformers
« Reply #1 on: October 21, 2018, 06:21:38 AM »
This is very helpful, and it's very tempting for when I upgrade from my Seduction.

My question is: how much does the Sowter affect the overall sound of the Eros? I know it's dependent on the cartridge chosen, but was wondering--especially since there are all kinds of SUTs out there--what effect these Sowters that you've tried have had. Is it a definite improvement, or a matter of taste?

Also, isn't placement key for interference? I'm assuming the holes for mounting are optimal, or would getting an external SUT that can be moved further away be better?
« Last Edit: October 21, 2018, 06:23:49 AM by denti alligator »
- Sam

Rega P3-24 (w/AT 150MLX) w/Groovetracer upgrades / C4S Seduction / FLAC -->J.River -->DSD256 -->Gustard X20 / Stereomour II / Klipsch Forte II w/Crites upgrades / C4S S.E.X. 2.0 +Nickel MQ Iron / Speedball Crack / Sennheiser HD600 w/Cardas cable

Wish list: Eros / Crackatwo / Tode

Online Paul Birkeland

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Re: Eros 2 Step-up Transformers
« Reply #2 on: October 21, 2018, 06:49:13 AM »
My question is: how much does the Sowter affect the overall sound of the Eros? I know it's dependent on the cartridge chosen, but was wondering--especially since there are all kinds of SUTs out there--what effect these Sowters that you've tried have had. Is it a definite improvement, or a matter of taste?
The Eros will not work properly with a low output moving coil cartridge unless step-up transformers are used.  We are recommending these transformers because they are well shielded, sound good, and have been available for quite some time (and should continue to be).

Also, isn't placement key for interference? I'm assuming the holes for mounting are optimal, or would getting an external SUT that can be moved further away be better?
Shielding is key.  I had external SUTs and a gen 1 Eros prior to the Eros 2 with Sowter transformers, and I had a very difficult time getting things quiet with my original setup. 
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man