Cary Audio Cinema 7B Owner's Manual

Solid State Power Amplifiers

Cinema 2 - Cinema 5 - Cinema 7B

Owner’s Manual

NOTE: Before installing your new component, please read this manual carefully as it will inform you of the specifications, proper installation and operation procedures. Also included in this manual are guidelines on how to service and care for your new Cary Audio Design product.

Contents ___________________________________________________________

Introduction..........................................................................................................................3

Specifications ...................................................................................................................4-5

Features..................................................................................................................................6

Installation ........................................................................................................................6-7

Operation .............................................................................................................................. 8

Service and Care ................................................................................................................. 9

Awards..................................................................................................................................10

Troubleshooting Guide..................................................................................................10

Warranty.......................................................................................................................11-12

INTRODUCTION____________________________________________________

Congratulations!

You have just purchased one of the finest solid state power amplifiers made. Whether two, five or seven channels, your Cinema power amplifier is the perfect foundation for your home stereo or theater system. In addition to the awesome power, the Cinema power amplifier delivers flawless reproduction of musical detail and subtle special effects.

The Cinema Series solid state power amplifier features include:

• Remote trigger (works with + 4.2 to + 32 Volts DC, see page 5)

• Short circuit protection

• Thermal Protection circuits

• DC offset protection

• Matched 50 MHz multiple emitter output transistors

• Soft start circuit prevents “Brown outs” when amplifier is turned on

The following is an overview of the design characteristics of our solid state power amplifiers:

The input of the amplifier is fed into a high quality Burr-Brown op-amp for Balanced to Single-Ended conversion. This input circuit is connected to a constant current source, differential style with a current mirror. The pre-drive circuit is constant current Single-Ended Class A. The output is a follower stage that uses special “designed for audio” high speed power transistors that have excellent linearity characteristics. The power supply consists of an 800, 1,000 or 1400 VA toroidal power transformer and either two or four 33,000 uFd @ 80V electrolytic capacitors or 6 x 10,000 uFd @ 63V in the Cinema 7B. Special attention was paid to circuit stabilization and speed of the amplifier to reduce transient inter-modulation (TIM) distortion.

The Cinema Series power amplifiers have three protection circuits to prevent damage to your speaker and the power amplifier.

• AC Fuse - Fused with a 3.5A/7.5A for 240V and a 7.5A/15A for 120V.

• Thermal protection - if a channel overheats its output is disconnected until it cools down to a safe

operating temperature.

• DC offset sensor - If an amplifier malfunction or signal source malfunction occurs, the potential

exists for providing DC voltage to the loudspeaker. If this happens, the channel will automatically shut down. No damage can occur.

In building the Cinema Series power amplifiers significant effort has been focused on building an amplifier that delivers outstanding mechanical performance, is easy to use, and has sonic properties that will delight the most demanding customer. Thank you for choosing Cary Audio Design and enjoy your new power amplifier.

*Short circuit protection activates if load impedance is about 1.6 ohms or less. Constant tripping of short circuit can degrade output transistors. To reset protection, turn the amplifier off, wait 10 seconds, then turn the amplifier on.

SPECIFICATIONS ___________________________________________________

This section describes the basic specifications of the Cinema 2, 5 and 7B power amplifiers at the time of printing. Specifications are subject to change without notice or obligation. When the following cautionary terms are used in this manual, these definitions apply:

WARNING

Electrical hazard! Misuse or failure to follow instructions properly may result in personal injury or death!

CAUTION

No risk or personal injury; however, misuse or failure to follow instructions may result in damage to equipment.

NOTE

No risk of personal injury or equipment damage; however, misuse or failure to follow instructions may prevent proper performance of the equipment.

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RATED POWER OUTPUT Cinema 2, 5 200 watts/channel - 8 ohms, Class A/B 350 watts/channel – 4 ohms Cinema 7B 100 watts/channel – 8 ohms Class A/B 160 watts/channel – 4 ohms

DAMPING FACTOR >100 @ 8 Ohms

PEAK CURRENT Cinema 2, 5 - 35 amps Cinema 7B - 20 amps

FREQUENCY RESPONSE Cinema 2, 5 10 to 50 kHz +/-0.1 dB Cinema 7B 5 Hz to 40 kHz +/-0 dB @ 1 watt

5 Hz to 100 kHz +0/-3 dB @ 1 watt

INPUT POWER 117 or 234 VAC @ 50/60 Hz, depending on market REQUIREMENTS

POWER CONSUMPTION Idling with no signal input:

Cinema 2 – 90 Watts, Cinema 5 – 155 Watts, Cinema 7B - 115 Watts

All channels, 8-ohm load, full power: Cinema 2 – 1000 Watts, Cinema 5 – 2500 Watts, Cinema 7B - 1700 Watts

INPUT IMPEDANCE Cinema 2, 5 44 K ohms for single-ended RCA inputs

+ 9 hidden pages

Cary Audio Cinema 7B Owner's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual