. Palmer Passive 2-Channel Line Merger .
Palmer Passive 2-Channel Line Merger
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  • Palmer Passive 2-Channel Line Merger
  • Palmer Passive 2-Channel Line Merger
  • Palmer Passive 2-Channel Line Merger
  • Palmer Passive 2-Channel Line Merger
  • Palmer Passive 2-Channel Line Merger
  • Palmer Passive 2-Channel Line Merger

Palmer Passive 2-Channel Line Merger

2.949,00 kr.
Inkl. moms
RIVER main

Sometimes it is necessary to send two stereo signals to one device, for example, when two mixing consoles have to drive a stereo power amplifier. In practice, this is rarely possible without ground loops occurring. The Palmer main solves this type of problem. It mixes two stereo input signals via a resistor matrix, whereby the input pair A is galvanically isolated by a transformer in order to avoid ground loops.

The Palmer main works purely passively. The result is a particularly low noise floor and a neutral sound. Thanks to large transformers, it can handle high-level signals up to +20 dBu without distortion. The transformers also make it possible to assign the input pair A unbalanced while the output signal remains balanced.

The passive mode of operation without a power supply makes the Palmer main particularly reliable and failure-proof. The aluminium/steel housing and XLR sockets are also best suited to the rough everyday life on stage. The Palmer main merge box solves typical sound reinforcement problems in the simplest way with uncompromised sound quality.

Antal
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Ref: PMAIN

  • Merge two stereo signals on one output pair
  • Allows the combination of two devices, e.g. two mixers to a PA System
  • Galvanic transformer isolation of outputs
  • Switchable ground lift to isolate ground loop hum
  • Neutral sound
  • High headroom (+20 dBu max. input level)
  • Passive construction, no power supply required
  • Extremely fail-safe
  • Solid casing made of aluminium and steel
  • Engineered in Germany

Product typeLine summing unit
Channels2
Typepassive
Transformer isolatedYes
Number of inputs4
input typebalanced
Input connectorsXLR
Number of outputs2
Output typebalanced
Output connectorsXLR
Ground lift switchYes
HousingAluminium continuous casting
Dimension (H/W/D)140 x 50 x 128 mm
Weight0,8 kg
Ambient temperature during operation-20 - 70 °C
Relative Humidity< 80 %, not condensing
Accessories (included)Inscription label (tour label)
Accessories (included)rubber feet

Audio

Max. input level (< 1% THD, 20 Hz)+20 dBu
Max. input level (< 1% THD, 1 kHz)+ 32 dBu
Frequency response (±1 dB, relative 1 kHz)10 Hz - 80 kHz
Input impedance (1 kHz)3.3 kOhm
Output impedance (1 kHz)600 Ohm(s)
THD (30 Hz, +4 dBu, unity, unweighted)< 0,9 %
THD (1 kHz, +4 dBu, unity, unweighted)< 0,02 %
IMD (SMPTE) (60 Hz / 7 kHz, 4:1, +4 dBu)< 0,015 %
Transformer ratio1 : 1
Palmer
PMAIN

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The PMBL-ACTIVE is a 2-channel stereo line level merge box that can be used to merge two stereo line signals into one stereo output. One classic application: routing two mixing desks to one PA system. The unit has enough amplification to boost even semi-professional levels accordingly. The input channels are galvanically isolated from one another. Each channel offers a mute switch and the ability to mix the stereo signal down to mono. The unit is housed in a 1 U/9.5" case and has a built-in power supply.

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