Arcam PA 410
At 4.5kg, it looks modest on the shelf—but don’t mistake light weight for light performance.
Overview
The Arcam PA 410 is a four-channel power amplifier from British hi-fi manufacturer Arcam, part of their "PA" series designed for high-fidelity audio systems. Despite its relatively compact dimensions—433mm wide, 85mm high, and 305mm deep—it houses a Class AB amplification stage, noted across multiple sources for efficient and stable output. Owners report using it in both stereo and surround configurations, including modern setups like Atmos speaker arrays, suggesting flexibility beyond traditional stereo use. While the front panel appears minimalist, with only a single RCA input and one pair of speaker terminals visible, the internal architecture is built to drive multiple channels with precision. The PA 410 sits within a lineage of Arcam power amplifiers, though its exact production timeline remains undocumented.
Specifications vary slightly across sources, but a consistent picture emerges of a capable multichannel driver. When all four channels are driven, it delivers 50 watts per channel into 8 ohms (20Hz–20kHz, 0.2% THD), rising to 70 watts into 4 ohms under the same conditions. With just two channels driven, output increases further—up to 70 watts into 8 ohms and 100 watts into 4 ohms. This suggests a robust power supply capable of handling dynamic load demands, a trait valued in both music and home theater applications. The amplifier’s frequency response spans the full audible range, rated at 20Hz to 20kHz, with total harmonic distortion consistently cited at 0.2% THD in authoritative listings. One outlier claims a significantly lower THD of around 0.003%, but without corroboration or context, that figure remains unverified.
Specifications
| Manufacturer | Arcam |
| Product type | 4 Channel Power Amplifier |
| Amplification class | Class AB |
| Power output | 50W per channel (8 ohms, four channels driven, 20Hz–20kHz, 0.2% THD) |
| Power output | 70W per channel (4 ohms, four channels driven, 20Hz–20kHz, 0.2% THD) |
| Power output | 100W per channel (4 ohms, two channels driven, 20Hz–20kHz) |
| Power output | 70W per channel (8 ohms, two channels driven, 20Hz–20kHz) |
| Frequency response | 20Hz to 20kHz |
| THD | 0.2% THD |
| Inputs | 1 x RCA |
| Outputs | 1 x pair of speaker terminals |
| Dimensions | 433mm (W) x 85mm (H) x 305mm (D) |
| Weight | 4.5kg |
| Shipping weight | 40lbs |
Collectibility & Value
Current market listings show used units trading between $600 and $750 USD, with one outlier listing marked down to $2,950—likely reflecting regional pricing or unusual condition. Retail prices remain active at £1,499 (Fanthorpes HiFi) and $1,650.00 (Audiophile Zone), suggesting the model is still available new through select distributors, though original production dates and MSRP are undocumented. No specific failures or maintenance concerns unique to the PA 410 are reported in available documentation, though general amplifier issues like thermal stress or power supply degradation may apply over time. Its ongoing presence in new-old-stock form, including units reportedly sold with warranty, indicates a niche but sustained demand.
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