Class AB power amplifier perfectly matched to a wide variety of loudspeakers, through its selectable damping factor. The proprietary optical BIAS offers high power combined with very low distortion - it controls the reference voltage with great precision and stability compared to traditional systems. The optical signal analysis takes place separately from the audio path, ensuring loudspeaker protection and unbeatable performance. The Gold Note PA-1175 MkII is designed to minimise all kinds of RFI and EMI interference, taking advantage of the thick aluminium panels featuring the typical Gold Note design.
BTL [Bridge-Tied-Load] technology allows the stereo amplifier to be bridged, transforming it into a mono power amp and increasing its power output from 200W@8Ω per channel to the considerable 520W@8Ω per channel. With this feature, the most demanding loudspeakers on the market can be easily driven.
The PA-1175 MkII power transformer is a special toroidal design featuring a spiral core. The refined mechanical process makes the core completely stable, cancelling out any mechanical vibrations and guaranteeing exceptional performance and perfect isolation. A small secondary transformer takes care of all auxiliary functions to preserve the audio signal.
The PA-1175 MkII also features a proprietary technology that allows the damping factor to be selected directly from the front panel, enabling all types of loudspeakers to be driven.
Setting the damping factor to 250DF allows the full potential of large, low-sensitivity loudspeakers to be exploited, while the value at 25DF is a perfect match for high-efficiency loudspeakers or small monitors that do not like the high current output of large amplifiers.
Main Features
POWER OUTPUT 200W@8Ω per channel (520W@8Ω in mono BTL)
FREQUENCY RESPONSE 1Hz – 100KHz @ ± 1dB
THD (TOTAL HARMONIC DISTORTION) <0.01% @ 20Hz-20kHz
SIGNAL TO NOISE RATIO 110dB
DAMPING FACTOR High (250) or low (25)
SLEW RATE 20V/µs
Inputs and Outputs
AUDIO INPUTS 1x RCA unbalanced1x XLR balanced
INPUT SENSITIVTY RCA 1VXLR 4V
INPUT IMPEDANCE 47kΩ
AUDIO OUTPUTS Speaker terminals: Gold-plated binding posts
Power
POWER CONSUMPTION 1200W max – 1,2W idle
POWER SUPPLY 100-120V or 220-240V, 50/60Hz
POWER TRANSFORMERS 640VA
FUSE (220/240V) 6,3A T
FUSE (100/120V) 10A T
Dimensions and weight
DIMENSIONS 430mm W, 135mm H, 370mm D - net
590mm W, 510mm H, 460mm D - boxed
WEIGHT(Kgs) 20.5 – net
27 – boxed
