CALLISTO TUBE LINESTAGE
Callisto is an all-tube linestage suitable for the most demanding audio systems and listeners. Fully balanced circuitry from input to output, including internal balancing of single-ended inputs, results in common mode signal rejection and cleaner sound. The innovative discrete switched resistor volume control maximizes resolution at any listening level. A separate power supply chassis removes any possibility of transformer noise corrupting the delicate audio circuitry. Peter Moncrief Stealth Capacitors are used in the Eclipse Edition for unparalleled sound quality.
•Fully balanced differential circuitry with ability to internally balance a single-ended input signal.
•Innovative and unique mechanically switched discrete resistor volume control with 46 positions using Roederstein resistors.
•Separate volume controls and input selectors for each channel.
•All tube amplification and output (8 tubes total).
•Separate vacuum tube regulated power supply utilizing 8 tubes.
•Two sets of XLR and two sets of RCA outputs per channel.
•Six inputs: First two single-ended (rca) or balanced (XLR); remaining four single-ended (rca) only.
Technical Specifications:-
Inputs: Six inputs: First two single-ended (rca) or balanced (XLR); remaining four single-ended (rca) only
Outputs: 2 RCA (SE) and XLR (balanced), 1 tape RCA
Line level gain: 23 dB single ended (SE), in/out, and 29 dB balanced/out
Volume control: switched resistor network volume control with 46 steps
Front panel controls: Left and right input select, left and right volume
Remote controls(optional): Volume, mute, balance, phase (option)
Frequency response: +- 0.25 dB, 20 Hz - 20 Khz
Signal to noise: measured at 70 dB minimum, A-weighted (ref 1 mv input, 75 dB gain setting)
Line input impedence: 100K ohms SE, 200K ohms balanced
Output impedence: 1K ohms SE, 600 ohms balanced
Recommended amplifier load: 10K ohms or greater (SE), 20K ohms or greater (Balanced)
Tubes, each channel: (line section) V1 (6922), V2 (12AX7), V3 (6922), V4 (6SN7)
Power consumption: 300 watts
Physical dimensions:
Main unit, MkII or Signature: 5 5/8" high, 19" wide, 18" deep including jacks
Main unit, Eclipse: 5 1/2" high, 17 1/2" wide, 18" deep including jacks
Power supply, MkII or Signature: 5 5/8" high, 19" wide, " deep including jacks
Power supply, Eclipse: 5 5/8" high, 17 1/2" wide, 18 1/4" deep including jacks
Shipping weights:
Main unit, MkII or Signature: 42 Lbs
Main unit, Eclipse: 47 Lbs
Power supply, MkII or Signature: 50 Lbs
Power supply, Eclipse: 55 Lbs
CALLISTO OPTIONS AND UPGRADES
Mk II, Signature and Eclipse
Callisto is available in three versions: Mk II, Signature and Eclipse (see tabs above for more detail on each version). The Mk II version uses high-grade Rel-Cap polypropylene coupling capacitors. The Signature version uses exotic and expensive coupling capacitors and other critical parts to bring the performance to a higher level. Eclipse is the ultimate realization of the true capabilities of the Callisto, incorporating constrained-layer damped machined aluminum panels and Peter Moncrief's Stealth Capacitors. All versions of Callisto can be factory upgraded to Signature or Eclipse.
Dual Power Supply
Callisto comes with a single power supply standard, or optionally a second power supply may be added for true dual-mono (see "Power Supply" tab above for more detail).
Remote Control
Remote control is optional with the Callisto. Adding the system allows remote adjustment for volume and muting, and optionally phase. The remote system uses motors and pulleys to rotate the volume controls and has a completely isolated electrical system. It may be added to any version of Callisto (see "Remote Control" tab above for more detail).
Faceplate Finish
Callisto Mk II and Signature available with black or silver faceplate.
Custom Finishes
Callisto Eclipse may be ordered with custom finishes
Accessories