(English) 
The R1-450 Pro is 4-channel 5U rack-mount power amplifier engineered for the most demanding professional recording, mixing, and immersive audio environments.
Each of the four 150 W discrete MOSFET Class A/B amplifier channels features its own dedicated power transformer, ensuring very low crosstalk and the ability to deliver full rated power with all channels driven.
A class leading input stage provides exceptional common mode rejection across the audio bandwidth, reducing unwanted interference at the input by at least 10,000 x. This makes the amplifier ideally suited to electrically noisy environments such as busy machine rooms and complex multi-room facilities.
With fan-less convection cooling, the R1-450 Pro operates silently—perfect when installed in control rooms—while thermal and dc offset protection and remote power on/off trigger inputs allow flexible and reliable installation.
QUAD-MONO 5U/19” POWER AMPLIFIER ENGINEERED FOR A WIDE RANGE OF DEMANDING PRO AUDIO INSTALLATION APPLICATIONS.
4 X INDEPENDENT HIGH PERFORMANCE 150W GROUNDED-SOURCE MOSFET AB POWER AMPLIFIER CHANNELS.
VERY LOW NOISE & CROSSTALK PLUS EXCEPTIONALLY HIGH COMMON MODE REJECTION BALANCED XLR INPUTS & SPEAKER LEVEL AUDIO OUTPUTS VIA NEUTRIK NL4 CONNECTORS.
FRONT PANEL MOUNTED BI-COLOUR LEDS DISPLAY POWER ON/OFF AND LIMITER 'ACTIVE'.
REAR PANEL MOUNTED REMOTE TRIGGER ON/OFF INPUTS.
THERMAL AND DC OFFSET PROTECTION.
CONVECTION COOLED
ELECTRONIC SPECIFICATIONS - SCM105AiW PRO
Balanced Input: Rear Panel Mounted Female XLR, pin 2 hot.
Input Impedance: 20kΩ (differential).
CMRR: > 80dB (20hz to 20kHz).
Input Sensitivity: 8.9dBu / 2.15Vrms (ref. 150W).
Amplifier type: Grounded Source MOSFET Class AB, convection cooled.
Output Power: 150W (continuous, at a a given distortion level? 8Ω).
THD+N: 0.0007% / -103dB (1kHz, 20kHz bandwidth, 1dB below full power).
Residual noise: 39uV (20hz to 20kHz).
S+N/N : 119dB (ref. 150W unweighted).
Frequency Response: <5Hz to >400kHz (-3dB).
Crosstalk: >100dB (20Hz to 20kHz).
Damping factor: >500.
Limiter: ATC Active FET Momentary Gain Reduction, limiter 'active' indicated on front panel.
Output Connection: NL4 (pins 1+, 1-).
Electronic Amp Protection: Amplifier D.C Offset and over-temperature indicated on rear panel.
Power Consumption: Standby 4W / 4.6VA, Idle 82W / 117VA, 1/8th power 361W / 478VA, Full power 956W / 1161VA.
Mains Input: 220-230V, 115V - Factory set. Please observe panel markings and labels.
Heat Output: Standby 13.6 BTU/hr, Idle 278 BTU/hr, 1/8th power 975 BTU/hr, Full power 1215 BTU/hr.
Additional: Standby mode via 1/8”/3.5mm Jack socket & 3.5mm right angle header
PHYSICAL SPECIFICATIONS
Net Weight: 26kg / 57.3lbs.
Product Dimensions: (H x W x D): 221 x 483 x 450mm / 811/16 x 29 x 1723/32 inches.
See data sheet for a detailed drawing.
