Power amplifiers stereo — TEAC AP-505

The AP-505 is a stereo power amplifier from TEAC, sharing the AX-505's output power specification with an extraordinary damping factor. The AP-505 brings TEAC's more accomplished current engineering to dedicated stereo power amplification.

Key specs that matter

Input sensitivity is 1,300mV via XLR or 660mV via RCA, with input impedance at 10,000 ohms on both connections. Output power is 90W into 8 ohms, rising to 130W into 4 ohms, matching the AX-505. Frequency response spans a wide 10Hz to 50,000Hz within plus-or-minus 3dB, matching. Signal-to-noise ratio is a strong 113dB, with total harmonic distortion plus noise at 0.0015% at 100% global feedback. Maximum power consumption is a modest 106W. Damping factor exceeds an extraordinary 370. At 290 x 84.5 x 271mm and 4.4kg, the AP-505 maintains a manageable power amplifier chassis.

Sound and use context

Expect exceptionally clean, tightly controlled amplification reflecting the extraordinary over-370 damping factor combined with the strong 113dB signal-to-noise figure, representing accomplished value at this price tier.

Pairing

The extraordinary over-370 damping factor suits demanding loudspeaker loads with excellent bass control.

Alternatives

TEAC's own AX-505 offers an integrated-amplifier alternative combining preamplification and power amplification within the same broader catalogue.