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Three pairs of balanced inputs allow connection to three different turntable, tonearm, or cartridge combinations at the push of a button, without any reconfiguration Standard RIAA equalization as well as EMI, FFRR (London/Decca), and Columbia EQ selections enable proper playback of collectible records made prior to 1955 Customizable Personality Cards for each input to match the exact individual needs of various phono cartridges: MM, MC, resistive and capacitive loading, high or low gain, and demagnetizing Fully-balanced circuitry rejects noise and keeps the delicate signal from a phono cartridge in balanced mode, maintaining balanced operation throughout and eliminating noise that would otherwise obscure critical musical information Modular and discrete Boulder 995S phono gain stage is exclusive to the 2108, hand-manufactured and calibrated to spec in a potted and precision-machined housing Switchable outboard demagnetizer pass-through connections for use with specific MC phono cartridges Entirely separate power supply chassis houses four independent power supplies: left audio, right audio, control, and standby, for total isolation of all supplies from the sensitive analog audio circuitry Non-resonant and expertly machined casework protect the delicate analog signal from microphonic and resonant distortions Front panel selectable, three-setting low-cut filter removes turntable rumble or low frequency noise from warped records
Specifications
Inputs- Three pairs balanced,
converts to unbalanced
Outputs- Two pairs balanced,
converts to unbalanced
Input Impedance (Maximum)- MC: 1000 ohms
MM: 47k ohms
Resistive and capacitive loading are adjustable on individual Personality Cards
Output Impedance- 100 ohms balanced
Phono Equalization- RIAA,
FFRR (London/Decca),
EMI,
Columbia
Maximum output level- 28 Vrms
Distortion, THD- 0.005%
1 KHz Gain, RIAA- MC: 70 or 60 dB
MM: 50 or 40 dB
Noise (EIN), MC-65 mV A-weighted, 105mV flat,
20 Hz to 20 kHz
Frequency Response, 20 Hz to 20 KHz- RIAA: ±0.10 dB
Crosstalk, L to R or R to L- -100 dB or better,
20 Hz to 20 kHz
Phono Preamplifier Weight- 37 lbs. (16.8 kg)
Shipping: 51 lbs. (23.2 kg)
Power Supply Weight- 48 lbs. (21.8 kg)
Shipping: 69.5 lbs. (31.6 kg)
Power Requirements- 90-120V / 200-240V, 50-60 Hz
Power Consumption- 75W maximum