General Specifications
Channels: 2
Gain: 28dB
Input Impedance: 47K
Bandwidth: 3Hz - 50Khz, -3dB points
Minimum load: 2 ohm
Damping Factor: >1000
Output Devices: High linearity, high power ThermalTrak Transistors (BJT), 6 devices per channel.
Amplifier Class: Class AB with first 5W class A
Mains Voltage: 240VAC, 50Hz
Distortion: THD+N 0.001%
Power Consumption: 20W operation with no signal. 5W standby.
Power Output
2 ohm 4 ohm 8 ohm
RMS continuous per channel, individually driven 440W 325W 205W
RMS continuous per channel, both channels driven 275W 240W 160W
PEAK power per channel, individually driven 880W 650W 410W
PEAK power per channel, both channels driven 550W 480W 320W
Dimensions: 430mm (W) x 240mm (D) x 132mm (H)
Weight: TBA
Features:
Balanced XLR Inputs
Neutrik A series "state of the art" XLR connectors.
Active balanced line receivers utilising InGenius Technology.
High CMRR over a wide range of source impedance imbalances.
Maintains balance under real world conditions.
Very low noise and distortion.
Transformer like performance but with wider bandwidth, lower distortion and higher transparency.
RCA Single Ended Inputs
WBT Topline Connectors - pure copper with 24 carat gold plating.
National Semiconductor ultra high quality input buffer with extremely low distortion and noise.
DC coupling option for operation with no signal path capacitors.
Output Stage
ThermalTrak output devices eliminate thermal lag time and bias trimming.
Instant thermal bias with perfect thermal stability.
No warm up period requirement.
Class AB operation with first 5W pure class A.
Neutrik Speakon output connectors or WBT pure copper 24 carat gold plated binding posts.
WBT binding posts are CE and IEC compliant.
Microprocessor Controlled
Auto signal detection*. Software algorithm driven, no false triggers!
Auto power down*. Software algorithm driven, no false cut-outs!
Output power usage and clipping indicator*
Clip detection with instant self protect*
Real time power supply and temperature monitoring with thermal limit cutout.
"Stealth" mode for invisible operation* - no more annoying LEDs!
Printed Circuit Board
4 Layer PCB construction with twice the industry standard copper thickness.
100% symmetrical channel layout.
Optimised star grounding avoids output, supply and bypass return currents from flowing in sensitive signal paths.
Field Cancellation Typology (FCT) dramatically reduces power rail and output stage radiation resulting in lower noise and interference.
Careful layout and 100% PCB connectivity eliminates wire looms and messy "rats nest" construction.
Ultra-sonic cleaning removes all solder flux residue and impurities.
Power Supply
Custom low noise and low radiation toroidal transformer includes electrostatic screen and magnetic shield.
Isolated power supply section further reduces 'hum and buzz' interference.
High Current 35A bridge rectifier.
NICHICON MUSE and WIMA capacitors.
Gold plated solid copper buss bars.
LINEAR TECHNOLOGY audiophile grade low noise voltage regulators. Independent complementary regulators per channel.
Circuitry & Operation
WIMA polypropylene film capacitors.
NICHICON MUSE capacitors.
VISHAY Bulk Metal Z-Foil audio resistors ensure high resolution and ultra low noise floor.
MILLS high power audio resistors, completely non-magnetic and non-inductive.
Input switching by fully sealed high reliability telecom grade relays (separate relay per channel).
No turn on/off "thump".
"Click and pop" free transition from standby to play mode.
Edgar Kramer
SGR: Audio started as a hobby and grew into a business from a shared passion to build and achieve something better than average. We started from very humble beginnings, working out of a garage with no more than a few hand tools. Today we have a large factory equipped with multiple CNC machines and state of the art facilities. My father Harry’s audio background spans some 30 odd years now, detailing elements of importing and retail sales as well as product development. I’d call him hard to please but that's a good thing because he has a very good ear and when he is pleased with the sound then we know we're on to a winner. [review
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Edgar Kramer