NUX GP-1 Guitar Plug-In Headphone Amp
Instant, cable-free practice with British-rock tone—simply plug into your guitar, add headphones, and play anytime without disturbing anyone.
Key Features & Benefits
- Classic British distortion circuit delivers crunch and drive reminiscent of vintage stack amplifiers for inspiring rock practice sessions.
- Direct ¼″ swivel plug inserts straight into any guitar output jack, eliminating cables and keeping your setup ultra-portable.
- Dedicated Gain, Tone and Volume knobs provide quick on-the-fly shaping from clean sparkle to saturated lead tones.
- ⅛″ stereo headphone output offers clear, hiss-free monitoring so you can practise silently at night or on the go.
- ⅛″ aux-in jack lets you connect a phone, tablet or drum machine and play along with songs or backing tracks.
- Runs on two AAA batteries for up to forty hours of continuous play with alkaline cells—perfect for travel or outdoor rehearsals.
- Featherweight design—only 43 g (without batteries) and roughly palm-sized, it slips easily into any gig-bag pocket.
- Sturdy ABS enclosure protects internal circuitry from knocks while keeping overall weight to a minimum.
Overview
The NUX GP-1 packs a complete practice rig into a device barely larger than a guitar pick tin. Its British-voiced analog distortion section recreates the growl of a driven EL34 stack, while responsive gain and tone controls make it easy to dial everything from edge-of-breakup rhythm crunch to singing solo sustain.
Performance & Connectivity
A swivel ¼″ plug lets the GP-1 sit flush against Strat-style recessed jacks or Les Paul-style edge jacks. The internal preamp feeds a low-noise headphone driver, ensuring articulate attack and punch even through high-impedance studio headphones. Plug a phone into the aux-in and the GP-1 mixes your favorite tracks with your guitar signal, turning late-night shed sessions into full-band rehearsals.
Design & Power
Powered by two readily available AAA batteries, the unit lasts up to forty hours on quality alkaline cells—long enough for an entire tour’s worth of warm-ups. The plastic shell is reinforced around the jack stem to handle daily insertions, and recessed control wheels resist accidental movement while the amp is stowed in a case.
Use Cases & Applications
• Hotel-room or dorm-room practice without waking neighbors.
• Warm-ups backstage before stepping under the stage lights.
• Silent scale drills during commutes or between lessons.
• Quick tone checks when swapping pickups at the workbench.
• Outdoor jams at parks, campfires or busking spots where mains power is unavailable.
What’s Included
• NUX GP-1 Guitar Plug-In Headphone Amp
• User leaflet (digital PDF download)
• Batteries not included
Complete Technical Specifications
Electronics
- Controls: Gain, Tone, Volume
- Distortion Voicing: Classic British rock
- Headphone Output: ⅛″ (3.5 mm) stereo
- Aux Input: ⅛″ (3.5 mm) stereo
Power
- Power Source: 2 × AAA 1.5 V batteries (alkaline recommended)
- Battery Life: ≈ 40 h (alkaline) / 8 h (carbon)
Physical
- Dimensions: 10 × 8.8 × 2.3 cm
- Weight: 43 g (without batteries)
- Housing: ABS plastic, matte black finish
Why Choose the GP-1?
Vox amPlug 2 Classic Rock offers similar British flavour but costs nearly twice as much and provides just fifteen to seventeen hours on AAA power. Fender Mustang Micro gives broader amp coverage and USB charging yet retails above $100. At only $29, the NUX GP-1 delivers essential distortion tone, aux-in practice and marathon battery life in the most affordable, pocket-sized form.
Frequently Asked Questions
Does the GP-1 work with bass guitars?
Yes. While voiced for guitar, it can handle passive bass pickups; expect moderate gain and mid-forward tone.
Can I plug it into an electro-acoustic guitar?
It will function, but the built-in distortion is optimized for electric-guitar response rather than clean acoustic amplification.
Is there a clean channel?
No. The circuit is fixed to a driven British-rock character, but lowering Gain and adjusting guitar volume gives a semi-clean edge.
Will rechargeable Ni-MH batteries work?
Yes, though run-time will be shorter than with alkaline cells.
Can I record the headphone output?
Absolutely. Use a ⅛″-to-¼″ adapter cable into an interface line input to capture the GP-1’s tone direct.
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