3440AH

Includes
premium
construction with C&K
Brand Silver contact
toggle switches, and Deluxe Gold Plated RCA jacks.
These transformers
are wired to connect a moving coil cartridge (on a turntable) to a
phono
preamplifier, phono input of a receiver, or your preamp's
phono
input.
Into
a standard 47k phono preamp, the effective input impedance of the
low gain (1:16 ratio) is 184 ohms. At 1:30, the effective
input impedance is 52 ohms.
CONSTRUCTION TECHNIQUES: All connections are Resistance soldered using the American Beauty system which avoids heat damage to the delicate insulation on the hair-like wires of the transformers. Test equipment is very low current to avoid saturating the transformer cores. You can count on a premier product that is state-of-the-art.
This unit includes a grounding post that can be used to connect your turntable ground and your preamplifier ground. It also includes a ground "lift" switch. In all modes, the transformer cases and faraday shield internal to the transformers are connected to the ground screw. In the "ground" mode, the phono system minus sides (negative sides) are connected to the grounding lug. This configuration works well for those systems where the turntable ground is connected to the negative leads coming from the phono cartridge or where the negative inputs to the preamp are internally connected to ground. In the "lift" mode, none of the conductors in the RCA jacks are connected to the case, ground, or shield and there is no electrical connection between channels. This design allows you much flexibility to mitigate for ground loops regardless of the configuration of your other equipment.I
take pride in each and every set and provide customer support to make
sure that
they work well in your system.
http://www.bobsdevices.com/Grounding.htm
contains information on how to best connect this unit to your system
including
information on grounding and a sketch showing a properly constructed
interconnect cable.
You
can purchase this for $850.00. Payment by paypal or credit
card.
Shipping is $12 for US via Priority Mail, and $42
international via
Express Mail.
Click Here to Purchase this item and Select Options
Please
email bob@ec.rr.com to order
and to make
sure this is a match for your system and to select the switchable gain
ratios. Other transformer combinations are available as are
choices to
upgrade connectors and chassis.
I
challenge you to find a better built and quieter SUT anywhere.


For any questions or to order, please email bob@ec.rr.com