





Mackie ProFX6v3 6-Channel Analog USB Mixer
- Two Onyx preamps with 60 dB gain
- 24-bit, 192 kHz USB interface
- 24 built-in GigFX effect presets
- Switchable Hi-Z instrument inputs
- Latency-free headphone monitoring blend
Product Info
| Brand | MACKIE |
|---|---|
| Model / SKU | PROFX6V3 |
| UPC | 663961057867 |
| Availability | In stock and ready to quote |
The Mackie ProFX6v3 is a compact 6-channel analog mixer with a built-in USB audio interface for small live systems, desktop recording, streaming, and content production. It brings microphones, instruments, stereo line sources, and computer playback into a single hands-on control surface. This format suits solo performers, podcasters, musicians, and creators who need straightforward source control without a large mixer.
Channels 1 and 2 use Mackie Onyx microphone preamps with up to 60 dB of gain. Each accepts a microphone or line-level source through its combo input, and switchable Hi-Z operation lets a guitar or bass connect directly by 1/4-inch cable. The preamps are designed for clean gain staging across voice, acoustic instruments, and direct instrument sources.
The mixer uses 2-band shelving EQ on channels 1 and 2, with low control centered at 80 Hz and high control centered at 12 kHz. A 100 Hz low-cut filter on the mic channels helps reduce low-frequency rumble before it reaches the main mix. Global 48V phantom power supports compatible condenser microphones connected to the mic inputs.
Its USB 2.0 interface operates at 24-bit resolution and supports 44.1, 48, 96, and 192 kHz sample rates. The 2x4 USB design records a stereo mix to a Mac or PC while providing two stereo computer-return paths. A dedicated blend control allows headphones to mix live inputs with computer playback for direct, latency-free monitoring.
The built-in GigFX processor supplies 24 effects presets, including room, hall, plate, delay, chorus, echo, flange, and more. Balanced XLR and 1/4-inch main outputs can feed powered speakers, amplifiers, or other line-level equipment. With its small 7.5-inch-wide footprint, the ProFX6v3 works well as the front end of a compact PA, recording desk, or streaming station.
Key Features
- Two Onyx Mic Preamps: Delivers up to 60 dB of gain for microphones and low-level sources.
- Switchable Hi-Z Inputs: Lets guitars and basses connect directly to channels 1 and 2.
- 24-Bit/192 kHz USB: Supports high-resolution stereo recording and computer playback.
- GigFX Effects Engine: Provides 24 onboard effects presets without requiring external processing.
- Direct Monitoring Blend: Mixes live signals and DAW playback in headphones without monitoring latency.
- 100 Hz Low-Cut Filter: Helps reduce rumble and unwanted low-frequency buildup on mic channels.
Design & Installation
The ProFX6v3 is a desktop-format analog mixer measuring 7.5 inches wide, 8.4 inches deep, and 2.9 inches high. Channel controls use compact rotary level controls rather than long-throw faders, keeping the layout efficient for close-range operation. Two eight-segment main meters provide left/right level indication from -24 dBu through overload.
Connect microphones, line-level gear, or Hi-Z instruments to channels 1 and 2, then connect a stereo source to the 1/4-inch inputs or 1/8-inch stereo input as needed. Run the balanced main outputs to powered speakers, an amplifier, or other line-level equipment, and connect a computer through USB for recording and playback. The mixer uses a locking 12V DC, 2A external wall-mount power adapter and can be fitted to a microphone stand with the optional Atlas AD-11B adapter and specified mounting hardware.
