Mackie 2404VLZ4 24-Channel 4-Bus FX Mixer with USB

The Mackie 2404VLZ4 24-Channel 4-Bus FX Mixer with USB from the VLZ4 4-Bus Series features Onyx microphone preamps in a high-headroom / low-noise 4-bus design with a feature set suitable for live sound. The mixer is equipped with dual 32-bit RMFX+ effect processors, each with 24 effects including tap delay. It also includes compression on dedicated channels and subgroups that allow for simple, sweet dynamic control.

Additionally, both of the FX processors feature a tap delay and the delays may easily be synchronized with the song at the tap of a finger. The processed signal may be sent directly to the mains and monitors from the effects section or re-routed to the 2 stereo channels to bring them through the EQ and AUX section, utilizing the 60mm fader to draw them into the mix.

The 24-channel, 4-bus FX mixer has 8 single-knob compressors to stop the dynamic signals from poking out of the mix. There are 4 compressors are located on the last 4 microphone inputs so that critical signals (such as vocals, snare drum, guitar or keyboards) may be addressed. In addition, there are single-knob compressors on each of the 4 subgroups so that grouped signals (such as a drum set or a choir of vocalists) may be blended together for paramount smoothness.

This mixer also features a 4 x 2 USB recording and playback function. This means that up to 4 signals may be recorded simultaneously and a stereo mix returned to the mixer for playback. Its built-like-a-tank construction delivers years of reliable use under strenuous conditions. The VLZ4 4-Bus Series offers a compact FX mixer solution in a design thats flexible, rugged, and professional.

Key Features

• 4-bus mixer featuring high-headroom, low-noise design
• Boutique-quality Onyx microphone preamps
  Wide 60 dB gain range
  128.5 dB dynamic range
  +22 dBu line input handling
  Extended frequency response
  Distortion under 0.0007% (20 Hz to 50 kHz)
• Improved RF rejection, suitable for broadcast applications
• Phantom power for condenser microphones
• Dedicated inline channel compression for critical inputs
• High-headroom line inputs with dedicated inserts
• 3-Band EQ with sweepable mid-range
• 18 dB/octave 100 Hz low-cut filter on microphone input channels
• Level, pan, solo, and overload / mute LEDs on each channel
• Four subgroups featuring dedicated inline compressors for total dynamic control
• Six AUX sends with inserts, pre / post fader, and internal/external FX send options
• Two stereo returns and four group outs with inserts
• Dual 32-bit RMFX+ processors featuring 24 gig-ready reverbs, choruses, and tap delay for live applications
• Integrated 4x2 24-bit USB interface
  Stream subgroups or master L / R to your PC or Mac for recording
  Use your favorite plug-in live via AUXES 5 / 6
  Convenient stereo return to mains for music playback or return to channel to implement EQ, AUXES, and more
• PFL / AFL Solo modes
• 60mm long-wearing, log-taper faders
• High-resolution, 12-segment stereo meters
• Sealed rotary controls resist dust and grime
• Built-like-a-tank rugged steel chassis with powder-coat finish
• High-visibility, high-contrast controls deliver convenient at-a-glance visual feedback
• Universal power supply for worldwide use
• Applications: Live sound mixing, houses of worship, clubs, gymnasiums, banquet halls, conference rooms, boardrooms, multi-track studio and field recording, video post-production, multimedia applications, broadcast, and many more

Technical Specifications

Noise
Main Mix Noise:
Main Mix Fader at Unity, Channel Faders Down: -87 dBu (-91 dB signal to noise ratio, ref +4 dBu)
Main Mix Fader at Unity, Channel Faders at Unity: -81.5 dBu
(20 Hz to 20 kHz bandwidth, 1/4" main out, channel gains at unity, channel EQs flat, all channels assigned to main mix, odd channels panned left, even channels panned right)

Total Harmonic Distortion (THD)
Microphone In to Insert Send: <0.001%
Microphone In to Main Out: <0.005%
(1 kHz at 15 dB gain, 20 Hz to 20 kHz bandwidth)

Crosstalk / Attenuation
Channel Mute Switch Engaged: -90 dBu
Channel Fader Down: -88 dBu
(1 kHz relative to +10 dBu, 20 Hz to 20 kHz bandwidth, microphone in, 1/4" main out, gain at unity)

Frequency Response
Microphone input to main output (gain at unity)
+0, -1 dB, 20 Hz to 50 kHz
+0, -3 dB, <10 Hz to >100 kHz

Equivalent Input Noise
150 Termination: -128.5 dBu, 20 Hz to 20 kHz
Microphone input to insert send out, maximum gain

Common Mode Rejection Ratio
Better than -70 dB at 1 kHz

Maximum Level
Microphone In: +21 dBu
All Other Inputs: +21 dBu
Main Mix XLR Out: +27 dBu
All Other Outputs: +21 dBu

Impedance
Microphone In: 2.7 k
Channel Insert Return: 2.5 k
All Other Inputs: 10 k or greater
Tape Out: <10
All Other Outputs: 120

Equalizer
3-Band EQ (Mono Channels):
High Shelving: ±15 dB at 12 kHz
Mid Peaking: ±15 dB sweep 100 Hz to 8 kHz
Low Shelving: ±15 dB at 80 Hz
Low Cut Filter: 18 dB/octave, -3 dB at 100 Hz
4-Band EQ (Stereo Channels):
High Shelving: ±15 dB at 12 kHz
Hi Mid Peaking: ±15 dB at 2.5 kHz
Low Mid Peaking: ±15 dB at 400 Hz
Low Shelving: ±15 dB at 80 Hz

USB
Format: USB 1.1
I / O: Stereo Input, 4-Channel Output
A / D / A: 24 bit, 44.1 kHz / 48 kHz

Power Consumption
55 W, 100 to 120 VAC, 50 to 60 Hz

Operating Temperature
32 to 104°F (0 to 40°C)
Dimensions
Height:
Front: 1.8" (46.3 mm)
Rear: 6" (153 mm)
W x D: 29.4 x19.1" (748.0 x 486.0 mm)

Weight
31.0 lb (14.1 kg)