AV-receiver Harman/Kardon AVR 5550

By switching device capabilities Harman/Kardon AVR 5550 surpasses all competitors. Only he has a front panel AV-port with a coaxial connector for "numbers", and able to work at the reception, and signal transduction (easily organize overwrite any device). Moreover, when configuring your system, you can specify whether a particular parameter is constant for all inputs or individual for each signal. This allows, for example, enter a separate cut-off frequency for each speaker. Receiver Harman/Kardon AVR 5550 is equipped with HDCD decoder stream and MP3, RS-232 port (for a complete AV-management system with the computer) and A-Bus bus for communication with control Multiroom-modules. The design is well thought out: audio and video circuitry possible spaced and separated from the mains transformer powerful massive radiator output stages (made in the form of complicated cross-section of the box, on which at a very high volume of air is forced fan).

Amplifier Surround back channels can be switched to the second scoring zone, while the first is still possible to listen to 5.1 sound. Receiver Harman/Kardon AVR 5550 is equipped with two remotes. The first - a full-featured student with backlighting is used primarily for installation. Built-in sound level meter it makes setting up the volume on the channels. Second remote control - compact, controls only the basic functions. Receiver is ready to support the idea branched Multiroom-home entertainment system and the best way manifest itself when playing multi-channel soundtracks.

Technical comment

Response of the amplifier has an easy climb in the low-field (0.2 dB - 30 Hz), which is not reflected on the sound. Damping level is high (nearly 80 units), the said developer value output (70 watts per channel), in fact twice (about 135 W), which does not restrict the choice of speakers. Stereo signal should be sent in analog form: here the separation is higher than on the "figure", in addition, after analog conversion are traces of the difference frequency. In 5.1 - separation entry in Harman/Kardon AVR 5550 - at a high level (about 70 dB), but no different symmetry (in DD EX/DTS ES - a result similar). Such a situation does not prevent connection SACD/DVD-Audio- player to the 5.1 input.

Harman/Kardon AVR 5550 AV-receiver photo