The Arcam PA720 Power Amplifier Review uncovers one of the most sophisticated multi-zone amplifiers in the HDA range. Marrying Class G technology with a touch of Class A warmth, the PA720 delivers an exceptional 7-channel performance that audiophiles will adore. Whether you’re building a high-end home theatre or a distributed audio system, this amplifier promises minimal distortion and monumental headroom across every frequency.

Engineering Excellence & Build

Arcam’s UK engineers have meticulously designed the PA720 around a low-noise toroidal transformer, ensuring a rock-steady power supply. The heavy-duty chassis and front-panel controls exude functional elegance, while the robust heatsinks keep thermal levels in check during extended listening sessions. At 18 kg and measuring 433 × 425 × 177 mm, the unit is substantial but remains user-friendly for rack-mount installations.

Class G Amplification & Sonic Character

At its core, the PA720 employs Class G amplification with a 20 W Class A bias, offering the nuance and tonal fidelity of Class A at lower power demands, then seamlessly switching to Class G for maximum dynamic excursions. Each of the seven channels delivers 100 W RMS into 8 Ω, with a peak capability of 140 W into 4 Ω. The extraordinarily low THD of 0.002% at 80% power ensures pristine, artefact-free sound reproduction, from the subtlest piano resonance to thunderous cinematic effects.

Connectivity & Control

Flexibility is at the heart of the PA720. Switchable inputs allow you to select between unbalanced RCA or balanced XLR, accommodating a wide range of pre-amplifiers and AV processors. Built-in Ethernet and RS232 ports facilitate integration into control systems and multi-zone setups. The amplifier’s 105 dB signal-to-noise ratio and 20 Hz–20 kHz ±0.05 dB frequency response underpin its audiophile credentials.

Ideal Applications

This amplifier is a perfect match for:

• Multi-zone audio installations in large homes
• Dedicated home theatre setups requiring seven discrete channels
• Custom AV racks where precise control via Ethernet or RS232 is needed
• Enthusiasts seeking the warmth of Class A with the efficiency of Class G

Pros & Cons

• Pros: Exceptional 7-ch amplification with Class G efficiency and Class A warmth; ultra-low 0.002% THD; toroidal transformer for low noise; switchable RCA/XLR inputs; robust build quality; energy-efficient operation; 105 dB SNR for crystal-clear playback.
• Cons: At 18 kg, slightly heavy for lightweight racks; premium price point reflects class-leading design.

To explore the Arcam PA720 Power Amplifier further or to determine its compatibility with your setup, reach out to our experts at The Audio Tailor. Call us on 1300 308 711 or email sales@theaudiotailor.com.au for personalised advice and demonstrations.

Your Next Audio Upgrade Awaits

From the delicate intimacy of acoustic jazz to the earth-shaking impact of blockbuster soundtracks, the PA720 elevates every recording. If you’re serious about fidelity, our team is ready to help you harness the full potential of this Class G powerhouse.