Gold Note PA-1175 Power Amplifier
- Regular price £4,363.00
Here is Gold Note's first stereo amplifier, our latest creation features all the innovations that have always distinguished our designs: PA-1175 merges the knowledge of the acclaimed Demidoff single ended amplifiers with high power rate never reached before as well as new innovative technologies.
PA-1175 is our first stereo Power Amplifier: a new design that features 4 matched pair of transistors per channel with a proprietary Gold Note Optical BIAS and a constant current generator to achieve high-current and high-power rates with ultra low distortion.
Our proprietary and innovative Optical BIAS control the voltage reference of the unit: it features optical decoupling to overcome the inefficient and downgrading solutions of traditional electronics, optically analysing the audio signal while being completely separated from the audio signal path for the highest protection and unbeatable performance.
The BTL technology [Bridge-Tied-Load] allow the unit to be easily bridged in order to work as a mono amplifier, doubling its already great power rate from 175W per channel @ 8ohm up to a considerably 350W per channel.
The flexibility of PA-1175 and its performance can be pushed even further when used as a mono unit with speakers that really requires high power, massive energy and quality watts.
For PA-1175 we developed a custom 630VA toroidal transformer with a unique cut spiral nucleus: the refined mechanical process makes the nucleus completely stable, cancelling any mechanical vibration to guarantee a terrific effect and perfect insulation, further enhanced by the use of original Ducati silent blocks.
A secondary small 6VA transformer powers the auxiliary functions with dedicated circuits outside of the audio signal path.
PA-1175 is a unique power amplifier: it features an adjustable damping factor technology that you can easily select straight from the frontal panel.
Changing the Damping Factor to 250 or 25 will let you find the ideal match between PA-1175 and your speakers: use a 250DF to get the power and control necessary to drive large, difficult speakers or set it on 25DF to use it as a low power tube amplifier, perfect to drive high sensitivity speakers and smaller speakers.
To avoid any RFI and Emi potential issue, we have built PA-1175 starting with a massive solid steel chassis and adding thick aluminium panels.
HIGH POWER AMP
PA-1175 is a 175Watt per channel @ 8ohm Stereo Power Amplifier bridgeable to have a mono 350Watt per channel
GOLD NOTE AUDIO DESIGN
Single-End 8 transistors per channel powered amplifier GN Design derivated from the Diamond Line
OPTICAL BIAS REGULATION
Full innovative GN optical BIAS regulation design allows ultra low distortion clean power music signal
Innovative GN design Optical Output Protection enable best audio performance
ADJUSTABLE DAMPING FACTOR
Adjustable GN property Damping Factor 250/25 playing alternatively low sensitivity difficult speakers and easy load or mini monitors
Power Amplifier with optical BIAS
Power output: 175W per channel @ 8Ω and 350W @ 8Ω in mono BTL
Frequency response: 1Hz-100kHz at +/-1dB
THD – Total Harmonic Distortion: <0.01%THD @ 20Hz-20kHz
Signal to Noise ratio: -110dB
Damping factor: Selectable 250 or 25
Slew rate: 20V/µs
Stereo RCA, stereo XLR balanced
Input sensitivity: 1000mV on RCA and 4000mV on XLR
Input impedance: 47Kohm
Dimensions: 430mm W | 135mm H | 370mm D
Weight: 21 kg
Speakers: Gold Note BP-01 Rhodium Plated Binding Posts
Mains supply: 100 to 245V, 50/60Hz, depending on market destination not convertible
Power transformers: 630VA Toroidal Customized Audio Power Transformer and 6VA transformer for all service out of the audio signal path
Power consumption: 800W max – <1W idle
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