Clearaudio Balance Plus Phono Preamp
The Balance Plus is an extremely quiet, high-resolution phono stage capable of handling both moving coil and moving magnet phono cartridges. It can be run in fully balanced mode using the XLR input/output, or in true single-ended mode using the RCA input/output. Additionally, it has the option of being run directly into a power amplifier via a high-resolution attenuator located on the faceplate, along with mute and fixed/variable selectors. This attenuator is also connected to an independent, high-quality headphone amplifier. The circuit board uses high-quality parts for all aspects of the signal path, and is housed in a resonance-free, CNC-machined aluminum chassis that protects against unwanted vibrations. The external power supply is housed in an identically-sized aluminum chassis. The Clearaudio Accu Plus battery power supply may be added at any time, allowing the Balance Plus to run on pure DC power for even greater performance.
Modes: Moving coil / moving magnet Amplification at 1 kHz: 63 dB (moving coil), 44 dB (moving magnet) Input impedance: 510 Ohm/220 pF (moving coil), 47 kOhm/270 pF (moving magnet) RIAA (75 µs/318 µs /3180 µs): Yes RIAA accuracy: ± 0.1 dB Distortion: 0.001% (IEC A) Signal-to-noise ratio: > 74 dB (moving coil), > 89 dB (moving magnet) Crosstalk: > 92 dB (at 1 kHz) / opposed channel hot-wired Maximum output voltage: 10.5 V (at 1 kHz) Operation voltage: ± 18 V DC / external power supply Mains voltage: 115 V or 230 V Output connections: Unbalanced (RCA), balanced (XLR) Weight: 3.97 lbs. (preamplifier), 5.51 lbs. (power supply) Dimensions: 7.12" x 8.66" x 2.17" Warranty: 3 years