Have anyone pics and tech-data for a SU-1 step-up?

Yes, Frank. We're not all like that here on Audiogon. You unfortunately got a "bad apple" out of the barrel. Sorry.

I recently purchased an Expressive Technology SU-1 for use with my Aesthetix I/O signature phono stage driving a low output Van Den Hul Colibri. I also was lucky enough to have borrower a Verion Mk 1 and a Bent Audio MU TX-103 in silver to do a shoot out between the three. (If any one is interested email me and I’ll send you photos and sonic data I recorded. (Pcb-designs@att.net)

I agree that placement and cable selection with the ET SU-1 is critical. I’m finding that n my cable choice of Siltech FTM-4 Gold is working best. I still have a ground / hum issue but hands down the ET SU-1 is the most dynamic T/T I’ve listen to date.

I have the original manual on the SU-1 and can scan this information if anyone wants.

Paul

I use a Tektronix oscilloscope and sound pressure meter with a calibrated test record to do my study. So I have gather two types of data, actual meter data and audible feedback with my own two ears.

It was just amazing the sonic extension that the SU-1 had moving from LP to LP changing the transformers and reading the pick values at the same time intervals. Waveform extension could be seen as voltage peaks on the scope. I actually have picture comparisons of all three transformers on the scope that I can send you.

My system consists of the following analog playback equipment. A SME 20/2 turntable with a Graham 2.2 arm with Hovland cables. I just brought the SU-1 from a dealer friend for only 2K and I’m using Siltech HTM-4 gold cables as an interconnect to my Aesthetix I/O signature phonostage. My cartridge is the Van Den Hul Colibri with a gold coil and a wooden body. I have finally reached Audio Nirvana with this setup.

Daer friend: I own severals cartridges and tonearms. I'm a music-analog/lover and I can tell you ( with confidence on my 40 plus years on music and with confidence on my ears ) that " THE BEST STEP UP TRANSFORMER IS NO STEP UP TRANSFORMER " in the signal chain. When you put more stages ( transformer, cables, conectors, etc ) in the delicate and very low power signal that comes from your phono cartridge you ALWAYS degraded this signal. The best solution: a good preamp with built in phono stage ( with out a step up transformer inside ). When you hear this then you can hear your records for the first time. I really mean it.
Best regards.
Raul.

Hi Raul,

I wonder what phono stage you might be using? I must respectfully disagree with your assertion that a step up device inevitably degrades the sound! The combination of a tube phono stage with a nice step up driven by a lower output cartridge has sounded best to me in my limited experience.