Introduction to the D&R 4000 Series
The D&R 4000 Series represents a significant advancement in audio mixing console technology, distinguished by its innovative in-line mixing approach. This series offers exceptional technical performance at a competitive price point, achieved through a modular design with interchangeable channels facilitated by a plug and flatcable wiring system. A key innovation is the unique routing system that minimizes complex switching and wiring, reducing component count and enhancing reliability.
The console's design prioritizes user experience with a clear, unerasable lettering protected by a polycarbonate film and a sturdy metal housing complemented by attractive wooden sides. The control layout is intuitive, ensuring a pleasant mixing experience without the common confusion found in other mixing desks. Developed from over a decade of research in mixing desk design, the 4000 Series embodies numerous innovations and advancements, offering professional-grade performance at competitive prices.
Design Highlights
Key design features include F.E.T. switching for minimal distortion and high shut-off, passive filtering for superior transient response, and the use of discrete low-noise transistors and Bi-Fet op-amps for exceptional audio quality. The console boasts a minimum audiopath for maximum transparency, with minimal crosstalk and control interaction due to its excellent circuit design and high-quality printed circuit board layout, contributing to a stable, low-noise product.
The power supply is housed in a 19-inch rack-mounting case, featuring three independent, protected power supplies with very low ripple. The series offers a comprehensive range of features, including 11-segment bargraph meters, 48V phantom power, click-free phase reverse switches, R.F. screened microphone preamplifiers, simultaneous sync/remix inputs, a 100 Hz high-pass filter, and a 4-band sweep equalizer with unique, non-interacting controls.
Further capabilities include 6 auxiliary sends with pre/post switching, a novel subgrouping system allowing flexible routing without extensive patching, sync and effect inputs per channel, monitor and channel mute/PFL functions, high-quality faders, insert points per channel, and simultaneous multitrack feed outputs. The master section includes a phase correlation meter and a lineup oscillator. The system supports talkback communication and offers a comprehensive control room monitor section with alternative loudspeaker switching.
Key Features Overview
- 11-segment peak-bargraph meters per channel
- 48V phantom powering, switchable per channel
- Click-free phase reverse switch
- Extremely low noise, R.F. screened, balanced mic amps
- Simultaneous sync/remix inputs
- 100 Hz high-pass filter
- 4-band parametric equalizer
- 6 auxiliary sends (pre/post switchable)
- Flexible subgrouping system
- Sync and effect inputs per channel
- Monitor and channel mute/PFL
- 100 mm channel fader, 60 mm monitor fader
- 2 inserts per channel
- Simultaneous multitrack feed outputs
- Master section with phase correlation meter
- Low distortion 1 KHz line-up oscillator
- Talkback communication system
- Modular 64-point patchbay
- XLR and jackplug connections
