Electro-Voice DMC-1122X, DMC-85 User Manual
Specifications and Main Features
Controller Specifications:
- Two channels for the Mono to Stereo configuration and two channels for sensing
- The Linkwitz-Riley Type IV.
- The cutoff frequency is at 1.48kHz.
- The gain of the system stands at 5 dB above the nominal value.
- Typical THD of the device is at 0.03% and the maximum stands at 0.1%.
- The system produces a sound output of -86 dBu to each output covering a range of 20,000 Hz.
- After electronically balancing the signal, the input of electrons has a maximum value of 18 dBu.
- Impedance value of 27,000 Ohms and .0015 µF amplifiers available.
- Floating Differential is set to 145 V rms at the lower and higher ends.
- Each side of the imbalanced Ammeter is set at 100 Kilohms.
- +18 dBu is the maximum load and for doing so the minimum impedance must be weighted to be at 600 Ohms.
- The full power requirements of the device are 100,120,220,240 V AC with a range of 50 to 60 pulses and a total weight of 13 watts.
- A steel chassis is painted around the device.
- The front surface is painted a dull grey while the back panel is matte black with white graphics.
- EIA 19 inch panel is used for mounting with a height of 1.75 inches and a depth of 8.97 inches.
System Specifications:
- A range of 60 to 16,000 Hz can be covered with the device installation.
- The data provided indicates that the efficiency of the device ranges between LF or HF on the low and high ends are 4.8 % and 25 % respectively.
- The long term average power handling capacity for Low Frequency and High Frequency is 300W and 60 W standard.
- The average long term for MLA is 14 and 15 watts which also in terms of acoustic output.
- Sensitivity:
- LF (1/1 watt): 99.0 dB
- LF (300 watts): 124.0 dB
- HF (1/1 watt): 110.0 dB
- HF (60 watts): 128.0 dB
- Beamwidth: Horizontal: 80° (1,200-16,000 Hz), Vertical: 55°
- Distortion: 2nd and 3rd Harmonics for Different Frequencies
- EN Speaker specifications *
- Transducer Complement: HF: DH2T driver, HP-type 80° x 55° horn
- Enclosure Construction: Plywood 18mm 13ply Birch
- Finish: Black textured paint
- Woofer Dimensions: 12-in DL type
- Impedance: Nominal: LF/HF 8/8 ohms Least 8.6/6.6 ohms
- Recommended Amplifier Power: LF 300-600 Watts; HF 125-250 Watts
- Weight: Net Wt: 26.8kg, Shpg wt: 29.0kg
Frequently Asked Questions
Q1. What is the main role of the DeltaMax™ system?
A1. DeltaMax™ system has been created for cross layer sound reinforcement in the touring sound and permanently installed sound systems featuring a two way biamped speaker system with the DeltaMax™ system electronic controller.
Q2. What are the types of connections of the DMC-1122X controller?
A2. DMC-1122X controller has electronically balanced differential inputs and outputs with 3 PIN XLR-F connectors and also provides sense channel inputs.
Q3: In what manner is the crossover frequency determined for this system?
A3: The crossover frequency for the DeltaMax™ system is defined as 1,480 Hz and is implemented with a 4th order Lee’'s -Witz-Riley filter.
Q4: List the suitable power amplifiers meant for DeltaMax™ system.
A4: Using professional power amplifiers whose continuous ratings of 300-600 watts for LF and 125-250 watts for HF will deliver the best results.
Q5: Explain the working of the protection circuitry of DeltaMax™ system.
A5: The protection circuitry suppresses the loudspeakers circuitry into overheating, overexcursion and amplifier clipping only at the presence of disastrous circumstances to ensure physiology accurate frequency response.
Q6: Is it possible to use more than one DeltaMax™ system alongside each other?
A6: Yes, DeltaMax™ systems may be employed alongside other such systems as the controller is able to slave the gain control busses with provisions for linking multiple units and accurate level control among them.
Q7: What the low frequency shelving filter does to enhance productivity?
A7: The Low Frequency shelving filter enables the users to restrain the low frequency output when several cabinets are used simultaneously so as to minimize the imbalances resulting from mutual coupling.
User Manual
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