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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INPUTS: 2 balanced stereo audio +4dBu/50kΩ on XLR (F) connectors.
OUTPUTS: 10 balanced stereo audio +4dBu/50Ω on XLR (M) connectors.
MAX. OUTPUT LEVEL: 23.8Vpp.
BANDWIDTH (-3dB): >100kHz.
S/N RATIO: 89.3dB.
CROSSTALK: -78dB.
CONTROLS: Level (x2): -0.7dB to +5.1dB, mode selector switches.
COUPLING: AC (input); DC (output).
AUDIO THD + NOISE: 0.081%.
AUDIO 2nd HARMONIC: 0.006%.
POWER SOURCE: 230V AC, (115V AC USA), 6VA.
DIMENSIONS: 19" x 7" x 1U W, D, H, rack mountable.
WEIGHT: 2.6kg (5.7lbs) approx.
ACCESSORIES: Power cord.
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INPUTS: 8 unbalanced stereo audio, on RCA type connectors.
OUTPUT: 1 unbalanced stereo audio, on RCA type connectors.
SWITCHING SYSTEM: Mechanical, break-before-make.
CROSSPOINTS: 1 of 8.
SIGNAL LEVELS: Up to +30dBu.
BANDWIDTH(-3dB): 25kHz.
DIMENSIONS: 18.8cm x 10.2cm x 4.4cm (7.4” x 4” x 1.7”) W, D, H.
WEIGHT: 0.64kg (1.4lbs) approx.
OPTIONS: RK-81 19” rack adapter.
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INPUTS: 4 balanced stereo audio +4dBu/50kΩ on XLR (F) connectors.
OUTPUTS: 20 balanced stereo audio +4dBu/50Ω on XLR (M) connectors.
MAX. OUTPUT LEVEL: 23.8Vpp.
BANDWIDTH (-3dB): >100kHz.
S/N RATIO: 89.3dB.
CROSSTALK: -78dB.
CONTROLS: Level (x4): -0.7dB to +5.1dB, mode selector switches.
COUPLING: AC (input); DC (output).
AUDIO THD + NOISE: 0.081%.
AUDIO 2nd HARMONIC: 0.006%.
POWER SOURCE: 230V AC, (115V AC USA), 15VA.
DIMENSIONS: 19" x 7" x 2U W, D, H, rack mountable.
WEIGHT: 3.5kg (7.7lbs) approx.
ACCESSORIES: Power cord, rack "ears“.
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INPUTS: 5 unbalanced stereo audio, 1Vpp/50kΩ on RCA connectors.
OUTPUT: 1 unbalanced stereo audio, 1Vpp/100Ω on RCA connectors.
MAX AUDIO OUTPUT: 3Vpp.
AUDIO BANDWIDTH (-3dB): 100kHz.
GAIN RANGE: 60dB (via underside accessible trimmers).
AUDIO S/N RATIO: Better than 78dB.
CONTROL: 5 front panel buttons, contact closure via the link connector.
THD: Less than 0.08%.
POWER SOURCE: 12V DC, 100mA.
DIMENSIONS: 16.5cm x 12cm x 4.5cm (6.5” x 4.7” x 1.8”) W, D, H.
WEIGHT: 0.62kg (1.4lbs) approx.
ACCESSORIES: Power supply.
OPTIONS: RK-1 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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