In the new AV receivers from Rotel you will sure quick to agree: both are a true HiFi sensation.
- Rotel RSX-1550
- Data sheet
In addition to tradition, latest technology finds place in the silver housing. Da adorn four small HDMI interface on the back of the receiver, in addition to one output. Of course, that correspond to the current and the Blu-ray disc of indispensable standard HDMI 1.3a. To safely reach also streams from your Blu-ray player to the receiver and be there with the assistance of the appropriate decoder in audible HD sound worlds transformed, no matter whether Dolby True HD or DTS HD Master audio.
The digital image, however, completely rely on the arts of the player supplying to the receiver and locks the data without further processing further. Purists are grateful for the circumvention of any possible source of interference. For analog video signals is a Faroudja chip to place, but again the incoming YUV, S-video or composite images expertly and properly prepared for the HDMI output; optionally with maximum resolution of 1920 pixels times 1080 lines in full resolution. However, aren’t exaggerations about the attributes of a gentleman from the House of Rotel. Fully automatic calibration options such as docking sites for MP3 player of all kinds looking for fashions for the 15 receivers in vain. The tone correction possibilities of individual boxes are limited to duration, level, and tone controls for treble and bass.
The claims of sound cinema are usually amply met with four DSP modes, several virtual surround channels and decoding options for various Dolby Digital and DTS enhancements. Since each input individually configure can of the type of video signal to the favored surround version.
The astute reader will but now suspiciously looked at the prices of the two receiver and wonder mildly about 600 euro difference. So, let’s get to the differences of the two amplifiers.
The “little” Rotel RSX-1550, dominated while the 7.1 surround processing, but only five stages. According to Adam Riese two too little. Who cannot do without the seven-channel sound, forcibly must dock at an external amplifier via the offered pre outs, then there is room for surround back. Or for adjoining room also possible operation. It has a high-quality stereo power amplifier at hand, the front channels directly on the receiver to the supply of the other areas can be also elegantly redirect.
Seven channels or five analog or digital? Similar to the two siblings, Rotel are external, they reveal but huge sound philosophical differences. For HiFi testers of course the ideal pretext for long listening sessions. After the obligatory warm up time that you should enjoy especially the switching amplifiers, was also equal to the fullest.
HD sound, brought out via HDMI, with resolutions up to 96 kHz and 24 bit – of course for each of the six channels. Already so game played the small RSX-1550, that the tester had to equal access for heavy caliber and former champion of the new sound formats, the Denon AVR-4308, (AUDIO 2/08, 2500 euros). The Rotel revealed his clay art in a river of rich, rolling bass and shimmering overtones. All cylinders firing sound cascades of Denon knew with his strength and his control to impress; the RSX-1550 but showed an elegant, lively and almost natural-looking performance in fine classical music and jazz.
A similar listening experience offered digital, the data reduced, almost already antiquated-looking format of the DVD with Dolby. The characters of the receiver have been preserved; the RSX-1550 were of course with beautiful vocals. The RSX-1560 made even the smallest variations of volume can be heard, no matter if quieter stop of a piano or shipcame bang.
This also in level areas that already would blush in the transistors other receivers. The Denon liked keeping the smaller Rotel with his musically more Pliant alignment in chess; When the RSX-1560 but he, too, in the face of the absolute sound control had to stretch the weapons.
Finally, the last round was the analog stereo sound. The small Rotel showed again subtle, but in comparison a little more comfortable and softer than the Denon. This could breathe more life into the pits with his bi-Amping capability. His biggest opponent, the RSX-1560, mastered this art but also – and showed it. Dyed slightly warmer than the Denon, he remained dynamic until the last minute.
Rotel RSX 1550
Technical data and test results
|Genus (REC / GM / input.)||Receiver|
|Dimensions||43.1 x 16.2 x 43.5 cm|
|Power amplifiers, number||5|
|Decoder for HD formats|
|Remote control||Remote control|
|Lip sync||No /.|
|Bands / channels||0 / 0|
|Video standards converter||Composite video < > SV < > 3 K <hdmi< d=”” len=”6″> </hdmi<>|
|Switched network jacks||0|
|Autom. Calibration||only level / removal|
|Digital inputs RCA / front||3 / 0|
|Optical digital inputs / front||4 / 0|
|Digital inputs HDMI / front||4 / 0|
|HDMI version number|
|Digital output HDMI||1|
|Digital RCA outputs||1|
|Optical digital outputs||1|
|USB ports front / rear||0 / 0|
|Multi channel input|
|True sine wave power stereo 8 ohm / 4 ohm||110.0 W / 170,0 W|
|Music power stereo 8 ohm / 4 ohm||128.0 W / 196.0 W|
|RMS power 5-channel 8 ohm / 4 ohm||83.0 W / 113.0 W|
|Music performance 5-Channel 4 ohm / 8 ohm||117,0 W / 94,0 W|
|RMS power 5-Channel 4 ohm||113.0 W|
|Music performance 7-Channel 4 ohm / 8 ohm||0 W / 0 W|
|HiFi output power 4 ohm||0 W|
|effective pulse power front 4 ohm||0 W|
|effective pulse power 4 ohm Center / surround 4 Ohms||0 W / 0 W|
|maximum output voltage Z1 / Z2||0 V / 0 V|
|maximum output voltage Z3||0 V|
|Number of appropriate channels||0|
|Surround RMS power 8 ohm / 4 ohm||0 W / 0 W|
|Surround RMS power 8 ohm / 4 ohm stp||0 W / 0 W|
|Noise line / multi channel input||99.0 dB / 0 dB|
|Noise phono MM / phono standard system||0 dB / 0 dB|
|Noise phono MC||3 GB|
|Digital noise||99.0 dB|
|Front noise ProLogic||81.0 dB|
|Noise ProLogic Center||84.0 dB|
|Power consumption standby / operating||4.5 W / 79 W|
|natural, subtle sound with beautiful voice figure; great HD artist|
|conservative & accommodation|
|Price / performance||outstanding|
|Sound judgment||outstanding 97|
|tested in issue:||2 / 09|