Rockville G-AMP 20 Guitar Amplifier
- 20 watts RMS, 6.5 inch speaker
- 3-band EQ
- Dual inputs, clean and overdrive
- Bluetooth and delay
- Headphone jack
- 12.2 x 5.5 x 12.6 inches
- 1 year warranty
- Amp only in the box
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A small portable guitar combo with two inputs, clean and overdrive modes, delay, Bluetooth and a headphone jack. The listing names only the amplifier as included.
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ASIN: B09T8XY8WRModel: G-AMP 20Category: Combo Amps
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Overview
Not a pedalboard or a floor rig, this is a narrow combo amp for practice with a six and a half inch speaker. It has a three-band tone control, two inputs, delay and a Bluetooth link for playing along.
The reason to look at it is the long feature list in a portable body, with Bluetooth for backing tracks and a jack for headphones. The limitation is that box contents beyond the amp, and the weight, are not described.
Who it's for
Players practicing in a bedroom or small room will use the Bluetooth and headphone options. Buyers who need accessories confirmed, or want a loud amp for a band, should look elsewhere.
Pros and cons
- Clean and overdrive modes
- Only the amplifier is listed as included
- Weight absent from the listing
- Enclosure material described as possibly metal
Performance notes
The amplifier circuit drives the six and a half inch speaker, and the three-band equalizer shapes the tone. The overdrive mode adds gain, and delay adds repeats. The headphone jack mutes the speaker for quiet practice.
Specifications
| Brand | Rockville |
|---|---|
| Model | G-AMP 20 |
| Dimensions & fit | |
| Item Dimensions D x W x H | 12.2 inches D x 5.5 inches W x 12.6 inches H |
| Speaker Size | 6.5 inches |
| Capacity & performance | |
| Output Wattage | 20 watts RMS |
| Power & efficiency | |
| Power Source | Corded electric |
| Construction & materials | |
| Enclosure Material | Plastic, possibly metal |
| Compatibility & installation | |
| Connectivity | Bluetooth |
| Included components | |
| Included components | Amplifier |
| Warranty & support | |
| Warranty Description | 1 year |
| Other details | |
| Amplifier Type | Solid state |
| Number of Bands | 3 |
| Modes | Clean, overdrive |
| Inputs | Dual inputs |
| Effects | Delay |
| Headphone jack | Yes |
Closest rivals on specs
Orange Crush 20 20W 8" 2-Channel Guitar Amplifier and Speaker Combo- Speaker Size 6.5 vs 8 inches (-19%)
Fender Frontman 20G Electric Guitar Amplifier- Speaker Size 6.5 vs 8 inches (-19%)
Fender Mustang LT25 Guitar Amplifier- Output Wattage 20 vs 25 watts (-20%)
- Speaker Size 6.5 vs 8 inches (-19%)
Frequently asked questions
Does the Rockville G-AMP 20 have Bluetooth?
Yes. The title lists a Bluetooth combo amp with delay.
How many inputs does the Rockville G-AMP 20 have?
The highlight lists dual inputs.
Can I use headphones with the Rockville G-AMP 20?
Yes. A headphone jack is listed.