The Mooer Brown Sound is a mini preamp pedal that puts a full two-channel tube-amp-style preamp, EQ and speaker cabinet simulation into a compact stompbox. Mooer released it in May 2018 as the 015 Brown Sound, one of two new Micro Preamps introduced alongside the Taxidea Taxus1. It has since been superseded by the updated 005 Brown Sound 3, which MusicRadar describes as a tiny preamp pedal offering a pure 5150 emulation on a budget2.
Mooer describes its Micro Preamps as "sonically accurate digital recreations of the preamp sections of popular tube amplifiers"3. Each pedal in the series comes with dual channels, integrated speaker cabinet simulation and dual operating modes3. Gearnews noted at launch that the two original models were "based on two pretty familiar guitar amps/ tones, which I am sure you can guess," without naming the amps outright1.
What it does to your sound
The Brown Sound is a dual channel preamp, so you can set up two different sounds and switch between them, the way you would between an amp's clean and dirty channels. Each channel has its own Gain and Volume controls, and the pedal carries a 3-band EQ shared across the voicing1. The tone it chases is a high-gain American amp sound: MusicRadar calls the 005 Brown Sound 3 a "pure 5150 emulation on a budget"2.
Mooer's own description of the updated model gives a sense of the character the series aims for: "Brown sound 3 has a lush clean channel that can reach mild breakup with the gain cranked and a drive channel that is tight, harmonically balanced, smooth as silk and has saturation in spades"3.
Because it is a digital recreation rather than an analog circuit, Gearnews observed at launch that "these may not be aimed at tone connoisseurs"1. For players who want a small, affordable way to carry an amp's worth of gain and EQ on a pedalboard, that trade-off is the point of the format.
Controls and connections
| Control or jack | What it does |
|---|---|
| Gain (per channel) | Sets the amount of drive for that channel1 |
| Volume (per channel) | Sets the output level for that channel1 |
| 3-band EQ | Bass, middle and treble tone shaping1 |
| Channel switching | Selects between the two channels1 |
| Input | 1/4" mono jack, 1 meg Ohm impedance (005 version)3 |
| Output | 1/4" mono jack, 100 Ohm impedance4 |
The output is designed to feed a power amp or an amplifier's effects return, according to Mooer's product page4.
Powering it
The Brown Sound runs on an external supply only. Mooer specifies a DC 9V 300mA center pin negative power supply4, and the pedals are too small to house a 9V battery compartment1.
At 300mA, the Brown Sound draws more current than many analog mini pedals. Check that your pedalboard power supply can deliver 300mA on a 9V center negative output before planning around it.
Going straight into a PA or interface
The built-in speaker cabinet simulation is what makes the Brown Sound usable without a guitar cab. Gearnews noted it makes the pedals "handy for recording or straight into a PA system"1. With the cab sim engaged, the output jack can go directly to a mixing desk or recording interface; with a real amp, the effects return is the intended destination4.
Where it came from
Mooer launched the Brown Sound in May 2018 as model 015 in its Micro Preamp series, announced alongside the 014 Taxidea Taxus15. MusicPlayers reported the pair as "now available at a street price of $99 each"5, and MusicRadar's launch coverage likewise gave $99 apiece6. The original 015 is described by Mooer as the MKI version of the design4.
The line continued: the 015 made way for the updated 005 Brown Sound 32, and Mooer later expanded the concept with pedals like the Preamp Model X2, a dual-channel digital preamp with editable presets and third-party impulse response support.
What reviewers said
Press coverage at launch was positive on value. Gearnews concluded:
"But for the price point, I don't think you can go far wrong with these preamps."
The same coverage flagged the digital nature of the pedals as the main caveat for players chasing analog character1. MusicRadar's later coverage of the series positions the 005 Brown Sound 3 as a budget route to a 5150-style preamp tone2.
Videos
Taylor Danley
The Pedal Guy
Mad Man Music
Questions
Does the Mooer Brown Sound take a battery?
No. The pedal is too small to house a 9V battery compartment, so it has to run from an external power supply delivering 9V DC at 300mA with a center negative plug. Plan on a dedicated spot on a pedalboard power supply.
Is the Mooer Brown Sound analog or digital?
It is digital. Mooer describes its Micro Preamps as sonically accurate digital recreations of the preamp sections of popular tube amplifiers, and the 015 Brown Sound is listed by the maker as a digital preamp.
Can I plug the Brown Sound straight into a PA or recording interface?
Yes. It has a built-in speaker cabinet simulation, which makes it handy for recording or going straight into a PA system. Its output is a 1/4 inch mono jack with 100 Ohm impedance, and Mooer says it can connect to a power amp or an amplifier's effects return.
What is the Mooer Brown Sound's model number?
The original model is the 015 Brown Sound, part of Mooer's Micro Preamp series. It launched in May 2018 alongside the 014 Taxidea Taxus, and was later updated as the 005 Brown Sound 3.
How much does the Mooer Brown Sound cost?
The 015 Brown Sound carried a recommended retail price of $99 when it launched in May 2018, with press reporting a $99 street price. Its successor, the 005 Brown Sound 3, was listed at $99 in a 2026 MusicRadar review.
Sources (6)
- Mooer adds new Taxidea Taxus and Brown Sound micro preamps to its line-up, gearnews.com, 2018-05-05
- “The beauty of Anti is that it is way more than just a 5150 emulation”: Universal Audio Anti 1992 High Gain Amp pedal review, MusicRadar, 2024-11-06
- 005 - Brown Sound 3_MOOER Audio, MOOER Audio
- 015 - Brown Sound_MOOER Audio, MOOER Audio
- Mooer Adds Two New Micro Preamps, MusicPlayers.com, 2018-05-04
- Mooer debuts 2 new Micro Preamps, the Taxidea Taxus and Brown Sound, MusicRadar, 2018-05-09
