AVR 645

Successor Product:	AVR 3550HD
Made in:	China

Specifications

General Specifications

Power Requirements: AC 120V/60Hz

Power Consumption: 120W @ Power On, idle; 1272W @ rated power output (7 channels driven)

Digital Inputs (coaxial/optical): 3/3 on Rear; 1 (switchable to output)/1 on front; 1 USB on rear

Analog Inputs: 1 A/V on front panel (switchable to output)

Analog Inputs: 2 audio- only

Analog Inputs: 4 A/V on rear panel

Analog Inputs: 6-/8-channel input

Analog Inputs: The Bridge Digital Media Player

Analog Inputs: tuner

On-Screen Display: Yes, including component video

Multizone Capability: Audio; A-BUS Ready; RS-232 serial control port; surround back channels assignable to remote zone; ZR 10 remote

Auto Setup: EzSet/EQ room equalization

Remote Control: Backlit, eight-device, programmable learning remote (2-line LCD display)

Shipping Weight (System, Accessories, Packing): 47 lb (21.4kg)

MSRP U.S.: $1499.95 each

Audio Specifications

# of Amplifier Channels: 7

Continuous Average Power (FTC) per Channel (stereo mode): 90 Watts per channel, 20Hz – 20kHz, @ <0.07% THD, both channels driven into 8 ohms

Front L & R Channels: 75 Watts per channel @ <0.07% THD, 20Hz – 20kHz into 8 ohms

Center Channel: 75 Watts @ <0.07% THD, 20Hz – 20kHz into 8 ohms

Surround Channels (L & R Side, L & R Back): 75 Watts per channel @ <0.07% THD, 20Hz – 20kHz into 8 ohms

Input Level/Impedance: 200mV/47k ohms - Linear (High-Level)

Signal-to-Noise Ratio: 100dB (IHF-A)

Surround System Adjacent Channel Separation:

Dolby Pro Logic I and II: 40dB

Dolby Digital: 55dB

DTS: 55dB

Frequency Response: 10Hz – 130kHz (+0/-3dB @ 1 watt)

Transient Intermodulation Distortion (TIM): Unmeasurable

Slew Rate: 40V/µsec

Dimensions

Width: 17.3 inch (440mm)

Height: 6.5 inch (165mm)

Depth: 17.1 inch (435mm)

Weight: 41 lb (18.6kg)

Dimensions:

Carton Dimensions: 20.1 inch x 10 inch x 22.2 inch (510mm x 254mm x 565mm)

Video Specifications

Television Format: NTSC

Input Level/Impedance: 1Vp-p/75 ohms

Output Level/Impedance: 1V/75 ohms

Video Frequency Response:

Composite and S-Video: 10Hz – 8MHz (–3dB)

Component Video: 10Hz – 100MHz (–3dB)

HDMI: Version 1.1 with audio processing

Tuner Specifications

Frequency Range: AM... 520–1720kHz

Frequency Range: FM... 87.5 – 108.0MHz

Signal-to-Noise Ratio: AM... 45dB

Usable Sensitivity: FM... IHF 1.3µV/13.2dBf

Signal-to-Noise Ratio: FM... Mono/Stereo 70dB/68dB

Usable Sensitivity: AM... Loop 500µV

Distortion: AM... 1kHz, 50% Mod 0.8%

Distortion: FM... Mono/Stereo 0.2%/0.3%

Selectivity: AM... ± 10kHz, 30dB

Stereo Separation: FM... 40dB @ 1kHz

Selectivity: FM... ± 400kHz, 70dB

Image Rejection: FM... 80dB

IF Rejection: FM... 90dB

Amplifier Specifications

Amplifier Power (RMS): 75 x 7 @ 8 ohms, (20Hz – 20kHz, <0.07% THD) (all channels driven at full power)

High Instantaneous Current Capability (HCC): ± 50 Amps

Versatility at its best! The AVR 645 not only switches two HDMI; 1.1 sources, it is able to decode Dolby Digital, DTS and PCM audio streams from the HDMI inputs. Add USB audio, iPod connectivity and XM-Ready capability to our EzSet/EQ system and high-current amplifier, and the AVR 645 performs with ease. Equally impressive on the video side is transcoding so that all analog video inputs may be viewed via component outputs, and A/V Sync Delay, which reconnects the timing of sound and images. There is no better combination of sound and image anywhere.

FAQs & How-Tos

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Using my receiver, the picture on my TV is slightly out of sync with the audio. What's wrong?

This receiver has a feature called "A/V Sync Delay" that allows you to manually set dissimilar video and audio synchronization that may occur with certain types of Plasma and HDTV's. The instruction for this setting can be found in your owner's manual in the section "Delay Adjustments" or "Delay Settings".

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When I switch between analog and digital channels on my cable television set-top box, the picture distorts, but I have no problems when using other sources. How can I resolve the problem?

Please check the picture settings on your cable box, particularly the aspect ratio settings, which will vary depending on the brand and model of your cable box and on your local cable provider. You may wish to consult with your cable provider for more information on how to adjust the cable box's settings. Some settings, such as a setting to force an analog channel's native 4:3 aspect ratio to 16:9 widescreen to fit your display, may interfere with the cable system's copy-protection feature and cause distortion.

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Why doesn't the AVR respond when I use the remote control, even though my other products work just fine?

The remote is only capable of operating one device at a time (unless you have programmed advanced functions such as Volume, Channel or Transport control Punch-Through). When you press the Source Selector to operate your other product, such as the DVD player, the remote cannot control any other product, including the AVR, until you press the AVR Button again. To avoid your problem in the future, always press the AVR Button or appropriate Source Selector before you enter any command.

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