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Class XD™ amplification designed to eliminate crossover distortion at low signal levels New balanced volume topology controllable in 1dB steps, giving very fine control, and superbly accurate channel balance Audiophile grade oversize toroidal transformer and substantial extruded heatsink allowing 2 x 120 Watts RMS into 8 Ohms or 2 x 200W into 4 ohms. Separate transformer taps for left and right channels, twin rectifiers and separate PSUs for dual mono operation of the left and right power amplifiers A separate toroidal transformer supplies the preamp making the 851A effectively a Pre and Power amp combination in one box CAP5 protection technology for trouble free operation Acoustically damped full metal chassis with thick brushed aluminium front panel Customisable front panel display Balanced and unbalanced analogue audio inputs for superior connectivity RS232 controllable Eco-friendly Available in black and silver finishes
| High sound quality and sophisticated design based on Yamahaʼs rich experience and high-end model concepts. A HiFi Amplifi er for enjoying excellent sound.
- Yamaha high sound quality, created by rich experience and tradition, and high technological expertise
- Pure Direct Mode for greater sound purity
- Simple and sophisticated design
- Phono MM terminal for vinyl playback
- Screw-type speaker terminals
- Speaker selector and speaker terminals for two systems
- Simple design remote control
- Head phone terminal
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Audio Connectivity Features | Analog Audio Input (Rear) | 5 | Phono Input | 1 | FM Tuner Features | Frequency Range MHz | 87.5 MHz | Usable Sensitivity (IHF) | 1.3 μV/13.2 dBf | Signal-to-Noise Ratio (Mono/Stereo) | 70 dB/68 dB | Distortion (Mono/Stereo) | 0.2%/0.3% | Stereo Separation @ 1kHz | 40 dB | Selectivity ±400kHz | 70 dB | AM Tuner Specifications | Frequency Range kHz | 520 kHz | Signal-to-Noise Ratio | 38 dB | Usable Sensitivity (Loop) | 500 μV | Selectivity | (±10 kHz): 30 dB | Distortion | (1 kHz, 50% mod): 1.0% | General Specifications | Power Requirement | 120V AC, 60Hz (USA); 220V – 240V AC, 50Hz/60Hz (EU) | Power Consumption (full power/idle) | 310W maximum, | Dimensions (H x W x D – Metric/English) | 121 mm x 440 mm x 300 mm | | For a long time, installers worldwide have been unhappy with consumer electronics and they were looking for a professional integrated amplifier for use in commercial environments, boardrooms or small businesses designed for 24/7 operation. Therefore Apart developed the CONCEPT1, a stereo or two mono channel (2 x 80 watts @ 4 ohms) amplifier for small and medium-sized projects.
This CONCEPT1 2-zone integrated stereo amplifier can operate with one stereo zone, two volume-linked mono zones or two individual-volume mono zones. The unit can be controlled via RS232 what makes integration into your AV solution possible. The built-in limiters and system design guarantee a failsafe solution 24 hours a day, 7 days a week.
To make the life of the end-user as easy as can be, the CONCEPT1 has user settings and installer settings. Only the absolute
19" (483 mm wide) rack mounting |
Yes |
height- rack units (1U=44 mm) |
2 U |
depth (build in) |
293 mm |
power supply |
230 VAC volts |
power consumption (max) |
< 200 watts |
output power RMS 4 ohms |
2 x 80 watts |
output power RMS 8 ohms |
2 x 60 watts |
music program power |
100 watts |
minimum impedance load |
4 ohms |
zone outputs |
2 |
MIC inputs balanced |
1 |
line input unbalanced |
4 |
tone control |
Yes |
RS232 (serial communication port) |
Yes |
priority switch |
2 |
priority levels |
1 |
cooling system |
convection |
applicable low impedance |
Yes |
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Driver Complement
Electrical
Dimensions
Cabinet Size 3-1/2" H x 17" W x 12-5/8" D
(8.89cm H x 43.18cm W x 32.07cm D)
Shipping/Other
Shipping unit: each
Total Shipping Weight 14.00 lbs. (6.35kgs) |
Power Output One Channel Driven :275 watts
Dimensions (Without Brackets, Including Feet) :17-1/16" W x 9-5/8" D x 3-11/16" H (43.34 cm W x 24.45 cm D x 9.37 cm H)
Weight | Metric :28 lbs | 12.70 kg
Dimensions (With Brackets, Feet Removed) :19-1/16" W x 9-5/8" D x 3-7/16" H (41.42 cm W x 24.45 cm D x 8.73 cm H)
Finish :Available in both silver and black
Power Output Two Channels Driven :230 watts each
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