TEAC's premium power amplifier boasts high performance and flexible modes from a letter-sized footprint

TEAC AP-507 power amplifier in black/silver finish

(Image credit: TEAC)

TEAC has expanded its Reference 500 series with another hi-fi component, the AP-507 power amplifier. It follows the HA-507 analogue headphone amp/preamplifier and UD-507 DAC/preamp that launched in recent months.

The TEAC AP-507 joins this premium series that aims to deliver high-quality performance from compact products that are roughly the size of an A4 piece of paper. At its heart lies a new-generation Hypex NCOREx power amplifier module that has been custom-tuned by TEAC's engineers to their specifications and high performance standards. The stereo power amp features a fully balanced circuit and boasts TEAC's proprietary 'dual-mono buffer amplifier' that offers low distortion, high efficiency and ultra-linear performance from the amplifier.

TEAC says the AP-507 helps to "reproduce music with remarkable fidelity, capturing every nuance and detail of the original recording."

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Around the back, you'll find XLR and RCA analogue inputs, while the front panel is adorned by a rather lovely illuminated (and dimmable) display of twin UV meters. The AP-507 unit itself has a 2.8mm thick semi-floating aluminium top plate, a robust chassis and a three-point foot system to minimise vibrations reaching the circuitry and affecting performance.

The power amplifier is flexible in its use, with stereo, bi-amp and BTL (Bridge Tied Load) mono modes, depending on your audio set up at home. It delivers a claimed power output of 70 watts per channel at 8 ohms (at 1 per cent total harmonic distortion), and 230 watts at 8 ohms in BTL mono mode – the latter being a mode where both amp channels are combined to drive a single speaker, increasing the power output. Its letter-sized footprint makes it ideal for hi-fi fans short on space, but it can also be used to power an AV surround sound system in BTL mode, says TEAC.

Visually and sonically, the AP-507 will match the rest of the 500 series, which can even be stacked on top of one another for a neat and tidy – and rather premium – hi-fi system.

The TEAC AP-507 power amplifier is available in black or silver finishes and will cost £1899 / $2199 / €1899 when it goes on sale in spring 2025.

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Kashfia is the Hi-Fi and Audio Editor of What Hi-Fi? and first joined the brand 13 years ago. During her time in the consumer tech industry, she has reviewed hundreds of products (including speakers, amplifiers, turntables and headphones), been to countless trade shows across the world and fallen in love with hi-fi kit much bigger than her. In her spare time, Kash can be found tending to an ever-growing houseplant collection and shooing her cat Jolene away from spinning records.