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Seymour Duncan PowerStage 100 Stereo, 120V

The PowerStage 100 Stereo is a compact Class-D power amplifier that delivers serious output without consuming rack real estate—just over 6 inches wide, it's engineered for engineers and live sound professionals who need flexible routing and transparent amplification in a minimal footprint. This unit excels in studio monitoring, live reinforcement, and stage monitoring setups where space is at a premium and signal integrity is non-negotiable.

Power & Connectivity

The amp delivers 100 watts per channel at 4 ohms/1% THD (50 watts at 8 ohms) with continuous output power of 115W at 120VAC/60Hz. Dual ¼-inch inputs and outputs handle both speaker loads and XLR balanced line outputs, letting you run stereo monitoring rigs or split signals to multiple destinations simultaneously. Universal voltage support (100–240 VAC, 50/60 Hz) ensures operation anywhere in the world, while Class-D topology achieves 72% power efficiency—critical for heat management and reliability in compact designs.

Tone Shaping & Signal Control

A comprehensive 5-band parametric EQ with independent switching for speaker and XLR outputs gives surgical control over your signal across Bass (74 Hz), Low-Mid (389 Hz), Hi-Mid (1.55 kHz), Treble (4.6 kHz), and Presence (11.0 kHz) with ±13.2–13.6 dB range. Switchable analog cabinet simulation lets you shape tonal character on demand, while exceptional noise performance—97.6 dB SNR on balanced outputs and 89.5 dB SNR on speaker outputs—ensures a clean floor across both signal paths. Frequency response extends to 15 Hz–22 kHz ±3 dB, capturing the full spectrum your source material demands.

Key Features

• 100 watts output per channel at 4 ohms/1% THD; 50 watts at 8 ohms/1% THD
• Continuous output power: 115W at 120VAC/60Hz
• Class-D amplification topology with 72% power efficiency
• Nominal mains voltage: 100–240 VAC, 50/60 Hz
• Dual ¼-inch left and right inputs and speaker outputs
• XLR balanced line outputs with independent EQ switching
• 5-band parametric EQ: Bass (74 Hz), Low-Mid (389 Hz), Hi-Mid (1.55 kHz), Treble (4.6 kHz), Presence (11.0 kHz) with ±13.2–13.6 dB range
• Switchable analog cabinet simulation
• Signal-to-noise ratio: 97.6 dB (balanced line out), 89.5 dB (speaker out)
• Frequency response: 15 Hz–22 kHz ±3 dB
• Compact dimensions: 6¼ x 5 x 2½ inches
• EQ section independently switchable for speaker and XLR balanced line outputs

The PowerStage 100 Stereo combines serious amplification muscle with professional routing flexibility and transparent tone shaping, delivering reliable performance in studio monitoring, live sound reinforcement, and stage monitoring applications.