Shure P4M

The P4M is a highly versatile four-channel, two-bus stereo mic/line mixer designed to optimize use of personal (in-ear) monitors like the Shure PSM 400 in live performance. The P4M features four balanced mic/line inputs, each with level and panning controls. Corresponding XLR split outputs allow input signals to pass through the unit unaffected, while providing an independent mix. There are a number of applications that benefit from the features the P4M has to offer:

Personal Stereo Monitors
When coupled with personal monitors, the P4M allows performers the ability to adjust personal mix levels onstage - even during a performance - without affecting the front-of-house system. This enables users to create and maintain consistent monitor mixes, regardless of what the venue can provide for monitors.The P4M is available individually for use with Shure PSM 600 and PSM 700 Personal Monitor Systems; or packaged with Shure's PSM 400 Hardwired and Wireless Performance Packs.

Installed Sound Systems
The P4M can also be used as a small "piggyback" mixer in applications such as houses of worship, or courtrooms. The unit acts as a console bypass when a permanent installationofa large, operator-controlled mixing console may require just a few microphones for smaller events. This allows the user easy access and control of up to four signals without having to utilize the larger console.Given its dual-bus output capabilities, the P4M can also serve as a "two zone" mixer, routing any combination of mic or line-level signals to two different zones.

More Than Four Inputs
The P4M has a pair of 1/4-inch auxiliary inputs that can be used to add channels from other sources. For example, multiple P4M mixers can be linked together to increase the number of inputs. In addition, sources not present in the original mix - such as a click track for live percussion - may be included via the auxiliary inputs.

Features:

• Four mic/line inputs (XLR-1/4 inch combination plugs)
• Four split outputs
• Two auxiliary inputs (1/4 inch)
• Two mix outputs (1/4 inch)
• Four concentric level and pan knobs -- one per input
• DC out (to provide power to a P4T or an additional P4M)
• Frequency Response (Ref: 1kHz, controls centered): 20 Hz to 20 kHz +/- 2 dB
• All rack mounting hardware included

Specifications:

• Frequency Response: 20 Hz to 20 kHz, +/-2dB
• Inputs
      * 1-4 (front panel)
         * Gain (maximum): 43 dB
         * Impedance (at 1kHz): 5800 ohms
         * Input Clipping Level: +12 dBV
         * Crosstalk: -100 dB
         * Common Mode Rejection:>75 dB
      * Aux In
         * Gain (maximum): 0 dB
         * Impedance (at 1kHz): 18 kohms (each); 9100 ohms (1/L mono)
         * Input Clipping Level: +12 dBV
         * Crosstalk: -90 dB
         * Common Mode Rejection:>70 dB
• Outputs
      * Split 1-4
         * Noise (100 Hz to 22 kHz): -110 dBV
         * Distortion (THD at 1kHz): .0005%
         * Crosstalk: -100 dB
      * Mix Out
         * Impedance: 500 ohms (unbalanced); 1 kohm (balanced)
         * Output Clipping Level: +5 dBV (10 kohm balanced load, -30 dBV input ch. 1-4)
         * Noise (100 Hz to 22 kHz): -100 dBV (all controls CCW); -62 dBV (all controls CW)
         * Distortion (THD at 1kHz):<.05% (0dBV output)
         * Crosstalk: -70 dB
• LEDs: Resultant Mix Out Level
      * Green: -30 dBV
      * Yellow: -10 dBV
      * Red: 0 dBV
• Current: 120 mA max.
• Power Requirements: Operating voltage 14-18 Vdc; supplied with one of the following external power supplies:
      * Model PS40: 120 Vac, 60 Hz input
      * Model PS40E, Model PS40UK: 230 Vac, 50/60 Hz input
• Phantom Power: The P4M does not produce phantom power, but phantom power is allowed to pass through Split Outputs 1-4 to inputs 1-4 respectively
• Audio Polarity: All outputs in polarity with all inputs
      * XLR Pin 2 is hot with respect to Pin 3; Pin 1 is ground
      * 1/4" TRS tip is hot with respect to ring; sleeve is ground
• Temperature Range
      * Operating: -7° to 49° C (20° to 120° F)
      * Storage: -29° to 74° C (-20° to 165° F)
• Overall Dimensions: 44 mm H x 218 mm W x 162 mm D (1.72" x 8.60 x 6.37")
• Net Weight: 1.20 kg (2 lbs, 10 oz)