Sutherland Engineering Phono Loco
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| Condition | |
| Payment methods |       |
| Ships from | Nashua, NH, 03063 |
| Ships to | United States |
| Package dimensions | unspecified |
| Shipping carrier | UPS |
| Shipping cost | $80.00 |
| Original accessories | Box, Manual |
 Average | Research Pricing |
Southerland Engineering Phono Loco phono preamp. Unit is in excellent physical and functional condition and has been modified to RCA (single-ended) rather than XLR (balanced) connectors. This is the ultimate expression of Southerland Engineering’s technology and a no-holds barred approach to phono signal processing. Please read Southerland’s web site explanation on this unit as it is very specialized and unique. Sells as new for $8,200.00
Loco FAQs
Q What Does Transimpedance Mean?
A transimpedance amplifier input looks like a virtual short to the input signal. The input voltage is therefore zero. The input signal is the current going in/out of that virtual short. The input current is multiplied by the gain (in Ohms) to give an output voltage corresponding to the input current.
Q What Are The Loading Options?
There are no loading options or concerns. A current input stage (transimpedance) input is a virtual short. That topology obviates load resistor selection. The current going into that short is then amplified.
Q Can I Use a MM Cartridge?
You are welcome to try. It is unlikely to work very well.
Q Will It Work With […] Cartridge?
We expect the Phono Loco to work very well with most MC cartridges. But there is not yet a body of info available. We will keep a user forum page updated so experiences can be shared.
Q What is the Gain?
Conventional voltage amplifiers express gain in dB (as the ratio between the input voltage and the output voltage). With a transimpedance amplifier, input is current and the output is voltage. For that topology, gain is expressed in Ohms. Gain is approximately 10k Ohms at 1 kHz.
Most MC cartridges will work well at the medium gain setting. There is also a low (voltage down 6dB) setting and a high (voltage up 6dB) setting.
Q Will It Work With […] Cables?
Most audio signal cables are designed to transfer voltage changes. The Phono Loco input voltage is zero and doesn’t change. What does change is current. That is generally a favorable condition for cable performance
Q Since there is a unique interaction between the cartridge, phono cables, and Phono Loco, how do I avoid expensive experiments?
If your dealer has taken on the Phono Loco, they will have the experience to help build a superb analog playback front end. Your dealer will have explored various combinations. You don’t have to spend your money until you personally experience the winning combination.
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Return Policy
Return Window
Item can be returned within 7 days of receipt.
General Terms
Items must be returned in their original condition, with all included packing materials and no signs of use. Buyer assumes responsibility for all shipping return costs unless the item was not received as described.
Refunds
Buyer will receive a full refund in the original payment method less any shipping charges.
Special Conditions
New items replacement only if defective.
