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OSCA Vintage Collection

*RARE* 1997 Phoenix Gold QX2350 Vintage 2-Channel Amplifier (NOS)
*RARE* 1997 Phoenix Gold QX2350 Vintage 2-Channel Amplifier (NOS)
*RARE* 1997 Phoenix Gold QX2350 Vintage 2-Channel Amplifier (NOS)
*RARE* 1997 Phoenix Gold QX2350 Vintage 2-Channel Amplifier (NOS)
*RARE* 1997 Phoenix Gold QX2350 Vintage 2-Channel Amplifier (NOS)
*RARE* 1997 Phoenix Gold QX2350 Vintage 2-Channel Amplifier (NOS)
*RARE* 1997 Phoenix Gold QX2350 Vintage 2-Channel Amplifier (NOS)
*RARE* 1997 Phoenix Gold QX2350 Vintage 2-Channel Amplifier (NOS)
*RARE* 1997 Phoenix Gold QX2350 Vintage 2-Channel Amplifier (NOS)

Vendor:Phoenix Gold

*RARE* 1997 Phoenix Gold QX2350 Vintage 2-Channel Amplifier (NOS)

Sale price$199.00Regular price $399.00

Late-1990s Phoenix Gold QX2350 Chrome 2-Channel MOSFET Amplifier | New Old Stock (NOS) Vintage Car Audio

The Phoenix Gold QX2350 is a two-channel MOSFET power amplifier from the original late-1990s QX series, introduced before the range transitioned to its black-finish generation. Featuring distinctive chrome-style aluminium heatsink construction, gold-plated connections and adjustable crossover controls, the QX2350 reflects the bold styling and engineering of 1990s enthusiast car audio. With manufacturer-specified output of 125W × 2 at 4Ω, 175W × 2 at 2Ω or 350W × 1 bridged at 4Ω, it combines substantial power with flexible stereo and subwoofer applications. A nostalgic piece of Phoenix Gold history for collectors and enthusiasts of classic aftermarket audio.

New Old Stock (NOS) condition: Never installed or used beyond professional testing. The amplifier is preserved in pristine condition, accompanied by its original Phoenix Gold packaging & contents.

All OSCA Vintage Series products have been professionally powered-on and functionally bench-tested ✅

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Product details

Advanced Specifications
  • Brand: Phoenix Gold
  • Series: QX Series (Original Chrome Generation)
  • Model: QX2350
  • Product Type: Two-channel MOSFET power amplifier
  • Era: Late 1990s
  • Stereo Output at 4Ω: 125W × 2
  • Stereo Output at 2Ω: 175W × 2
  • Bridged Output at 4Ω: 350W × 1
  • Minimum Stereo Impedance: 2Ω per channel
  • Minimum Bridged Impedance: 4Ω
  • Amplifier Class: Class A/B
  • Power Supply: PWM MOSFET
  • Frequency Response: 20Hz–20kHz (±1dB)
  • Signal-to-Noise Ratio: Greater than 100dB
  • Input Sensitivity: 200mV–2V
  • Crossover: Selectable high-pass, low-pass or defeat
  • Crossover Frequency Range: 30–600Hz
  • Crossover Slope: 12dB/octave
  • Bass Boost: Adjustable up to +15dB at 45Hz
  • Connections: Gold-plated RCA, power and speaker terminals
  • Protection: Overload and thermal protection circuitry
  • Recommended Fuse Rating: 40A
  • Design Heritage: Designed and engineered in the USA

Power ratings are reproduced from Phoenix Gold's historical specifications. The original retail box labels its 14.4V figures as dynamic power; the archived manufacturer technical reference also identifies the corresponding output figures as RMS ratings under its stated conditions.

Key Features
  • Two-Channel Bridgeable Design supports stereo speaker amplification or up to 350W in bridged mono operation.
  • Original Chrome-Finish Heatsink features the distinctive styling of Phoenix Gold's first-generation QX amplifiers.
  • PWM MOSFET Power Supply provides the amplifier's high-current power conversion.
  • Adjustable Electronic Crossover offers selectable high-pass and low-pass filtering with a defeat option.
  • 45Hz Bass Boost provides adjustable low-frequency enhancement of up to +15dB.
  • 24K Gold-Plated Connections reflect Phoenix Gold's emphasis on high-quality terminals and period detailing.
Installation Notes
  • Minimum speaker impedance is 2Ω per channel in stereo or 4Ω in bridged operation.
  • Not designed for 2Ω bridged loads.
  • Requires correctly fused power wiring, secure mounting and appropriate ventilation.
  • Confirm speaker compatibility, crossover settings and input gain before installation.
  • Vintage equipment should be installed with consideration for its age and original electrical design.
OSCA Fun Fact

The QX series didn't just disappear when car audio styling changed. By 2003, Phoenix Gold had replaced it with the Octane-R range, featuring design cues inspired by the street-racing scene. From the QX2350's chrome-era looks to the tuner-inspired styling of the early 2000s, even amplifier fashion was changing with car culture.
Phoenix Gold QX2350 Owners Manual
phoenix-gold-custom-boot-90's

Built for the Sound-Quality Scene

During the 1990s, car audio enthusiasts were pushing beyond simple speaker upgrades, building elaborate multi-amplifier systems for sound-quality competitions and custom installations. Phoenix Gold became a familiar name in this culture, offering equipment recognised for distinctive styling and system flexibility. The QX2350 reflected this approach, with adjustable crossover controls, bridgeable operation and the versatility to power anything from component speakers to subwoofers. It represents an era when car audio was as much about the build as the music.

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