Seymour Duncan PowerStage 100 Stereo, 120V
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- Brand new in original box
- Full Seymour Duncan manufacturer's warranty
- Free shipping in the continental US
In stock
- SKU
- 11901-004
. Description
Seymour Duncan PowerStage 100 Stereo, 120V
The PowerStage 100 Stereo is a compact Class-D power amplifier built for gigging musicians, sound engineers, and venue operators who need serious amplification in a footprint that fits in a gig bag or monitor rig. At just over 6 inches wide, it delivers 100 watts per channel without eating up valuable stage or rack real estate, making it the go-to choice for stereo monitor mixes, powered wedge cabinets, or split-signal setups at small-to-medium venues and studios.
Power Output & Connectivity
This unit delivers 100 watts per channel at 4 ohms/1% THD (or 50 watts at 8 ohms), with continuous output power of 115W at 120VAC/60Hz. The dual ¼-inch inputs and outputs accommodate both speaker loads and XLR balanced line outputs, allowing you to run stereo monitoring rigs or split signals to multiple destinations simultaneously. Universal voltage support from 100–240 VAC, 50/60 Hz ensures operation anywhere in the world.
Tone Shaping & Signal Management
A comprehensive 5-band parametric EQ with individual switching for speaker and XLR outputs gives you surgical control over your signal path. The switchable analog cabinet simulation lets you dial in the exact character you need for your setup, while the 97.6 dB SNR on balanced outputs and 89.5 dB SNR on speaker outputs ensure a clean, quiet signal across both paths with minimal noise floor. Bandwidth extends to 15 Hz–22 kHz ±3 dB, capturing the full spectrum your source material and monitor mix demand.
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 delivers serious amplification muscle with professional routing flexibility and transparent tone shaping, earning its place in tour rigs, venue monitor systems, and recording studio setups where reliability, compact size, and versatile I/O make all the difference.
More Information
| Condition | New |
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Reviews
At a Glance
The Seymour Duncan PowerStage 100 Stereo is a compact 100-watt Class-D power amplifier engineered for live sound professionals and stage monitoring setups where rack space is critical and signal integrity matters. Its dual-channel stereo output, surgical 5-band parametric EQ, and switchable cabinet simulation give you transparent amplification with professional routing flexibility for monitors, reinforcement, or multi-destination live rigs. Built for the road with 72% efficiency, low noise (97.6 dB SNR balanced), and worldwide voltage support, it delivers reliable on-stage performance without bloat.
Who This Is For
Great for
- ✓ Live Performance
- ✓ Studio Sessions
- ✓ Stage monitoring
- ✓ Live reinforcement
Not the best pick for
- – Practice
- – Bedroom use
Skill level: Intermediate · Advanced · Professional
Frequently Asked Questions
What's the actual wattage output at different impedances?
The PowerStage 100 Stereo delivers 100 watts per channel at 4 ohms (1% THD) and 50 watts per channel at 8 ohms, with continuous output power of 115W at 120VAC/60Hz. Choose your speaker impedance accordingly to match your monitor or reinforcement rig.
Can I use this for both stage monitors and studio monitoring?
Yes. The unit includes dual ¼-inch inputs and outputs for speakers, plus independent XLR balanced line outputs with switchable EQ, so you can run monitors and a studio reference feed simultaneously or switch between setups.
How does the 5-band EQ help me shape my mix?
The parametric EQ offers ±13.2–13.6 dB of cut or boost at five key frequencies: Bass (74 Hz), Low-Mid (389 Hz), Hi-Mid (1.55 kHz), Treble (4.6 kHz), and Presence (11.0 kHz), with independent switching for speaker and XLR outputs so you can dial different tones for each signal path.
Will this work outside the US?
Yes, the PowerStage 100 Stereo supports universal voltage input (100–240 VAC, 50/60 Hz), so it's ready to use anywhere in the world without an external converter.
How compact is it really?
At just 6¼ x 5 x 2½ inches and weighing minimal pounds, the PowerStage 100 Stereo fits into tight racks, wedges under a monitor wedge, or slides into a small road case—Class-D topology and 72% efficiency mean no excessive heat or bulk.
Do I pay sales tax on this order?
We collect sales tax only on orders shipped to California. Orders shipped to any other US state are charged $0 sales tax at checkout when you buy direct from our website. On this item that is roughly $42 less out the door than the same listed price at a national retailer or on a marketplace. Marketplaces such as eBay, Reverb and Amazon collect sales tax in nearly every state as marketplace facilitators no matter who the seller is, so the same item at the same price costs less bought direct. Free US shipping and 30-day returns are included. Some states ask buyers to self-report use tax on out-of-state purchases.
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