Congratulations Burson you have created an exceptional amplifier in the Timekeeper 3XGT this have been the amplifier I’ve been looking for. The amplifier is transparent, fluid and dynamic particularly in the bass region. The option to run in pure class A and AB is amazing. The technology in the supercharger power supply is game changing. The option to change Op Amps to tune the sound is another great option for tweakers like myself. It’s a 10/10 from me.
The System
Listening with
Dynaudio Heritage Specials
Gustard A26 · DAC / streamer / preamp (AK4191 + dual AK4499EX)
- Output impedance: 100 Ω (search-listed; not on fetched page)
- Output voltage: RCA 2.5 V (fixed) · XLR 5.0 V (fixed)
- Inputs: USB, I2S, LAN (to 32/768, DSD512); S/PDIF inputs; 10 MHz clock in
- Outputs: XLR; RCA
- DAC / chipset: AKM AK4191 + 2x AK4499EX
- Other: DR >127 dB; SNR >126 dB; dual toroidal transformers
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Schiit Freya+ · Preamp: balanced remote preamp: passive / JFET buffer / differential tube (6SN7) / LISST modes
- Frequency response: 20 Hz – 20 kHz (-0.2 dB) (buffer; 3 Hz – 500 kHz -3 dB)
- Output impedance: 75 Ω (SE); 600 Ω (balanced) (buffer / tube modes)
- Gain: passive / buffer 0 dB; tube 12 dB; LISST 14 dB
- Inputs: 2x XLR pairs; 3x RCA pairs
- Input impedance: 10 kΩ
- Outputs: 1x XLR pair; 2x RCA pairs
- Other: THD <0.004% buffer / <0.01% tube / <0.005% LISST (1 V); SNR >120 / >115 / >114 dB (ref 2 V); 128-step relay attenuator; 40 W; 11 lb
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Burson
- Power: 8 Ω: 110 (high gain); 30 (low gain) · 4 Ω: 180 (high gain); 55 (low gain)
- Output impedance: <0.015 Ω (20 Hz-20 kHz)
- Gain: 29 dB; 2 gain levels (high / low)
- Inputs: 1x RCA; 1x XLR
- Input impedance: 100 kΩ (SE); 200 kΩ (balanced)
- Outputs: speaker binding posts
- Other: Model R300 (“GT3”); max power 210 W; THD <0.03% @ 1 kHz; S/N 108 dB; Super Charger 32V/6.5A
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