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Electro-Harmonix BASS9 Bass Machine

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$188.00 to $259.50 Price Tier: Standard

5.0 (4)

2 Critic Reviews

3 Reviews

Find out who is using Electro-Harmonix BASS9

2 community setups

3 wishlisted

10 saved

Page last updated Jul 04, 2026

Pricing and availability

We compare 600+ stores and found this item at 9 stores. Prices updated July 4, 2026.

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Reviews

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4.5 (22)

$259.50

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5.0 (1)

$259.50

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3.6 (28)

$259.50 New

$209.99 Used (Like New)

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4.0 (24)

$226.01 59 available New

$160.00 23 available Used

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3.0 (1)

$259.50

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$259.50

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$259.50

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4.5 (36)

$189.00 $188.00 $1.00 · All time low

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£219.00

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Average Price: $237

Standard/Professional

$150

$601+

Price Tier

In the Guitar Synth Pedals category, Electro-Harmonix BASS9 Bass Machine is priced in the Standard/Professional range. This is quality gear at a fair price point, suitable for beginners, hobbyists, and pros alike.

Budget

Standard

High-end

Price History

Based on price data from 6 merchants for "Electro-Harmonix BASS9 Bass Machine". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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Welcome to the world of fat, full bass bliss with the Electro-Harmonix BASS9 Bass Machine! This versatile pedal from the innovative 9 Series is your one-stop solution to transform your guitar into a bass. It presents a grand library of nine iconic bass sounds, from the rich tones of Precision to the squelchy 3:03 that defined a genre, and even the unique Longhorn and Fretless emulations.

Take control of your sound with the CTRL1 and CTRL2 knobs that adjust key parameters for each bass type, letting you shape your tone with precision. The Dry and Effects knobs allow for an exact mix of your levels, enhancing your tonal flexibility.

With the BASS9, you can say goodbye to inconvenient instrument changes and hello to swift, seamless transitions. No special pickups needed, it uses a new algorithm optimized for transposing one to two octaves down with superior dynamics and tracking. Plus, with separate Dry and Effect outputs, you can route your sound through different amps for even more customization.

Dive into the BASS9's world of bass possibilities and unleash your guitar's big bottom!

Key Features:

Transforms your electric guitar into nine different bass types
Utilizes a new algorithm for superior dynamics and tracking
CTRL1 and CTRL2 knobs for precise sound shaping
Dry and Effects knobs for exact level mixing
Separate Dry and Effect outputs for added customization
No special pickups or instrument modifications needed
Bass types: Precision, Longhorn, Fretless, Synth, Virtual, Bowed, Split Bass, 3:03, and Flip-Flop
Powered via included 9 V DC power supply

Owner's manual

Electro-Harmonix BASS9 Bass Machine User Manual

Product specs

Pedal Type	Bass Emulator
Analog/Digital	Digital
Effects	Precision, Longhorn, Fretless, Synth, Virtual, Bowed, Split Bass, 3:03, Flip Flop
Inputs	1 x 1/4"
Outputs	1 x 1/4" (effect), 1 x 1/4" (dry)
Bypass Switching	Buffered
Power Source	9V DC power supply required (included)
Power Usage	100mA
Height	2.25"
Width	4.0"
Depth	4.75"

FAQs

What types of bass sounds can the Electro-Harmonix BASS9 Bass Machine produce?: The Electro-Harmonix BASS9 Bass Machine offers a variety of bass sounds, including Precision, Longhorn, Fretless, Synth, Virtual, Bowed, Split Bass, 3:03, and Flip Flop, allowing for diverse tonal possibilities.
Can the Electro-Harmonix BASS9 Bass Machine be used with electric guitars?: Yes, the Electro-Harmonix BASS9 Bass Machine is designed to transform electric guitar signals into bass sounds, making it a versatile tool for guitarists seeking bass tones.
Does the Electro-Harmonix BASS9 require a specific power supply?: The Electro-Harmonix BASS9 requires a 9V DC power supply, which is included with the pedal, ensuring it is ready to use right out of the box.
How does the Electro-Harmonix BASS9 handle signal output?: The BASS9 features two outputs: one for the effect and another for the dry signal, allowing for flexible routing and blending of sounds.
Is the Electro-Harmonix BASS9 suitable for live performances?: With its buffered bypass switching and diverse sound options, the BASS9 is well-suited for live performances, providing reliable sound transformation for electric guitarists.

Videos

Add video

EHX

Electro-Harmonix BASS9 Bass Machine (EHX Pedal Demo by Bill Ruppert)

EHX

Electro-Harmonix Bass9 Pedal - The Review (Can it turn your guitar into a bass?)

Rock Guitar Vibes

EHX Electro Harmonix BASS9 Bass Machine

David Curtis

Split Bass Comparison BOSS OC-3 VS ELECTRO-HARMONIX BASS9

yoneG

Electro-Harmonix BASS9 Bass Machine

Mark London

Electro Harmonix Bass 9 - Split Bass [Rated PG]

Shaheed Shabazz

Tone demo: Electro-Harmonix Bass9 Bass Machine

Jared Smythe

Acoustic Guitar Looping With Electro-Harmonix Bass9 Bass Machine Pedal

Tony Lee Glenn

Electro-Harmonix Bass9 Bass Machine - Precision Bass on a Strat Neck Pickup

Tony Lee Glenn

Reviews

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PROS

Can transform guitar into bass with multiple effects
Includes convincing electric bass simulations (fret noises, finger slides)
Tracks well on various instruments, including Bass VI
Variety of settings offers extensive versatility
Zero latency in pitch shifting
Excellent for looping and live performances
Quality build and materials
Noise-free operation
Good for studio recordings as a bass alternative
Can chord, enhancing musical creativity

CONS

Some models may produce unsatisfactory sound
Always-present reverb may not be desirable
Volume inconsistency across different settings
Not recommended for bass by EHX, limited use with 4-string bass
Some settings lack attack and punch
Ambient room echo might be unwanted
Cannot be powered by batteries
Manual in German, inconvenient for non-German speakers

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Electro-Harmonix BASS9 Bass Machine.

