The self-powered DS-4P is an arrayable mid-bass loudspeaker system that provides high power sound reinforcement with extremely low distortion. It was developed to supplement the 70-200Hz band in full-range systems, affording additional mid-bass headroom. The DS-4P is most effective when used in multiples within an array, and easily can be incorporated into conventionally powered or self-powered systems. The DS-4P uses two 12-inch cone drivers in a true horn enclosure. The horn’s flare provides maximum energy transfer in the mid-bands with minimum frequency response ripple.
Like all Meyer self-powered loudspeaker systems, the DS-4P exhibits superior performance across virtually all parameters. Because the amplifier and control electronics are optimized for the drivers, the system is able to produce more power with a flatter response and lower distortion. The selfpowered concept simplifies installation, and eliminates amplifier racks and external drive processing. The DS-4P incorporates a two-channel Class AB/H power amplifier, Meyer Sound’s proprietary phase-corrected active processing circuits, and driver protection voltage limiters to ensure exceptional performance and reliability.
A laser-trimmed differential input stage affords superior common-mode rejection to allow signal runs through a simple twisted pair cable. Rear panel LEDs indicate AC power and driver protection limiting. The DS-4P’s integral power supply suppresses high voltage transients and incorporates the Intelligent ACTM system. This automates voltage selection, allowing worldwide operation, and additionally provides EMI filtering, soft current turn-on, and surge suppression. Installation of this unit is as simple as providing power and an audio signal source. Servicing in the field is facilitated by the modular design; the entire power amplifier module can be accessed and replaced, if necessary.
The rugged cabinet is coated with a textured black finish (carpet covering is an option) for durability and ease of handling. The DS-4P comes standard with six aircraft pan fittings (ring and stud), three on the top and three on the bottom of the enclosure. L-Track rigging can be fitted as an option. Also available is a variety of hanging and arraying hardware to create a complete system. The DS-4P easily integrates with the Remote Monitoring SystemTM (RMS) network and software application. Windows-based RMS displays signal and power levels, driver and cooling fan status, limiter activity, and amplifier temperature for all networked loudspeakers.
|Frequency Response||±4 dB from 70 Hz to 200 Hz|
|Phase Response||±70° from 70 Hz to 200 Hz|
|Maximum SPL||>142 dB SPL peak@1 meter|
|Dynamic Range||>120 dB|
|(-6 dB points)||120°H; 120°V|
|Low Frequency||(2) MS-12 12-inch cone drivers|
|Type||10kΩ impedance, electronically balanced|
|Connector||XLR (A-3) male and female|
|Nominal Input Level||+4 dBu|
|Type||Complementary power MOSFET output stages (audio class AB/H)|
|Burst Capability||1240 watts (620 watts/channel)3|
|THD, IM, TIM||<.02 %|
|Connector||250V NEMA L6-20P (twistlock) inlet or IEC 309 male inlet|
|Automatic Voltage Selection||95-125 VAC and 208-235 VAC; 50/60 Hz4|
|Operational Voltage Range||Turn on: 85 VAC; Turn off: 134 VAC; 50/60 Hz Turn on: 165 VAC; Turn off: 264 VAC; 50/60 Hz|
|Dimensions||Height: 36"; Width: 21.25"; Depth: 30"|
|Weight||163 lbs (74 kg); shipping: 187 lbs (85 kg)|
|Protective Grill||Perforated steel grill, charcoal-grey foam|
|Rigging||Six aircraft pan fittings (three on top and bottom). Working load for each fitting is 600 lbs (273 kg) based on a 5:1 safety factor with a straight tensile pull. Optional L-Track rigging system: Working load at vertical pull using any two points is 1500 lbs (682 kg) based on a 5:1 safety factor.|
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