Audiophile fully balanced reference preamplifier



PREAMP III highlights

• Audiophile reference preamplifier
• Fully balanced circuit design from input to output
• Professional Class A output stage using technology derived from studio engineering
• New with high resolution display
• All used components are of outstanding quality (e.g. Burr Brown® OPA 627) and additionally selected; all relays have high quality gold-plated contacts
• New 4-channel digital volume control for best crosstalk
• 3 x fully balanced high level inputs (XLR) and 2 x unbalanced high level inputs (RCA)
• 1 x unbalanced input (RCA) configured as “SURROUND-BYPASS”
• 2 x fully balanced outputs (XLR) – 1 x AC coupled, 1 x DC coupled
• 2 x unbalanced outputs (RCA) – 1 x AC coupled, 1 x DC coupled
• 1 x headphone output, switchable (1/4″ stereo female jack)
• 2 x unregulated, switchable output for the connection of an external headphone amplifier (1 x RCA/ Chinch), 1 x (XLR) Phase switch for 0° and 180°
• 1 magnetically shielded, encapsulated 50 VA toroidal core transformer („Made in Germany“) of premium quality for high output reserves
• Front panel, cover and remote control are made of massive and solid aluminium; turning knobs made of massive and chromed brass
• ACCUSTIC ARTS® PREAMP III is “Handmade in Germany”

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Specifications

Inputs:
3 x fully balanced high level inputs (XLR)
2 x unbalanced high level input (RCA)
1 x unbalanced high level input or surround bypass (RCA/Cinch)

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Outputs:
2 x fully balanced line-out (XLR)
2 x unbalanced line-out (RCA)
1 x unbalanced fixed out (RCA/Chinch)
1 x unbalanced out (XLR)
1 x headphone output (1/4″ stereo female jack)

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Frequency response:
DC – 120 kHz (+0 dB / -0,5 dB)

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Signal difference left/right:
< 0.2 dB (from 0 dB to -60 dB)

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Crosstalk attenuation L ↔ R:
> 102 dB

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Input resistance:
balanced: 2 x 50 kΩ
unbalanced: 50 kΩ

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Output resistance:
balanced: 2 x 50 Ω
unbalanced: 50 Ω
AC coupled with 3.3 µF

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Max. output voltage:
11 Veff

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Signal-to-noise-ratio:
-96 dB (unweighted)
-100dB (A weighted)

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Distortion (THD+N):
< 0.002 %

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Power consumption:
approx. 12 watts

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Dimensions (H x W x D):
128 x 482 x 393 mm / 5,0 x 19 x 15.5 inches

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Weight:
14,5 kg / 32,0 lbs.