VLZ Pro Series
No matter how much
you spend on a microphone, its ultimate performance depends on how it
interacts with the preamp it's plugged into.
Many high end mic preamps can effortlessly
amplify the slightest sonic nuance, creating an aural panorama that's
breathtakingly realistic, excitingly vivid and truly 3-dimensional in
scope. For years, they've provided fidelity that just hasn't been
possible with the "stock" mic preamps built into mixing
consoles...until now.
XDR(tm) (eXtended Dynamic Range)
The focus of the VLZ Pro series is the XDR
Preamp. Constructed with meticulous testing and high quality the result
is an ultra clean sounding design. These mixers are made to be:
-
Highly resistant to damage caused by "hot patching" (caused by routing a phantom powered mic through a patch bay)
- Extremely independent of cable-induced impedance variations
- Able to reject extremely high RF levels without compromising high frequency response.
Because a mic preamp must amplify faint one
millivolt input signals up to a thousandfold (60dB), its rectification
components can also pick up radio frequency interference (RFI) from AM
and FM stations, cell phones and pager transmitters "even microwave
ovens"and amplify them to audible levels.
- In an effort to exclude the maximum amount of radio frequency interference Mackie incorporates
- Bifilar wound DC pulse transformers with high
permeability cores that reject RFI but don't attenuate the sound at
15kHz and above.
- High-precision components for critical areas of the XDR preamplifier.
- Direct-coupled the circuit from input to
output and used pole-zero cancellation constant current biasing (which
also avoids increased intermodulation distortion at high common mode
signal levels).
Bottom line for the non-technical: you can use
our new XDR mic preamps at the end of extremely-long cheap mic cables
in an RFI-saturated urban environment while talking on your cell
phone... without hearing a trace of RFI.
If a mic preamp isn't designed right, it will
actually sound different depending on the impedance of the microphone
and the cable load!
XDR's Controlled Interface Input Impedance system accepts an enormous
range of impedances without compromising frequency response.
Specifications
- Ultra-low noise, highest headroom in its class
- 6 new precision-engineered XDR(tm) Extended Dynamic Range premium studio-grade mic preamps with:
- Ultra-wide 0-60dB gain range
- 130dB dynamic range for 24-bit, 192kHz sampling rate inputs
- +22dBu line input handling
- Distortion under 0.0007% (20Hz-20kHz)
- Advanced DC-pulse transformer RF rejection
- 60mm long-wearing log-taper faders
- 14 line inputs (6 mono, 4 stereo pairs)
- Separate RCA-type tape/CD inputs and tape outputs (unbalanced)
- 2 aux sends with 15dB of gain above Unity
- Aux 1 pre/post
- Constant-loudness pan pots
- Switchable AFL/PFL Solo
- 2 stereo aux returns with EFX to Monitor switch
- Aux 1 master with Monitor/Post assign switch
- 3-band active EQ (80Hz, 2.5kHz, 12kHz)
- 18dB/oct. 75Hz Lo Cut filter eliminates stage rumble, wind noise, P-pops and low frequency recording studio room resonances
- Extra ALT 3-4 stereo bus for submixes, separate recording, monitor and "mix minus" feeds
- Control Room/Phones multi-input source matrix
- Phantom power for premium condenser mics
- Rugged steel chassis, sealed rotary controls
- Built-in power supply --no wall wart!
