HK 970

Harman Kardon HK 970 – HiFi, High‑Current 2 × 80W Integrated Stereo Amplifier

The Harman Kardon HK 970 is a powerful, high‑current integrated stereo amplifier engineered for demanding listeners who expect uncompromised musical performance. Designed during Harman Kardon’s golden era of high‑current analog amplification, the HK 970 delivers 2 × 80 watts into 8 ohms with exceptionally low distortion, and up to 380 watts dynamic power into 1 ohm, ensuring absolute control over even the most challenging loudspeakers.

With its ultrawide 5 Hz – 150 kHz frequency response, ±80A instantaneous current capability, and a robust 410 W power supply, the HK 970 offers explosive dynamics, deep bass authority and refined detail. A high‑quality MM phono stage, extensive analog connectivity, pre‑out/main‑in flexibility and dual speaker outputs make it a versatile centerpiece for serious stereo systems.

Elegant, understated and built with Harman Kardon’s signature engineering precision, the HK 970 is a true high‑current audiophile amplifier — powerful, musical and timeless.

Key Features

• 80W × 2 into 8Ω (<0.09% THD)
• 120W × 2 into 4Ω (<0.3% THD)
• Dynamic power:
• 8Ω: 115 W
• 4Ω: 200 W
• 2Ω: 295 W
• 1Ω: 380 W
• High‑current capability: ±80 amps
• Ultrawide frequency response: 5 Hz – 150 kHz (+0/–3 dB)
• MM phono input (4 mV / 47 kΩ)
• Pre‑out / Main‑in connectors for system expansion
• Dual speaker outputs (A/B)
• Heavy‑duty chassis and power supply
• System remote control included
• Available in black or silver

Audio Performance

• Continuous power output:
• 80W × 2 (8Ω, <0.09% THD)
• 120W × 2 (4Ω, <0.3% THD)
• Dynamic power: up to 380 W (1Ω)
• High‑current capability: ±80 A
• Frequency response: 5 Hz – 150 kHz (+0/–3 dB)
• Damping factor: >125 (20 Hz – 20 kHz)
• Signal‑to‑noise ratio:
• Tuner/CD: 95 dB
• Phono (MM): 75 dB
• Tone controls:
• Bass: ±6 dB @ 50 Hz
• Treble: ±6 dB @ 10 kHz
• Direct mode: Yes (Line Straight)

The HK 970’s amplifier section is engineered for instantaneous current delivery, ensuring tight bass, dynamic transients and precise loudspeaker control.

Connectivity

Inputs

• Phono (MM) – 4 mV / 47 kΩ
• CD – 270 mV / 43 kΩ
• Tuner – 270 mV / 43 kΩ
• AUX
• TV
• Tape In
• CDR In
• Remote In

Outputs

• Pre Out
• Tape Out
• CDR Out
• Remote Out
• Headphones (6.3 mm jack)
• 2 pairs of speaker outputs (A/B)

Build & Design

• Power consumption: 410 W
• Dimensions (W × H × D): 439 × 110 × 395 mm
• Weight: 10.35 kg
• Solid, vibration‑resistant chassis
• Clean Harman Kardon industrial design in black or silver

Positioning

The HK 970 is the ideal amplifier for:

• High‑current stereo systems
• Demanding loudspeakers requiring strong current delivery
• Vinyl playback (built‑in MM phono stage)
• CD‑based hi‑fi setups (perfect match for HD 970 / HD 970 II)
• Users who want pure analog performance without DSP coloration