Power amplifiers stereo — TEAC AP-507

The AP-507 is a stereo power amplifier from TEAC, built with strong measured performance and a compact chassis. The AP-507 brings TEAC's considered engineering to dedicated stereo power amplification.

Key specs that matter

Input sensitivity spans 1.3V down to 0.66V depending on gain setting. Input impedance is 10,000 ohms on both balanced and single-ended inputs. Output power is 2 x 70W into 8 ohms, rising to 2 x 125W into 4 ohms. Frequency response spans a wide 10Hz to 50,000Hz within plus-or-minus 3dB. Signal-to-noise ratio is a strong 113dB, with total harmonic distortion plus noise at a low 0.0015% at 100% global feedback. At a compact 290 x 84.5 x 271mm and 4.4kg, the AP-507 maintains a remarkably space-efficient power amplifier chassis.

Sound and use context

Expect clean, dependable amplification reflecting the strong 113dB signal-to-noise figure and low 0.0015% distortion figure, packed into this remarkably compact chassis reflecting TEAC's considered Japanese engineering standards.

Pairing

The 2 x 125W into 4 ohms output suits a wide variety of loudspeaker loads.

Alternatives

TEAC's broader amplifier catalogue offers alternatives for buyers wanting a different configuration.