T100SPA Stereo Power Amplifier

Description

A newly designed audio board using surface-mount components to minimise circuit inductance coupled with a power supply that is capable of delivering more than twice the amount of the energy of its predecessor, T50SPA, this is not just an upgrade but a major technological advance. Fully vibration protected and with radio frequency and interference-reducing components, the T100SPA works with speed and precision for sublimely-detailed, beautifully-nimble sound and superbly-enhanced imaging.

Technology

Using current feedback with exceptionally high bandwidth and a minimal component count, this solid-state class A/B stereo power amplifier is capable of giving a gripping and propulsive performance.

Quiescent’s new amplifier module uses state-of-the-art surface-mount technology to reduce circuit inductance as well as allowing them to ensure that we keep everything in one box. Each amplifier module is mounted directly on the heatsink with a single pair of out MOSFET transistors ensuring that lead inductance is kept to a minimum.

Power amplifiers are often severely disadvantaged by high levels of microphonic noise, robbing the signal of dynamic energy and accuracy. The T100SPA benefits from their QPower™ system incorporating d.c. blocking, high-frequency noise reduction and vibration isolation of the transformer and bridge rectifiers from the audio boards. This decoupling of vibration prevents board components from generating erroneous microphonic-generated noise. This was essential for a power amplifier with a significant upgrade in power supply delivery for current-hungry speakers.

Inputs are also decoupled from the preamplifier using their proprietary EMI/RFI absorption. This technology works by acting as a highly efficient high-frequency block in both directions preventing intermodulation with the musical signal.

Outputs are also decoupled from downstream noise and vibration from the speakers through use of a version our highly acclaimed Peak Speaker Module technology inside the amplifier.

That’s a lot of technology to squeeze into a single box and proved to be one the biggest engineering challenges faced by our designers. The result is an amplifier that can truly keep pace 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.