Musical Fidelity LX2-HPA Headphone Amplifier
High-current, low distortion headphone amplifier with dual outputs and broad bandwidth.
Product Overview
The Musical Fidelity LX2-HPA is a dedicated headphone amplifier (now discontinued) designed for faithful, uncoloured performance.
It offers high current delivery and excellent stability across a wide range of headphone impedances.
The design emphasizes low distortion (≤ 0.01 %), ultra-low noise, and a bandwidth extending well beyond human hearing. :contentReference[oaicite:0]{index=0}
It includes both ¼″ (6.3 mm) and 3.5 mm headphone outputs, an RCA input/output pass-through, and a regulated DC power input (12–24 V). :contentReference[oaicite:1]{index=1}
Key Features
- Low distortion — 0.01 % (typical) :contentReference[oaicite:2]{index=2}
- Very wide bandwidth, up to ~80 kHz, with distortion remaining extremely low at high frequencies :contentReference[oaicite:3]{index=3}
- Excellent noise performance and black background for musical detail :contentReference[oaicite:4]{index=4}
- Dual headphone outputs: 6.3 mm and 3.5 mm jacks :contentReference[oaicite:5]{index=5}
- RCA input and RCA output pass-through for integration in a system :contentReference[oaicite:6]{index=6}
- Regulated DC power requirement of 12 to 24 V, 100 mA typical :contentReference[oaicite:7]{index=7}
- Compact size and modest weight — ideal for desktop or rack use :contentReference[oaicite:8]{index=8}
Technical Specifications
| Total Harmonic Distortion | 0.01 % (typical) :contentReference[oaicite:9]{index=9} |
|---|---|
| Signal / Noise Ratio | > 80 dB :contentReference[oaicite:10]{index=10} |
| Power Requirement | 12-24 V DC, 100 mA regulated :contentReference[oaicite:11]{index=11} |
| Input / Output Connections | 1 pair RCA Input, 1 pair RCA Output pass-through :contentReference[oaicite:12]{index=12} |
| Headphone Outputs | 1 × 6.3 mm (¼″) stereo jack; 1 × 3.5 mm (⅛″) stereo jack :contentReference[oaicite:13]{index=13} |
| Input Impedance | 47 kΩ :contentReference[oaicite:14]{index=14} |
| Dimensions (L × W × H) | 197 × 172 × 46.5 mm (including terminals and feet) :contentReference[oaicite:15]{index=15} |
| Weight | 1.05 kg (unit); 1.50 kg (packed) :contentReference[oaicite:16]{index=16} |
| Included Accessories | 12 V DC 500 mA power supply :contentReference[oaicite:17]{index=17} |
