B&K 200.7 S2, 200.5 S2 user manual Purpose and Function, Design and Construction, Features

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PURPOSE AND FUNCTION

PURPOSE AND FUNCTION

The Reference 200.5 S2 (Five channel) or Reference 200.7 S2 (Seven channel) is a high power amplifier that is designed for use in all types of audio or audio/video systems.

DESIGN AND CONSTRUCTION

The Reference 200.5 S2 or Reference 200.7 S2 amplifier utilizes high quality electronic circuitry to achieve an environment wherein a detailed, transparent, and highly musical sound can be realized. The high quality parts complement includes: state-of-the-art solid state devices, 1% metal film resistors, computer grade elec- trolytic power supply capacitors, and a high capacity toroidal transformer. All B&K products are designed and hand assembled in Buffalo, NY U.S.A.

The Reference 200.5 S2 or Reference 200.7 S2 operates with a class A predriver and AB MOSFET power output stages. These high power amplifiers are capable of delivering full range while reproducing the most demanding music passages effortlessly into the most demanding audiophile speakers.

FEATURES

High Current - Ability to cleanly, accurately, and reliably reproduce demanding recordings or source materials into low impedance drivers and speaker systems.

Class A Predriver - Improves low level detail and clarity for smoother, more musical sound.

AB MOSFET Output - Provides efficient and linear power delivery, as well as protection from thermal overload. Gold Plated Connectors - Improved sound with minimum signal loss and degradation.

Five Way Binding Posts - High quality binding posts accommodate up to 4 gauge wire.

Control Output - One 3.5mm (1/8”) 10-12 VDC @ 200 mA output for controlling other amplifiers or control- ling external systems that use a voltage trigger.

Control Input - One 3.5mm (1/8”) jack that allows standby on/off with a 5-24 VDC control signal.

Toroidal Transformer - Efficient, high current, shielded transformer that supplies the amplifier with a clean and constant supply of power, even during highly demanding source material passages.

Discrete Circuitry - Dynamically provides a full, accurate, and three dimensional reproduction of source material.

1% Metal Film Resistors - High quality resistors used in all active circuitry to reduce noise and obtain better sound purity.

Computer Grade Capacitors - Large capacity computer grade electrolytic capacitors for extended low fre- quency control, increased power supply, and improved dynamics.

Balanced Inputs - Balanced inputs deliver the quietest and most accurate signal path between the preampli- fier and amplifier.

Full Power Operation - Capability to operate at full power with a square wave input.

Differential Input Stage - A current source load assures DC stability and wide bandwidth linearity.

5 Year Factory Warranty - All B&K products sold through an authorized dealers are covered by a 5 year parts and labor factory Warranty.

Available Faceplates

17” Black (Standard)

17” Silver (Optional)

19” Black Rack Mount (Optional)

19” Silver Rack Mount (Optional)

NOTE: When rack mounting 200.5 S2 or 200.7S2 be sure to use a rear amplifier support.

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Contents Reference 200.5 S2 Reference 200.7 S2 Accessories Included Table of Contents 2SAFETY Precautions Installation ConsiderationsPurpose and Function FeaturesDesign and Construction Purpose and FunctionN T R O L I / O Back PanelXLR Balanced InputsRCA Unbalanced InputsINPUT/OUTPUT Connections Speaker ConnectionsMaking the Connection System InstallationConnects to Preamp control output Control TriggersTroubleshooting Care and CleaningReference 200.5 S2 & Reference 200.7 S2 Specifications

200.5 S2, 200.7 S2 specifications

B&K 200.7 S2 and B&K 200.5 S2 are both high-performance amplifiers from the renowned manufacturer Bowers & Wilkins, known for their premium audio products. These models represent the culmination of advanced engineering and innovative technology, providing an exceptional listening experience for audiophiles and casual listeners alike.

The B&K 200.7 S2 is a seven-channel power amplifier designed to deliver robust power and fidelity. It features a sophisticated Class A/B amplification topology, which balances efficiency and sound quality. This model boasts an impressive power output, ensuring that even the most demanding home theater setups receive adequate amplification without distortion. The 200.7 S2 employs a high-current design that enhances dynamic range, making it ideal for revealing even the subtlest details in music and film soundtracks.

On the other hand, the B&K 200.5 S2 is a five-channel amplifier that shares many of the design philosophies of its larger counterpart. It also utilizes a Class A/B amplifier configuration, offering a reliable and high-quality sound reproduction. The 200.5 S2 is particularly well-suited for smaller home theater systems or as part of a multi-room audio setup. Its efficient design helps to manage heat, making it a viable option for extended listening sessions.

Both models incorporate advanced features such as independent gain controls for each channel, allowing for precise tuning to match various speaker sensitivities. This customization enables users to maximize their audio system’s potential, whether it’s for two-channel music or multi-channel home theater applications. Additionally, the amplifiers come equipped with high-quality binding posts and balanced XLR inputs, ensuring secure connections and minimal interference.

In terms of build quality, B&K amplifiers are known for their durable construction and sleek aesthetics. With a minimalist design and robust chassis, these amplifiers exude sophistication while integrating seamlessly into any audio setup.

Overall, the B&K 200.7 S2 and 200.5 S2 are excellent choices for anyone looking to upgrade their audio experience. Their powerful performance, flexibility, and attention to detail make them standout options in the competitive landscape of high-end audio equipment. Whether for critical listening or enlivening movie nights, these amplifiers bring music and sound to life like never before.
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