JBL M-Patch Active-1
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JBL M-Patch Active-1 +4/-10dB output level switch - Image

+4/-10dB output level switch

Used to select the output level to allow compatibility with professional and consumer products with varied input sensitivities.

JBL M-Patch Active-1 Two independent headphone amplifiers - Image

Two independent headphone amplifiers

Each with its own volume control

JBL M-Patch Active-1 Dim switch - Image

Dim switch

Activate this switch to decrease the level of the outputs by 20db. The DIM feature effectively reduces the output signal and therefore the listening level to allow discussion in the control room without having to change the position of the volume knob.

JBL M-Patch Active-1 Mono switch - Image

Mono switch

Activate this switch to listen to the audio outputs in monophonic mode. This combines the stereo audio signal into a monophonic signal, which is useful when checking for any phase cancellation issues in the stereo signal.

JBL M-Patch Active-1 Volume control - Image

Volume control

As it is an ACTIVE device, the ACTIVE-1’s Volume control, controls an electronic circuit, which in turn adjusts the level of the audio going through the device, providing gain increase as well as attenuation.

JBL M-Patch Active-1 Talkback switches and volume - Image

Talkback switches and volume

A built-in talkback microphone, can be routed to the headphone outputs or the 2TRACK outputs. When the Talkback function is engaged, the Control Room output signal is attenuated by 20 dB.

JBL M-Patch Active-1 Monitor select switches - Image

Monitor select switches

The monitor select switches activate the A & B outputs respectively. The A & B outputs can be selected simultaneously.

Specs & Downloads

Item# ACTIVE-1


Precision control

The M-PATCH ACTIVE-1 accommodates four input sources (3 x stereo analog and 1 x USB) and three stereo analog outputs plus USB. In addition to the core functionality of providing seamless A/B switching between input signals and output speaker monitor systems, the ACTIVE-1 delivers a full complement of audio monitoring functions, including precision volume control, mono summing, mute, and dim (ducking). A handy footswitch-activated talk-back function, complete with on-board condenser microphone and selectable routing, has also been integrated, making the ACTIVE-1 the ideal low-cost solution for a broad range of studio production applications. Designed to provide the lowest-noise operation possible in an active monitor controller, the ACTIVE-1 is ideal for applications where both signal attenuation and boost is needed. In addition to the feature complement found on the PASSIVE-1, the ACTIVE-1 also includes LED level metering and convenient switch-selectable +4dBu/-10dBV input stage operation. The ACTIVE-1 features on-board USB, allowing for direct digital audio recording and playback when used with a computer DAW. The USB output mirrors the signals appearing at the analog 2 Track outputs, while the computer’s L/R output feeds the USB in. Housed in a sturdy metal chassis and fitted with a durable array of switches and secure connectors, the ACTIVE-1 is built to provide years of worry-free operation.

General Specifications

Frequency Range
Line Level Inputs and Outputs +0.5 (-1dB 10hz to 30kHz)
Noise Monitor A B, Studio Outputs, 2-Track
-92dBu Typical
Line Level (-10dB) -10dBu/+8dBu (NOM/MAX) ; Line Level (+4dB) +4dBu/+22dBu (NOM/MAX)
Dynamic Range
Line Inputs to outputs 114dB minimum
Crosstalk Mute/Level OFF
92dB @1kHz
Volume Control Range
Dim Switch -20dB ; Master Volume studio output gain 34dB max
Channels (2) ; Drivers (Legacy type and ASIO) ; Compatibility (All current USB Audio systems)


13.0 in (330 mm)
7.5 in (191 mm)
5.0 in (127 mm)
2.0 lbs (0.9 kg)

Powering Input

Included Power Supply
AC 9V, 1200 MA

Audio Interface

USB 1/2
Legacy type and ASIO
All current USB audio systems

Audio Output

Output Connectors
6 x TRS 1/4 inch (6.5mm) Balanced/Unbalanced
300 ohms (balanced) ; 150 ohms (unbalanced)
Output Level
+22 dBu
Master Volume Gain
34 dB (Studio Outputs)
Computer Audio Output
USB 2 Channel
Headphone Output
2 x 1/4 inch (6mm) TRS stereo output
Headphone Output level Gain
+32 dBu

Audio Input

Input Connectors
4 x TRS 1/4-inch (6.5mm) Balanced/Unbalanced
Maximum Input Level
24K ohms (balanced) ; 12K ohms (unbalanced)
Computer Audio Input
USB 2 Channel

Documents & Downloads

Reviews and Q&A

Customer Reviews

Rated 1 out of 5 by from USB stopped working after a month. The unit still works with the analogue inputs but the device no longer shows up as a usb audio out device on either my Windows PC or my Mac. JBL used to make great products. They may still, but this isn't one of them.
Date published: 2018-12-10
Rated 1 out of 5 by from Noise I bought this item because I needed a monitor controller and the price was right. This thing makes so much noise that it is unusable. I was out of town for a little over a month so I was unable to return. Oh well
Date published: 2018-12-22
Rated 2 out of 5 by from Midi is unusable Everything works as advertised except the midi connection. Squeals horribly and nothing stops it.
Date published: 2018-10-17
Rated 5 out of 5 by from Love it I bought it a couple weeks ago I love it made my system 10 times better
Date published: 2021-03-27
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