Harman Kardon - AVR 445 Solid state multi-channel receiver

A Beautiful object for audiophiles. It is from 2007 and works perfectly. It delivers exceptional sound for a good home cinema or music experience. It is a high-current-capability amplifier, meaning it can drive demanding speakers and maintain a strong sonic presence at any volume. The two remotes as well as the manual are supplied with the amplifier. Several options allow you to enjoy surround sound. You can route the sound through an optical jack, enable LOGIC 7 (the equivalent of Pro Logic IIx, but better), or use the analog RCA jacks. HDMI ports do not deliver compressed surround formats (Dolby Digital, DTS) but only 2.0 PCM.

LOGIC 7
Active-matrix decoding system developed by Lexicon and used in many Harman products, capable of converting two-channel signals into five- or seven-channel signals. This system offers optimized modes for video and musical tracks and a conventional stereo musical recording function. It was specifically designed for recording studios characterized by a powerful front-end, while distributing the sounds perceived beyond the room walls. An automotive version of this system adapts to the unique listening conditions inside cars. See Encoder/Decoder Matrix

High Current Capability (HCC)
The number of watts per channel is an incomplete measure of an amplifier’s power. In terms of dynamics and impact, it is the current that counts. The HCC capability is a general design approach encompassing everything from transformer design and capacitor size to discrete output circuitry and minimal use of feedback. This electronic system, comparable to a high-displacement, high-torque racing engine, yields audible results. You benefit from a magnificent transient response, tighter bass, and a stronger presence, regardless of the volume.

AUDIO
Mean continuous average power per channel (FTC):
80 W (20 Hz - 20 kHz, < 0.07% THD, 2 channels driven at 8 ohms)
Surround modes 6 channels, Power per channel:
Right and Left Front channels: 65 W (< 0.07% THD, 20 Hz - 20 kHz at 8 ohms)
Center Channel: 65 W (< 0.07% THD, 20 Hz - 20 kHz at 8 ohms)
Surround channels (side D & G, rear): 65 W (< 0.07% THD, 20 Hz - 20 kHz at 8 ohms)
Input sensitivity / linear impedance (high level): 200 mV / 47 kΩ
Signal-to-noise ratio (IHF-A): 100 dB
Crosstalk between adjacent surround channels:
Dolby Pro Logic I and II: 40 dB
Dolby Digital: 55 dB
DTS (Digital Theater System): 55 dB
Frequency response at 1 W (0 dB, -3 dB): 10 Hz - 130 kHz
High-frequency instantaneous current capacity: ±40 A
Sweep rate: 40 V/µs

Connectivity
8 digital audio inputs, 2 digital audio outputs
[6 inputs on the rear panel (3 optical, 3 coaxial), 2 inputs on the front panel (optical, coaxial switchable to output), 2 outputs on the rear panel (optical, coaxial)]
5 composite/S-Video Audio/Video inputs (V1,V2,V3,V4,DVD) 2 independent analog audio inputs (CD,TAPE)
7.1-channel independent audio inputs (8 Channel Direct Inputs)
7.1-channel Pre-out audio outputs
Front-panel, duplicated Composite/S-Vid inputs and selectable output (V4)
RS-232 port
1 dock connector for iPod station "The Bridge"

Settings
- EzSet EQ II: The EzSet EQ II system accounts for room volume and design to automatically adjust levels, delays, speaker size, and the cut-off frequencies for the loudspeakers and two subwoofers.
- Quadruple Bass Manager Crossover
Allows configuring different bass cut-off frequencies depending on the loudspeakers used: Group 1: Left and Right Front speakers, Group 2: Center speaker, Group 3: Surround speakers (SR, SL), Group 4: Surround back (SBR, SBL).
- Digital Bass Management
Allows analog-to-digital conversion of signals arriving on the "8CH direct input" and enables precise AVR settings based on the loudspeaker type used (Small / Large).
- Subwoofer crossover frequency: 40, 60, 80, 100, 120 and 200 Hz.
- Multi-room audio function and integrated multi-zone amplification: allows linking an additional amplifier for delivering audio to another room. In a 5.1 setup, the two surround back channels (SBR and SBL) can be directed to the multi-room zone and amplified directly by the AVR.
- A-Bus Ready / RS232: A-Bus allows remote control of the amplifier from an amplified keyboard and patented A-Bus. The RS232 port enables control of the amplifier via high-end home automation systems, as well as performing a software update.

Power supply: AC 220-240 V / 50 Hz
Power consumption: 120 W in standby, 1025 W maximum (7 channels driven)