GML Model 2555 External Power Supply for GML 8200, 8302 & 8304

The GML Model 2555 is a premium external power supply engineered by George Massenburg Laboratories to deliver clean, ultra-low-noise power for select GML modules, including the GML 8200 Parametric Equalizer and GML 8302/8304 Microphone Preamplifiers. Compact, efficient, and whisper-quiet, it’s the modern replacement for the legendary GML 8355 PSU.

Be aware: If you're placing an order for PSU only, you will need to order a 5pin XLR power cable unless you already have one. 

Key Features

• High-Performance Output: ±28 V DC, 80 W total output (supports up to two GML 8200 units).

• Universal AC Input: 90–264 VAC, 50/60 Hz — no voltage switching required.

• Ultra-Low Noise Design: High-frequency switching for minimal EMI and interference.

• Compact & Lightweight: Less than half the weight of the GML 8355, ideal for mobile and studio racks.

• Protective Circuitry: Built-in short-circuit and over-voltage protection for reliable long-term operation.

• Quiet Operation: Virtually silent — no fans, no coil hum, perfect for critical studio environments.

• Durable Construction: Black anodized aluminum chassis with white silkscreen labeling.

Specifications

• Output: ±28 V DC / 80 W

• Input: 90–264 VAC, 50–60 Hz (IEC C13 connector)

• Efficiency: ~86%

• Connector: 5-pin female XLR (output cable sold separately)

• Dimensions: 2.1″ H × 5.5″ W × 7.25″ D

• Weight: 2 lb 6.5 oz (1.1 kg)

Compatibility
Designed specifically for:

• GML 8200 Equalizer

• GML 8302 Dual Mic Preamp

• GML 8304 Quad Mic Preamp

Why Choose the GML 2555
For studios and engineers who demand absolute sonic integrity, the GML 2555 ensures your GML outboard gear receives the cleanest, most stable power possible. Its quiet, compact design and universal voltage capability make it equally suited for professional studios, mobile rigs, and international setups