T100SPA Stereo Power Amplifier
“This is the quietest power amplifier I have had the pleasure of using, as soon as you put a decent recording on you can hear so much of the low level details that it’s uncanny.”
Jason Kennedy reviews the T100SPA
Performance
When you listen to a Quiescent T100, you’ll immediately notice something that most other amplifiers—even those costing more—cannot match: an extraordinary quietness that makes every musical detail become alive. Soft passages feel intimate, crescendos retain their power without harshness, and the space between notes is rendered with breathtaking realism. Unlike many high-end amplifiers that may emphasise raw power or tonal colouration, the T100 focuses on purity, transparency, and subtlety, revealing nuances in familiar recordings you may never have noticed before.
If you value clarity, precision, and the emotional impact of music, the Quiescent T100 doesn’t just play your recordings—it brings them to life. Experiencing one in your own system is the only way to appreciate how it transforms your listening and enjoyment of music.
Technology
The Quiescent T100SPA stereo amplifier delivers a captivating, detailed, and lifelike performance thanks to its high-bandwidth design and minimal component count. Advanced engineering, including low-inductance MOSFET modules, digitally controlled adaptive bias calibration, vibration-isolated transformers, and proprietary noise reduction, ensures minimal interference and maximum dynamic accuracy. EMI/RFI absorption protects the musical signal without altering its character, maintaining clarity and detail. The result is a compact, single-box amplifier that reveals the subtlest nuances while remaining fully in tune with the music.
Specifications
Rated at 130W per channel into 8Ω, the T100SPA stereo power amplifier drives effortless power into the most demanding loads thanks to its patented QPower™ technology.
Technology
The Quiescent T100SPA is a high-performance stereo amplifier that delivers fast, precise, and engaging sound. Its design focuses on keeping the music clean and free from unwanted noise, especially vibrations that can blur details or reduce dynamic energy.
This is achieved through several measures, including a quiet, high-quality power supply with specialised transformers, careful vibration protection around sensitive electronics, separate channels with independent heatsinks, and premium components in the power supply and filters. The QPower™ system further reduces vibrations and electrical noise, ensuring the signal remains pure even under the most demanding conditions.
The digitally controlled adaptive bias control ensures that the amplifier boards operate exactly as needed to give consistent and unwavering performance regardless of the supply of the voltage at the mains socket.
The amplifier’s carefully designed case and heatsinks also prevent vibrations and electrical interference, while advanced current-feedback circuitry and high bandwidth ensure the music is detailed, precise, and transparent. Together, these features produce a wide, accurate soundstage with exceptional depth. This is because the T100 has an extremely low noise floor, allowing you to hear every subtle nuance and emotion in the recording.
Specifications
Audio Outputs
Minimum Load Impedance
2Ω
Power Output (rms)
130W per channel into 8Ω
200W per channel into 4Ω
Gain
26.5dB
Frequency Response
-3dB at 0.5Hz to 600kHz
Slew Rate
91V/us
THD @24W output into 8Ω load
(1kHz sinusoidal signal)
0.03%
S/N Ratio
120dB
Terminals
WBT nextgen™ Ag Silver conductor binding posts
Audio Inputs
Impedance
10kΩ
Sensitivity
1.6V
Sockets
2 x WBT nextgen™ Ag Silver conductor phono or 2 x silver conductor XLR (switchable)
Grounding
Chassis
M5 Binding post on rear panel
Signal
RCA socket on rear panel
Casework
Finish
Bead blasted natural or black anodised high grade aluminium with high-impedance
non metallic top
Cooling
Passive custom-built heatsinks
Dimensions (HxWxD)
140 x 440 x 400mm
Weight
27kg
Power
Input
230V, 50Hz