| Model | ProFX6v3 |
|---|---|
| Product Type | Professional analog mixer with USB |
| Total Channels | 6 |
| Microphone Preamps | 2 Onyx mic preamps |
| Mic Preamp Gain | Up to 60 dB |
| Mic/Line Input Channels | Channels 1 and 2 |
| Mic/Line Connectors | XLR and 1/4-inch combo inputs |
| Instrument Inputs | 2 switchable Hi-Z inputs on channels 1 and 2 |
| Channel Insert Jacks | 2 unbalanced 1/4-inch inserts |
| Stereo Line Inputs | 1 stereo pair of 1/4-inch inputs |
| Stereo Auxiliary Input | 1/8-inch stereo line-level input |
| Mic Input Impedance | 3.3 kOhms |
| Other Input Impedance | 20 kOhms or greater |
| Channel Insert Return Impedance | 10 kOhms |
| Maximum Input Level | +22 dBu |
| EQ Bands | 2-band EQ on ProFX6v3 |
| Low EQ | ±15 dB at 80 Hz |
| High EQ | ±15 dB at 12 kHz |
| Low-Cut Filter | 100 Hz, 18 dB/octave |
| Phantom Power | 48 VDC to all mic channels simultaneously |
| Effects Processor | GigFX digital effects engine |
| Effects Presets | 24 |
| USB Format | USB 2.0 |
| USB Interface Configuration | 2x4 |
| USB Recording Input | 1 stereo input to computer |
| USB Playback Outputs | 2 stereo outputs from computer |
| USB Audio Resolution | 24-bit |
| Supported USB Sample Rates | 44.1, 48, 96, and 192 kHz |
| USB Recording Source | Stereo main mix, pre-main level control |
| Direct Monitoring | Headphone blend between USB 1-2 and live inputs |
| Main Outputs | Balanced XLR and 1/4-inch TRS |
| Maximum XLR Main Output Level | +28 dBu |
| Maximum Other Output Level | +22 dBu |
| Phones Output Impedance | 25 Ohms |
| Other Output Impedance | 120 Ohms unbalanced; 240 Ohms balanced |
| Frequency Response | 20 Hz to 30 kHz, +0/-1 dB |
| THD+N | Less than 0.03%, mic input to main out at +4 dBu |
| Equivalent Input Noise | -126 dBu, 150 Ohm source, 20 Hz to 20 kHz |
| Residual Output Noise | -95 dBu with master and channel levels off |
| Adjacent Input Crosstalk | -90 dB at 1 kHz |
| Input-to-Output Crosstalk | -80 dB at 1 kHz |
| Common-Mode Rejection Ratio | 70 dB, mic input to main out, maximum gain, 1 kHz |
| Main Metering | Two 8-segment L/R columns |
| Main Meter Range | OL, +14, +8, +4, 0, -4, -12, -24 |
| Power Input | 12 VDC at 2A |
| Power Adapter Type | Class I hard-wired wall-mount adapter with locking barrel connector |
| AC Power Range | 100-240 VAC, 50-60 Hz |
| Height | 2.9 in / 74 mm |
| Width | 7.5 in / 191 mm |
| Depth | 8.4 in / 213 mm |
| Weight | 2.6 lb / 1.2 kg |
| Optional Carry Bag | Part number 2051719 |
| Optional Mic Stand Adapter | Atlas AD-11B |
Can I plug a guitar or bass directly into the ProFX6v3?
Yes. Channels 1 and 2 have switchable Hi-Z operation on their 1/4-inch inputs for direct connection of guitars, basses, and similar instruments.
Will it work with condenser microphones?
Yes, compatible condenser microphones can use the mixer's global 48V phantom power. Phantom power is switched on or off for all mic inputs simultaneously.
Can I record to a Mac or Windows computer?
Yes. The USB 2.0 interface records a stereo mix to a computer at up to 24-bit/192 kHz, subject to the selected computer and software settings.
Does USB record each input as a separate track?
No. The mixer sends a stereo main mix to the computer over USB rather than separate USB tracks for each input channel.
What speakers can I connect?
Connect powered speakers, an amplifier, or other line-level equipment to the left and right main outputs. The mixer provides balanced XLR and 1/4-inch main-output connections.
Can I monitor without computer latency?
Yes. The headphone blend control combines the live mixer signal with USB computer playback for direct monitoring.


















