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The BC Li’l 703 Phonostage
We call it Li'l because it is a little BC703. With some modifications to the board it fits into an 8" x 8” x 3" chassis with enough room left over for more power supply capacitance and a DC power jack on the back to connect to one of our “in a pipe power supplies” or future power supply upgrades.

This is another customer driven product. A customer wanted a high end phonostage but the BC703 was  just a little too much for him. So we made him a Li’l 703 by cutting back on the cosmetics and power supply but allowing for future power supply upgrades.

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The Li'l 703 doesn't come with a dedicated power supply (yet.)  It is designed to match with any Thingee Pipe power supply.  A power supply, in a box that matches the Li’l703, is planned for the near future.

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                         Shown with optional MM inputs.

The Li'l703 is a MC only phonostage.  MM is optional.  It has all the same loading, gain, and filter features as the original BC703.

Technical

MC gain setting (internal, user adjustable) 87db, 81db, 75db, 67db, 61db.
MM gain setting (fixed) 42db (optional).
Resistive MC input loading (ohms) user adjustable 100, 220, 470, 1k.
Custom resistive loading: factory adjusted.
Capacitive MC input loading: custom (factory adjusted.)
Seperate MC and MM inputs: single ended RCA type.

Frequency response: 10Hz to 100kHz +/- 0.1db, rumble filter off.
Residual noise: MC input at 67db gain setting: <500uV.
Rumble filter cutoff frequency: 18Hz.

Dimensions: 8” wide x 8.25” deep (not including jacks on the rear panel) x 3” high.
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Contact:  bcircle@bluecircle.com  /  519-469-3215