RIVER main
Passive 2-Channel Line Merger
$249.99
Backordered – More on the Way!
Product information "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.
| input type: | balanced |
|---|---|
| Input connectors: | XLR |
| Output type: | balanced |
| Product type: | Line summing unit |
| Output connectors: | XLR |
| Number of outputs: | 2 |
| Number of inputs: | 4 |
| Channels: | 2 |
| Ambient temperature during operation: | -20 - 70 °C |
| Transformer isolated: | Yes |
| Type: | passive |
| Dimension (H/W/D): | 50 x 140 x 128 mm |
| Ground lift switch: | Yes |
| Housing: | Aluminium continuous casting |
| Accessories (included): | rubber feet, Inscription label (tour label) |
| Relative Humidity: | < 80 % ( non-condensing ) |
| Max. input level (< 1% THD, 20 Hz): | +20 dBu |
|---|---|
| Input impedance (1 kHz): | 3.3 KOHM |
| THD (1 kHz, +4 dBu, unity, unweighted): | < 0,02 % |
| Max. input level (< 1% THD, 1 kHz): | + 32 dBu |
| IMD (SMPTE) (60 Hz / 7 kHz, 4:1, +4 dBu): | < 0,015 % |
| Frequency response (±1 dB, relative 1 kHz): | 10 Hz - 80 kHz |
| THD (30 Hz, +4 dBu, unity, unweighted): | < 0,9 % |
| Output impedance (1 kHz): | 600 Ω |
| Transformer ratio: | 1 : 1 |
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High Quality CableFor users who demand high-quality on stage, in the studio, or in the rehearsal room, we have developed this cable from our 3 STAR SERIES. This product is completely developed in Germany and therefore meets the relevant requirements for users with high-quality standards.
For professional applications on stage, in the studio or in the rehearsal room, excellent quality is available with our 5 STAR SERIES. This cable is made in the EU and therefore meets the relevant requirements for professional use.Durability and reliability find their master in the hard road everyday life! We have therefore developed a cable that is not only flexible, but also very robust. We use a special soft-PVC compound for all cables of the 5 STAR SERIES, which is friction resistant and bendable. For excellent signal transmission, but is also more abrasion resistance. The cable comes with a cable tie and two transparent, loose heatshrinks for labeling.Engineered in Germany & Made in EU: This stands for precision & quality.
For professional applications on stage, in the studio or in the rehearsal room, excellent quality is available with our 5 STAR SERIES. This cable is made in the EU and therefore meets the relevant requirements for professional use.Durability and reliability find their master in the hard road everyday life! We have therefore developed a cable that is not only flexible, but also very robust. We use a special soft-PVC compound for all cables of the 5 STAR SERIES, which is friction resistant and bendable. For excellent signal transmission, but is also more abrasion resistance. The cable comes with a cable tie and two transparent, loose heatshrinks for labeling.Engineered in Germany & Made in EU: This stands for precision & quality.
Professional Quality CableFor professional applications on stage, in the studio or in the rehearsal room, professional quality is available with our 4 STAR SERIES. This cable is completely developed in Germany and therefore meets the relevant requirements for professional use.We focus on durability and reliability, and have therefore developed a line of cables that are not only flexible, but also very robust. We use a special soft-PVC compound for all cables of the 4 STAR SERIES which has very good bending abilities. Of course, the jacket is not the only factor that makes a cable great, so we use a dense copper-spiral shielding, for professional transmission values. All these parts make the cable very flexible.