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BALANCED AUDIO TECHNOLOGY BAT - Rex II Reference Linestage Preamp


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BAT REX II Reference Linestage Preamplifier

BAT REX II Reference Linestage Preamplifier a Zenith High-End Component: 18-Tube Statement Design Has Separate Vacuum-Tube Control Module and Power Module

Hear and Feel the Power, Finesse, and Beauty of Every Recording You Play: It Doesn't Get Better Than the BAT REX II Reference Linestage Preamplifier 

Consider the BAT REX II reference linestage preamplifier the equivalent of a premium sports car with not one, but two, extreme-performance engines under the hood. This 18-tube behemoth boasts a separate vacuum-tube control module and power module, polarity-specific power supplies, and a newly developed transformer-coupled output stage. Sonically, REX II provides beguiling levels of transparency, dynamic scale, and textural insight. Hear and feel the power, finesse, and beauty of music embedded deep inside your favorite recordings. It doesn’t get any better than this.

BAT’s Pinnacle Component: Purist Design Without Peer
The culmination of nearly two decades of design, the fully balanced REX II preamplifier represents the pinnacle of Balanced Audio Technology’s purist approach to building a statement control center without peer. Featuring a vacuum-tube power module and separate control module, this groundbreaking two-box component features a transformer-coupled output stage (aka T-REX). The latter replaces BAT’s Six-Pak of output capacitors with custom-designed amorphous core output transformers. Sonically, they offer greater dynamics, transparency, top-to-bottom extension, and a more organic portrayal of music. Easy to use, the REX II boasts an incredible user interface and myriad customizable options. And with REX II’s proprietary electronic shunt volume attenuator, you can always get the volume just right.

Trademarked Unistage Design Anchors Control Module
The signal in REX II is transmitted through only one gain stage. The Unistage circuit provides the ultimate simplicity of amplifying the incoming signal only once, while using no global feedback. Eight 6H30 SuperTubes in the Control Module achieve an extraordinarily high-current, low-impedance drive capability. Indeed, REX II would need 32 6922 tubes to offer the same current delivery! But BAT doesn’t stop there. Imagine the robust nature of a vacuum-tube power supply designed to support this level of instantaneous current delivery, and you have a better idea of the REX II’s peerless excellence.

Vacuum-Tube Power Module
To support the Control Module’s signal-handling needs, the separate REX II Power Module contains ten vacuum tubes supported by two, large toroidal transformers in a true dual-mono configuration. Vacuum-tube rectifiers and user-configurable current sources—as well as vacuum-tube AC shunt regulators—provide further levels of refinement. The final filtering stage uses BAT’s newest SUPER-PAK of custom oil capacitors. In REX II, the control box offers the benefit of a low-impedance local power supply. BAT designed each box to contain the complete power supply for one polarity. And yes, the size of each individual supply compares that found in many power amplifiers!

Extreme Performance, Engrossing Musical Reproduction
Easy to operate out of the box, REX II is just as easy to customize. Name your sources. Fix your volume for the MOVI input alone to allow easy master control of your home theater system from your pre/pro remote. Select a fixed balance adjustment for the phono input to accommodate an older phono cartridge. Possibilities are seemingly endless. Most importantly, REX II provides a level of transparency, dynamic scale, and textural insight that is simply beguiling. This 18-tube statement design lets you hear and feel the power, finesse, and beauty of music in ways you’ve never imagined.
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Inputs: 5x XLR
    Main: 2x XLR
    Tape: 1x XLR
Maximum Gain: 18dB
Global Feedback: None
Distortion at 2V output: 0.005%
Tube Complement:
    Power Module: 2x 5AR4, 4x 6C19, 2x 6H30, 2x 6C45
    Control Module: 8x 6H30
Volume Control:
    Resolution: 0.5dB
    Number of Steps: 140
Frequency Response: 2Hz to 200kHz
Input Impedance (minimum): 100kΩ
Output Impedance: 200Ω
Noise (unweighted): -100d
Maximum Output Signal: 50V
Absolute Polarity: Switchable
Power Consumption:
    Control Module: 220VA
    Power Module: 250VA
Dimensions - Each Module: 19" x 5.75" x 15.5"
    Control Module: 40 lbs.
    Power Module: 36 lbs.

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User Manual (PDF, 310 KB)

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