Features and functionality

0 0

The Split mode on the BASS9 changes only the bass tone, lacking a range control to select specific strings for bass effect.
Source
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The pedal lacks a preset save/recall feature, which some users found disappointing compared to other EHX Synth line pedals with this capability.
Source

Comparisons

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The BASS9's Split mode is reminiscent of the Boss OC-3's Poly mode, providing a unique octave-splitting function that isn't found in the OC-2.
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The Morpheus Droptune, an older model, is highlighted for its unique format and cheaper second-hand prices, though it's sensitive to trim pot adjustments.
Source
0 0

The BASS9 is perceived as an enhanced version of the Pitchfork, with added effects and tweaks to emulate different bass tones, whereas the Pitchfork offers more flexibility for custom sound shaping.
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0 0

The Pitchfork is favored by some for its flexibility, offering octave shifts up to three octaves and a dry/wet mix knob, making it more versatile compared to the BASS9.
Source
0 0

The Pitchfork is noted for its ability to provide a synthesized shortscale bass sound, which some users find comparable to the BASS9's emulated tones but with more control over effects.
Source

Use cases and applications

0 0

Ideal for two-piece bands or solo performers using loops, allowing guitarists to fill in bass lines without switching instruments.
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Potential use with keyboards to achieve synth bass and string bass sounds, particularly in split mode for versatile tonal applications.
Source
0 0

A low pass filter pedal, like the Broughton Low Pass Filter, can help isolate lower frequencies for the BASS9, preventing unwanted higher notes from being processed.
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0 0

Users find the BASS9 suitable for creating pseudo bass effects for looping or backing tracks, particularly where space or budget constraints prevent owning a real bass.
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The BASS9 is considered ideal for solo guitarists using amp modelers like the Mooer GE300, allowing integration with bass amp and cab simulations for enhanced tonal versatility.
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User experience

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Some users note that the fretless setting sounds synthetic, offering a unique tone that diverges from typical bass synth pedals.
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0 0

Users attempting different setups found that built-in split effects on models like the OC-3 outperform low pass filters and compressors for separating guitar frequencies.
Source

Value and pricing

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While the BASS9 retails at $221.30, it's noted that EHX pedals often decrease in price quickly on the used market.
Source

Mods and upgrades

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A custom pickup with stereo output can separate top and bottom strings, sending specific frequencies to the BASS9 and achieving better bass response for fingerpicking styles.
Source

Critic Reviews

Electro-Harmonix Bass9 Bass Machine

soundonsound.com

The Electro-Harmonix BASS9 Bass Machine delivers a compelling array of bass sounds, convincingly emulating iconic bass guitars with impressive clarity and dynamic response. Its polyphonic capabilities allow for creative chord play, though strumming can produce muddiness. While some sounds, like fretless and bowed, aren't flawless, they capture the essence well enough for practical use. The layout is user-friendly, featuring wet/dry mix controls that enhance versatility. However, players seeking absolute authenticity might find certain tones lacking. Overall, it's a strong option for guitarists needing a portable bass solution without the hassle of lugging an actual bass guitar.

positive

Full Review

New Gear Review: BASS9 Bass Machine by Electro-Harmonix — SonicScoop

sonicscoop.com

Full Review

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5.0 out of 5

Based on 3 Reviews and 4 Ratings

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sofamusician

855

about 1 year ago

A virtual bass in pedal form to thicken the sound of your guitar or ukulele

The EHX Bass9 provides excellent tracking and a realistic bass sound. I have used it successfully with both a guitar and a ukulele.

This pedal has been useful to both record bass backing tracks to use with a looper, and to use the bass as an additional layer doubling the main instrument to achieve a thicker sound. The later has been useful to get a much richer sound with a fuzz pedal (the Deluxe Bass Big Muff, in my case). With the ukulele, in some situations, removing the dry signal completely.

The pedal has two outputs. One keeps the original signal and the other provides the effect signal (where the bass and the original can be blended to taste). Having these two signal paths has been useful in combination with an ABY pedal. The original signal can go through some gain stages to be combined in the ABY pedal with the bass signal as an optional layer that can be enabled with a tap.

I have been mainly used the P-bass option, but there are a good number of options to experiment further.

Roles:

Guitarist Ukulele Player

Genres:

Rock Blues

From Gear Setup

fridaychild

over 1 year ago

A TWO PIECE'S SECRET WEAPON

I use this in my 2 piece band called "FUNCLE" and we've had people think we're playing to a bass backing track. If you don't have a bass player then get this and run setting 7 called "split bass" (control 2 all the way down) into a bass amp and your problems are solved. I experimented with several "fake bass" rigs and this is by far the most convincing one since it gates all the high frequencies and cleans up chords nicely. PRO TIP: Use a good ABY like the Radial Twin City to check phase and fix any potential ground issues when running multiple amps. Also, run a compressor like the Keeley into the Bass9 to give it a consistent signal to work with.

Roles:

Singer Guitarist Drummer

Genres:

Rock Alternative rock Indie rock