Bryston 4B SST2 Amplifier Silver with Handles and Remaining Warranty until 2029!

Bryston 4B SST2 Amplifier Silver with Handles and Remaining Warranty until 2029!   
This was my baby, but now I have another. I would like her to have a good home! It looks brand very nice, with only one small smudge ontop. Comes with all of the original packaging and a power cable.
Best of all it includes the remaining period of its factory 20-year warranty (April 2029)!!
This unit is equally suitable for your home or a studio, and should be able to power the most demanding speakers. 
Retail is $5k so here's your chance at a great bargain.  Under Warranty until 2029!! 
I am willing to review SERIOUS offers.   
DESCRIPTION:
The 4BSST2 is a dual mono design audio power amplifier with two channels of each. Each channel has switch selectable balanced and single-ended inputs. Each channel also has switch selectable gains of 29dB(1v)or 23dB(2v). The 4BSST2 includes SoftStart power control circuitry to eliminate high inrush currents when A/C power is applied. The power-up or turn-on of the4BSST2 may be activated by the push-button power switch on the front panel or via hard-wired remote control voltage.  
SPECIFICATIONS:
Design: Two-Channel Solid State Power Amplifier
Power Output: 300 Watts RMS x 2 into 8 Ohms/500 Watts per channel into 4 Ohms
MFR: 1Hz – 100kHz
Inputs: RCA Unbalanced, XLR Balanced
Input Impedance: 50k Ohms Unbalanced, 20k Ohms Balanced
THD+N: 0.003%
Dimensions: 5.25″H x 17.25″W x 19″D
Shipping Weight: 68 Pounds   
4BSST2 TECHNICAL SPECIFICATIONS from the owners manual: 
Power Output: 300 watts per channel into 8 ohms, 500 watts per channel into 4 ohms
Gain: 29dB position = 28.28V/V 23dB position =14.14V/V
Sensitivity: High: 1.0Vin = 100W out with an 8Ω load1.8Vin =300W out with an 8Ω load Low: 2.0Vin = 100W out with an 8Ω load 3.6Vin = 300Wout with an 8Ω load
Input Impedance: Individual mode: Single ended ≈ 60K Ohms
Balanced ≈ 20K Ohms
Bridged mode: Single ended ≈ 15K Ohms
Balanced ≈ 10K Ohms
IMD or THD + noise: < 0.005% 20Hz to 20kHz at 300 watts into 8 W
< 0.007% 20Hz to 20kHz at 500 watts into 4 W
Noise: Measured with input shorted, 20 Hz to 20K Hz.
>110dB below rated output 29dB gain (- 75 dBu)
>113dB below rated output 23dB gain (- 78 dBu)
Slew Rate: > 60 volts per microsecond
Power Bandwidth: < 1 Hz to over 100 kHz Damping Factor: Over 500 at 20 Hz, ref. 8 ohms
Footprint: 19” version
Power Consumption & Heat Load:
At Idle: 170 Watts
Max. Heat Dissipation: 580 BTU/Hr.
2 channels @ 300W into 8 ohms: 1280 Watts
Max. Heat Dissipation: 2320 BTU/Hr.
2 channels @ 500W into 4 ohms: 2100 Watts
Max. Heat Dissipation: 3750 BTU/Hr.
Bridged @ 900W @ 8 ohms: 2040 Watts Max.
Heat Dissipation: 3890 BTU/Hr.
Item      Included: Original Box and a power cable.
Physical Condition          8.9
Working Condition         10