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Meyer Sound MPS-488HP – 8 channel External Power Supply
The MPS-488HP IntelligentDC power supply delivers power and balanced audio to up to eight Meyer Sound loudspeakers that require an external DC power supply.
The 1-space rackmount MPS-488HP can be used with a number of products that feature IntelligentDC technology, such as: MM-4XP miniature loudspeaker, MM-10XP miniature subwoofer, and HMS series surround loudspeakers.
Meyer Sound’s externally powered loudspeakers are equipped with onboard amplification and signal-processing circuits that store DC power and tolerate voltage drops (up to 30 percent), thereby accommodating light-gauge cables and lengthy cable runs. Powering loudspeakers from an external source eliminates the need for wiring conduits while still preserving the advantages of self-powered systems.
The MPS-488HP receives eight channels of balanced audio from its XLR female input connectors and routes the audio, along with DC power, to its eight output connectors. Input channels feature toggle switches that route audio to corresponding outputs only, or to adjacent, contiguous outputs. For example, channel input 1 can be routed to channel outputs 1–2 and channel input 3 can be routed to channel outputs 3–4. Another example would be to route channel input 1 to channel outputs 1–4 and channel input 5 to channel outputs 5–8. All eight channel inputs can be routed in parallel to their corresponding channel outputs.
The MPS-488HP’s eight channel outputs are equipped with sophisticated microprocessor-controlled current limiting that protects each channel from short circuits and unexpected voltages. The channel outputs are available as either Phoenixâ„¢ 5-pin male connectors on the MPS-488HPP model, or SwitchCraft® EN3â„¢ 5-pin female connectors on the MPS-488HPE model. Outputs can deliver DC power to loudspeakers at cable lengths up to 150 feet or 300 feet (depending on the loudspeaker model) with just 1 dB of loss in peak SPL using 18 AWG wire. The use of composite multiconductor cables (such as Belden® 1502) allows a single cable to carry both audio and DC power from the MPS-488HP to the loudspeakers. Longer cable lengths are possible for moderate applications that don’t drive the loudspeakers to maximum output, as well as for installations with heavier wire gauges.
The power supply’s front panel has two LEDs per channel output that provide useful feedback on the status of the system. The blue voltage LEDs indicate when voltage is present for each channel output. The green load current LEDs indicate when a loudspeaker is connected to a channel output, glow brighter as the signal level increases, and flash when a short circuit is encountered.
FRONT PANEL
Eight LEDs to indicate output voltage
Eight LEDs to indicate load current
REAR PANEL
Audio Inputs Eight XLR 3-pin female connectors
Link switches to route inputs to outputs
Channel Outputs On MPS-488HPP model, eight Phoenix 5-pin male connectors
On MPS-488HPE model, eight EN3 5-pin male connectors
Output Voltage 48 V DC per channel
(with intelligent circuit protection against surges and shorts)
AC POWER
Safety Rated Voltage Range 100–240 V AC; 50–60 Hz
Current Draw with Eight MM-4XP Loudspeakers
Idle : 0.73 A rms (115 V AC); 0.60 A rms (230 V AC); 0.82 A rms (100 V AC)
Maximum Long-Term Continuous : 2.19 A rms (115 V AC); 0.99 A rms (230 V AC); 2.48 A rms (100 V AC)
Burst : 5.94 A rms (115 V AC); 2.98 A rms (230 V AC); 6.62 A rms (100 V AC)
Maximum Instantaneous Peak : 6.87 A peak (115 V AC); 5.32 A peak (230 V AC); 9.10 A peak (100 V AC)
Inrush : 20.0 A peak (115 V AC); 20.0 A peak (230 V AC); 20.0 A peak (100 V AC)
Current Draw with Eight UP-4XP Loudspeakers
Idle : 1.02 A rms (115 V AC); 0.68 A rms (230 V AC); 1.18 A rms (100 V AC)
Maximum Long-Term Continuous : 4.15 A rms (115 V AC); 2.03 A rms (230 V AC); 4.83 A rms (100 V AC)
Burst Current : 6.24 A rms (115 V AC); 2.32 A rms (230 V AC); 6.29 A rms (100 V AC)
Maximum Instantaneous Peak : 10.18 A peak (115 V AC); 5.46 A peak (230 V AC); 9.49 A peak (100 V AC)
Inrush : 20.0 A peak (115 V AC); 20.0 A peak (230 V AC); 20.0 A peak (100 V AC)
Current Draw with Eight HMS-10 Loudspeakers
Idle : 1.23 A rms (115 V AC); 0.74 A rms (230 V AC); 1.53 A rms (100 V AC)
Maximum Long-Term Continuous : 8.39 A rms (115 V AC); 4.44 A rms (230 V AC); 10.37 A rms (100 V AC)
Burst : 11.98 A rms (115 V AC); 6.87 A rms (230 V AC); 12.19 A rms (100 V AC)
Maximum Instantaneous Peak : 14.84 A peak (115 V AC); 10.59 A peak (230 V AC); 15.71 A peak (100 V AC)
Inrush : 20.0 A peak (115 V AC); 20.0 A peak (230 V AC); 20.0 A peak (100 V AC)
Current Draw with Eight MM-10XP Subwoofers
Idle : 0.74 A rms (115 V AC); 0.54 A rms (230 V AC); 0.81 A rms (100 V AC)
Maximum Long-Term Continuous : 3.08 A rms (115 V AC); 1.49 A rms (230 V AC); 3.46 A rms (100 V AC)
Burst : 5.48 A rms (115 V AC); 3.21 A rms (230 V AC); 5.57 A rms (100 V AC)
Maximum Instantaneous Peak : 9.56 A peak (115 V AC); 4.96 A peak (230 V AC); 10.28 A peak (100 V AC)
Inrush : 20.0 A peak (115 V AC); 20.0 A peak (230 V AC); 20.0 A peak (100 V AC)
