| Content | LDMS828 - 19" Line Mixer 8 in 2 and Splitter 2 in 8
The LD Systems LDMS828 is a mixer, splitter, and booster amplifier in 19” rack format for flexible live and studio applications.
The LDMS828 has one stereo and six mono channels with individual LED level metres; all inputs and outputs are electronically balanced. Two mono channels are equipped with stereo TRS sockets, the other connectors are XLR sockets. The stereo channel has individual volume controls for input and output and a link button for looping through the signal; each mono channel has volume and panorama controls as well as a button that toggles between the splitter and mixer functions.
TheLDMS828 by LD Systems is impressive not only because of its practical features, but also because of its technical specifications. The broad frequency response of 5 - 40,000 Hz, a dynamic range of 85 dB, and the extremely low total harmonic distortion of 0.0008% guarantee maximum signal fidelity. The nominal working level of -10 dBV to +4 dBU makes the mixer/splitter suitable for connection to both professional and consumer equipment.
Mono input channels, line
6
Mono line input connectors
2 x 6.3 mm TS
Mono line input type
Electronically balanced
Stereo Line Input Channels
1
Stereo Line Input Connectors
2 x XLR
Stereo Line Input Type
Electronically balanced
Input impedance
(balanced) 50000 Ohm(s), (unbalanced) 25000 Ohm(s)
Max. input level
+ 21 dBu
Nominal working level
-10 dBV - +4 dBu
Mono output connectors
2 x 6.3 mm TS
Mono output type
Electronically balanced
Stereo output connectors
1 x XLR
Stereo output type
Electronically balanced
Output impedance
(balanced) 60 Ohm(s), (unbalanced) 30 Ohm(s)
Max. output level
+22 dBu
Frequency response
5 - 40000 Hz
Controls
Level Channel 1-6, Main Input Level, Main Link, Main Output Level, Power, Splitter/Mixer Channel 1-6
Indicators
In/Out Level Channel 1-6 (6 -segment), Input Level LED Indicator (6-segment), Output Level Indicator (6-segment), Power
Operating voltage
220 V AC - 240 V AC, 50-60 Hz
Mains connector
IEC power connector
Accessories (included)
Power cord
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INPUT: 1 s-Video: 1Vpp/75Ω (Y), 0.3Vpp/75Ω (C), on a 4-pin connector.
OUTPUTS: 5 s-Video: 1Vpp/75Ω (Y), 0.3Vpp/75Ω (C), on 4-pin connectors.
MAX. VIDEO OUTPUT: 2Vpp (Y).
VIDEO BANDWIDTH (-3dB): 230MHz (Y).
DIFF. GAIN: 0.08%.
DIFF. PHASE: 0.12Deg.
K-FACTOR: |
INPUTS: 1 unbalanced stereo audio 1Vpp/50kΩ on a 3.5mm mini jack; 3 unbalanced stereo audio 1Vpp/50kΩ on RCA connectors.
OUTPUTS: Stereo headphone on a 6.5mm connector; loudspeakers on a terminal block connector; automatic switching when a headphone is plugged in.
OUTPUT POWER: 2x10W (4Ω).
OUTPUT MUSIC POWER: 2x40W (4Ω).
BANDWIDTH (-3dB): 20kHz.
S/N RATIO: 77dB @1kHz.
CROSSTALK: -73dB @1kHz, all hostile.
CONTROLS: Input selector switches: bass (70Hz), mid (1kHz), treble (15kHz): +/-13dB; volume, balance and loudness controls.
COUPLING: AC.
AUDIO THD + NOISE: 0.5%.
AUDIO 2nd HARMONIC: 0.3%.
POWER SOURCE: 12V DC, up to 2.5A.
DIMENSIONS: 19cm x 13.5cm x 2.5cm (7.5” x 5.3” x 0.98”) W, D, H.
WEIGHT: 0.6kg (1.32lbs) approx.
ACCESSORIES: Power supply.
OPTIONS: RK-T2B 19" rack adapter.
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INPUT: 1 equalized digital audio, 110Ω on detachable terminal block, transformer coupled.
OUTPUTS: 4 x reclocked digital audio, 110Ω on detachable terminal block, transformer coupled.
SAMPLING: 32, 44.1, 48, 96kHz sampling frequencies.
STANDARDS: AES/EBU, IEC 958, S/PDIF and EIAJ CP340/1201.
EQUALIZATION: Automatic up to 200mV eye pattern.
DISPLAY: Power ON LED.
DIMENSIONS: 12cm x 7.5cm x 2.5cm (4.7” x 2.95” x 0.98”) W, D, H.
WEIGHT: 0.3kg (0.67lbs) approx.
POWER SOURCE: 12V DC, 100 mA.
ACCESSORIES: Power supply.
OPTIONS: RK-3T 19” rack adapter.
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INPUT: 1 genlock video, looping, 1Vpp/75Ω, on BNC connectors with a termination switch.
OUTPUTS: 6 black burst signals, 0.3Vpp/75Ω, (sync) 1 color bar output 1Vpp/75Ω. 2 x 1kHz, +4dBu/47Ω outputs on XLR connectors, 2 x 1kHz, 1Vpp/100Ω outputs on RCA connectors.
COLOR BAR: 13 selectable patterns.
PHASE ERROR: 1Deg.
S/N RATIO: 73dB.
CONTROL: H control: +/-1/2 line, 37nS steps; V control: 15.5 lines, 0.5 line steps. SCH control: 360Deg, by front touch switches. RS-232 control.
SYNC OSCILLATOR: Crystal controlled.
SC OSCILLATOR: Crystal controlled.
SYNC/SC: Fully genlocked.
STABILITY: 5ppm.
POWER SOURCE: 230V AC, 50/60Hz, (115V AC, USA) 10VA.
DIMENSIONS: 19" x 7" x 1U W, D, H, rack mountable.
WEIGHT: 2.5kg (5.5lbs) approx.
ACCESSORIES: Power cord.
OPTIONS: Kramer distribution amplifiers for additional burst or bar outputs.
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INPUTS: 2 balanced stereo audio +4dBu, 50kΩ on detachable terminal blocks.
OUTPUTS: 10 (or 2x5) balanced stereo audio +4dBu, 50Ω on detachable terminal blocks.
AUDIO BANDWIDTH (-3dB): >100kHz.
MAX. AUDIO OUTPUT: 18Vpp.
GAIN RANGE: 0.5dB to +9.5dB (4 trimmers, 2 for each input channel).
AUDIO S/N RATIO: 92dB @1Vpp.
CROSSTALK: -84.5dB.
CONTROL: Front selector switch for 1:10 or 2x1:5 operation, 4 front accessible gain trimmers.
COUPLING: AC (input), DC (output).
THD: 0.011% at 1kHz.
2ND HARMONIC: 0.003%.
POWER SOURCE: 230V AC, (115V AC USA), 21VA.
DIMENSIONS: 19" x 7" x 1U W, D, H, rack mountable.
WEIGHT: 2.6kg (5.7lbs) approx.
ACCESSORIES: Power cord.
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