The **Teac AP‑507** is a reference-class stereo power amplifier from Teac’s compact 500 Series. Featuring custom‑tuned Hypex **NCOREx®** modules and dual‑mono buffer amplification, it yields exceptional dynamics and clarity in a compact, fan‑less chassis.

Details

Capable of delivering **170 W per channel into 4 Ω** (95 W into 8 Ω in stereo/bi‑amp mode) and up to **350 W in bridged mono (BTL) mode**, this amplifier excels at both music and home theatre performance. Fully balanced circuitry throughout minimizes noise, while the **semi‑floating 2.8 mm aluminum top plate** and **3‑point Stress‑Less Isolation Foot system** reduce vibration and enhance tonal purity.

The front panel features **dual pointer VU meters** with adjustable brightness and sensitivity controls. Connectivity includes **balanced XLR and unbalanced RCA inputs**, large screw-type speaker terminals, and **12 V trigger in/thru** for system integration control. A triggerable power-saving function ensures efficient standby operation.

Features

• TEAC‑tuned Hypex **NCOREx®** Class‑D amplifier modules for ultra-low distortion and dynamic headroom
• Fully balanced dual-mono buffer amplifier design for maximum channel isolation
• Supports three drive modes: Stereo, Bi‑Amp, and BTL bridged mono
• Massive power supply per channel (18,800 µF capacitors) with toroidal transformer
• Vibration-dampened chassis with semi-floating aluminum top and quality isolation feet
• Silent, fan-free operation with auto power-saving feature
• Dual VU meters: four brightness settings and adjustable sensitivity
• Rear-panel balanced XLR and RCA inputs, screw terminals, and 12 V trigger ports

Specifications

• Maximum output: Stereo/Bi‑Amp: 170 W per channel @ 4 Ω; 95 W per channel @ 8 Ω; BTL mode: 350 W into 8 Ω.
• Rated output (1 % THD): Stereo/Bi‑Amp: 125 W per channel @ 4 Ω; 70 W per channel @ 8 Ω; BTL: 230 W into 8 Ω.
• Speaker impedance: Stereo/Bi‑Amp: 4–16 Ω; BTL: 8–16 Ω.
• THD: 0.0015 % (8 Ω, 1 kHz, 12.5 W)
• S/N ratio: 113 dB (8 Ω, 1 kHz, A‑weighted)
• Frequency response: 10 Hz–50 kHz (+0/−5 dB at 8 Ω, 1 kHz, 1 W)
• Inputs: 1× pair balanced XLR (1.3 V sensitivity), 1× pair unbalanced RCA (0.66 V sensitivity); input impedance ≥ 10 kΩ.
• Outputs: Screw-type speaker binding posts (banana compatible, AWG 8).
• Trigger: 12 V trigger in and thru (3.5 mm mono jack).
• Chassis: Aluminum top (2.8 mm semi‑floating), steel frame, Stress‑Less isolation feet.
• Dimensions (W×H×D): 290 × 84.5 × 271 mm
• Weight: ~4.4 kg
• Power consumption: ~58 W operating
• Color finishes: Matte black or silver
• Warranty: Standard manufacturer’s policy