Ibanez Promethian P20-N

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$126.00 Price Tier: Budget

5.0 (1)

1 Review

All time low price

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Page last updated Jul 01, 2026

Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated June 19, 2026.

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4.6 (48)

$133.00 $126.00 $7.00 · All time low

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Average Price: $126

Budget/Beginner

$200

$701+

Price Tier

In the Bass Combo Amplifiers category, Ibanez Promethian P20-N is priced in the Budget/Beginner range. This is great gear to get started with or for creators on a budget.

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Price History

Based on price data from 1 merchant for "Ibanez Promethian P20-N". Prices shown reflect NEW condition. Tracking began Apr 7, 2026.

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Description

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The Ibanez Promethian P20-N is your perfect companion for practice sessions and intimate gigs, offering a powerful yet compact solution for bass enthusiasts. Designed with both novices and seasoned players in mind, this bass combo amplifier delivers a rich, full-bodied sound that belies its modest size. At the heart of the P20-N is a 20-watt amplifier paired with an 8-inch loudspeaker, ensuring your bass lines cut through with clarity and punch.

Its versatile control panel is equipped with high-mid, low-mid, and low-frequency adjustments, allowing you to tailor your sound to any style or genre. The inclusion of a 10dB input pad makes it adaptable to different bass pickups, while the auxiliary input lets you jam along with your favorite tracks. The closed cabinet construction enhances the bass response, providing a tighter and more focused sound.

For those late-night practice sessions, simply plug in your headphones to the dedicated output and play without disturbing the peace. The Ibanez Promethian P20-N blends portability and performance, making it an indispensable tool for every bass player looking to refine their skills.

Key Features:

20 watts of power with 8 Ohm impedance
8-inch loudspeaker
High-mid, low-mid, and low controls
10dB input pad for versatile connectivity
Auxiliary input for jam sessions
Headphone output for silent practice
Closed cabinet construction for enhanced bass response

Product specs

Available since	August 2015
Power in W	20 W
Speaker component	1x 8"
HF-Horn	No
Equalizer	4-Band
Compressor	No
Limiter	No
Effects Unit	No
Headphone Output	Yes
DI Output	No
Speaker Connector	No
CD/MP3 Input	Yes

FAQs

Is the Ibanez Promethean P20-N suitable for home practice?: Yes, the Ibanez Promethean P20-N is ideal for home practice due to its compact size and 20W power output, providing sufficient volume without overwhelming a small space.
Does the Ibanez Promethean P20-N have an equalizer for tone shaping?: Yes, the Ibanez Promethean P20-N features a 4-band equalizer, allowing you to adjust bass, midrange, and treble frequencies to shape your tone.
Can I use headphones with the Ibanez Promethean P20-N for silent practice?: Yes, the Ibanez Promethean P20-N includes a headphone output, enabling silent practice sessions without disturbing others.
Does the Ibanez Promethean P20-N have a built-in effects unit?: No, the Ibanez Promethean P20-N does not include a built-in effects unit, focusing instead on delivering a clean and straightforward bass tone.
Can I connect an external audio source to the Ibanez Promethean P20-N?: Yes, the Ibanez Promethean P20-N has a CD/MP3 input, allowing you to connect external audio sources for play-along practice.

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Reviews

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PROS

Sweet tone with plenty of volume for 20W
Built like a tank, indicating durability
Auxiliary input adds versatility for practice sessions
Efficient EQ handles various input signals well
Impressive clean volume for its size and price
4-band EQ allows for solid sound shaping
Headphone jack ideal for quiet practice
Compact and portable for rehearsals and small gigs

CONS

Lacks "line out" feature for expanded connectivity
Sound may be too boxy with the internal speaker for some users
Not suitable for concert settings due to its size and power

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Ibanez Promethian P20-N.

Features and functionality

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The Promethean P20-N includes a -10db pad, which helps prevent damage from strong signals, especially during slap and pop techniques.
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Setup and maintenance

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Adjusting gain and volume levels strategically can prevent clipping; start with gain at 25% and volume at 50%, then adjust as needed for headroom.
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Crackling when turning knobs may indicate dirty or oxidized pots, which can often be improved by repeatedly turning the knobs back and forth.
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Room acoustics significantly affect sound; avoid wooden floors and walls to minimize unwanted echo and reverb.
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Amp placement is crucial; tilting the amp up to 45 degrees can reduce echo by preventing direct wall reflection.
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Improving muting techniques can reduce extraneous noise, enhancing clarity and control over string resonance.
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Use cases and applications

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A compressor is recommended to manage dynamic spikes during slap bass, improving overall sound consistency.
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The Promethean P20-N is deemed adequate for lounge room practice, with suggestions to occasionally use headphones to refine technique and volume balance across strings.
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User experience

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Slap bass requires a good mid-high EQ response; fresh strings and proper bass action are crucial for achieving the desired "twang" rather than a dull "thunk."
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Some owners find the P20-N satisfactory for small spaces but suggest pairing with preamps like the Battalion for enhanced sound quality.
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Comparisons

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Users transitioning from the Ibanez Promethean P20 to larger amps like the Orange Crush Bass 100 note improved low-end response, especially for 5-string basses.
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5.0 out of 5

Based on 1 Review and 1 Rating

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gw2

158

over 6 years ago

Great practice amp

Sound shaping onboard is nice with low, mid, high-mid, and high. A headphone jack make this great for playing in an apartment or a shared living space, or at night. Definitely not suitable for using in a concert settings but it is explicitly a practice amp, so this is expected.

Roles:

Bassist

Genres:

Electronic Rock Blues

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