Pure Class-A is ideal as it does not have crossover distortions associated with Class-B or Class-D amps. The resulting organic, responsive sound is undisputedly the best. However, Class-A amp makers face two challenges: power supply stress and heat dissipation. Following the traditional linear power supply approach, the resulting Class-A amp is inevitably heavy due to its transformer and heat-fin size and lacking driving power. Class-AB outputs the first few watts in Class-A and the rest in Class-B. Because it is more efficient, it can output more driving power. Still, the more watts it outputs in Class-A, the lower the distortion, the better it sounds. The Timekeeper GT is a Class-AB amp. Using our proprietary Max Current Power Supper (MCPS) and innovative cooling, it outputs significantly more wattage in Class-A than our competition while looking sexy in any living space.
Idling power is an important performance indicator when comparing Class-AB amps with similar outputs. The higher the idling power, the more it outputs in pure Class-A. But, traditionally, it also means a larger transformer, bigger heat-fins, more power caps and sky-rocketing production/transportation costs. As such, some elitist hyper amps proudly mention this spec, but most in the industry keep it on the hush. The TK-GT draws 100W on idle, spitting out the first 30Watts in pure Class-A. The result is a luscious vocal and sparkling high previously reserved for the fortunate few. The rest of its 180Watts propels any speakers to their full dynamics.
The GT is fully discrete without any integrated circuitries (ICs) on its audio path. Our Vivid discrete opamp gives it an unmistakable Burson house sound that is detailed, textured and layered. Its direct coupling circuitry features a fully differential input stage. By not using a transformer or coupling cap on its signal path, the GT achieves the highest dynamic response possible. Furthermore, being an independently powered monoblock, the TK-GT eliminates cross channel interference and delivers a bigger soundstage with a pure black background. Audio designing does not get more fanatic than this!
A power transformer is a coil of wire with very high resistance (impedance), restricting current delivery. Furthermore, it vibrates at 50Hz, creating noise in the audible range. As such, in traditional linear power supply designs, the quality of the transformer directly affects responsiveness and the noise floor. The TK-GT is the latest milestone in our power supply revolution, and our proprietary Max Current Power Supply (MCPS) is the reason why the TK-GT can be lifted with one hand yet performs at the highest level. A newly developed 210W Burson Super Charger converts noisy 50Hz main power to a clean, quiet DC torrent with almost no impedance. In addition, the TK-GT’s internal MCPS raises the voltage working frequency beyond 170Khz, pushing any remaining noise beyond human hearing.
Specification
Input impedance:
Single-ended: 100 kΩ / Balanced: 200 kΩ
Frequency response:
20 Hz to 20 kHz
THD:
<0.03% @ 1 kHz
Output impedance
<0.015Ω, 20 Hz to 20 kHz
Signal to Noise Ratio
108db
High Gain:
180W (4Ω)
110W (8Ω)
Low Gain:
55W (4Ω)
30W (8Ω)
Standby Power
>1W
Maximum Power
210W
Gain
29dB
Weight:
app. 5 kg / 11 lbs
Dimensions:
255mm x 270mm x 70mm
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