Riotous AudioRiotousAudio
Zapco REF 500.1
Home / Zapco / Reference
Zapco · Reference Series

REF 500.1

Class AB, Mono — Power 2Ω: 1 x 550W, 4Ω: 1 x 320W

$1,199.99MSRP · USD

The REF 500.1 is a mono Class AB amplifier in Zapco's Reference Series, delivering authoritative bass with the same audiophile component selection and upgradable op-amps found across the Reference line.

Key Features

  • Mono (1-channel), Class-AB amplifier
  • Selected Sanken MN1526/MP1526 output transistors
  • ELNA Series RA3/RFS signal-path capacitors with SAMXON power supply caps
  • Balanced/unbalanced input selectable via internal button
  • Upgradable op-amps — MUSES8820 standard; socket-mounted for easy swap to MUSES02

Power Output

4 Ω Mono1 × 320 W
2 Ω Mono1 × 550 W

Performance

Amplifier ClassAB
Channels1
Signal-to-Noise> 103 dB (A-weighted @ full power)
THD at Rated Power< 0.02% (1 kHz, 4 Ω, 70% rated power)
Frequency Response10 Hz – 40 kHz
Tested Voltage14.4 V

Connections & Controls

Inputs2 × RCA low-level
Gain0.5 V – 8 V input sensitivity

Dimensions

Overall (L × W × H)416 × 210 × 62 mm

Product Details

BrandZapco
SeriesReference
ModelREF 500.1
SKUREF500.1
EAN8033373006999
Inquire to Order More Reference

Genuine product · Authorized U.S. dealer · Drop-shipped direct

Documentation

Product Page at ZapcoOwner's Manual (PDF)