Audiophile fully balanced reference preamplifier


TUBE PREAMP V highlights

• Audiophile reference preamplifier with a so called “tube hybrid” concept and 4 reference tubes (2 tubes per channel)
• Fully balanced circuit design from input to output
• Further optimized sound quality by new designed main board
• Advantages of this “tube hybrid” technology:
•     – very high bandwidth
•     – very low distortion factors and a “good-natured” distortion spectrum
•     – “analog” and very precise sound performance
•     – 4 separated amplification paths, which are not influencing each other
• Easy change of tubes without any adjustments just “plug and play”
• Fully balanced circuit design from input to output
• High end Class A output stage
• New with color 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
• All relays have high quality gold-plated contacts
• 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°
• 2 magnetically shielded, encapsulated 50 VA toroidal core transformer („Made in Germany“) of premium quality for high output reserves
• Front panel, cover are made of massive and solid aluminium; turning knobs are made of massive and chromed brass
• ACCUSTIC ARTS® TUBE PREAMP V is “Handmade in Germany”

Specifications

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

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)

Frequency response:
DC – 50 kHz (+0 dB / -0.5 dB)
DC – 120 kHz (+0 dB / -1.5 dB)

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

Crosstalk attenuation L‹-›R:
> 99 dB

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

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

Max. output voltage: 
18 Veff

Signal-to-noise-ratio:
-95 dB (unweighted)
-103 dB (A-weighted)

Distortion (THD+N):
< 0,0015 %

Power consumption:
approx. 20 watts (unit totally on)
<0.5 watts (stand-by)

Dimensions (H x W x D):
128 x 482 x 393 mm / 5.0 x 19 x 15.5 inches

Weight:
16.0 kg / 35.3 lbs.