Meyer Sound UPM-2 User's Manual
Contents
1. Features Ultra compact Lightweight Efficient high power Versatile UltraSeries Uncompromised quality a Reinforcement Controlled coverage Loudspeaker Long term reliability Applications Delayed fill in installations Music playback in small clubs Multi channel AV playback Cinema surround channels Stage monitoring Paging and announcing i T g Inches Designed for sound reinforcement driver and high Q constant directivity applications requiring minimum size the horn with passive crossover UPM 2 delivers high sound pressure levels The rugged cabinet is easily handled with low distortion and highly controlled and installed It has three 16 threaded coverage in both axes rigging points and may be mounted on a Suitable for a wide range of applications stand An optional steel bracket facilitates from music playback and delay fill systems mounting in permanent installations to stage monitoring the UPM 2 features The UPM 2 system requires a high outstanding low frequency performancein quality professional power amplifier an unusually compact package Its ultra capable of delivering 125 watts continu flat frequency response simplifies room ously into 16 ohms with a signal voltage equalization requirements and ensures gain of 10 dB minimum to 30 dB high gain before feedback maximum The loudspeaker consists of two 5 inch low frequency cone drivers in2. at the balanced output loaded with 10kQ shall be less than 1 at 1kHz The A weighted noise level shall be at least 105 dB 04 030 006 01 A UPM 2P 2 below maximum rated output of 26 dBu The speaker system combined with a 125W 16 ohm rating amplifier shall meet the following performance criteria Frequency response 60 Hz to 20 kHz plus or minus 4 dB measured in half space at 1 meter on axis with octave pink noise output of 108 dB SPL measured at 1 meter on axis with peaks of 118 dB SPL when driven with A weighted noise High frequency distribution pattern 45 degrees horizontal by 45 degrees vertical Speaker enclosure dimensions shall be 6374 W x 18 H x 71 D weight 16 Ibs 7 3 kg Control Electronics Unit dimensions shall be 19 W x 174 H x 77 D weight 7 bs 3 2 kg The speaker enclosure shall be the Meyer Sound UPM 2 The Control Electronics Unit shall be the Meyer Sound P 2 Uji Meyer li Sound Meyer Sound Laboratories has devoted itself to designing manufacturing and refining com ponents that deliver superb sonic reproduction Every part of every component is designed and built to exacting specifications and undergoes rigorous comprehen sive testing in the laboratories Research remains an integral driving force behind all produc tion Meyer strives for sound quality that is predictable and neutral over an extended lifetime and across an extended range Sound
3. engineering for the art and science of sound Meyer Sound Laboratories Inc 2832 San Pablo Avenue Berkeley CA 94702 510 486 1166 FAX 510 486 8356
4. a vented Meyer Sound Laboratories Inc enclosure and a proprietary titanium dome 2832 San Pablo Avenue U ji U S patent no 4 152 552 high frequency fz Meyer Berkeley ca 94702 M Sound FAX 510 486 8356 MEYER SOUND UPM 2 Specifications Acoustical UPM 2 P 2 Frequency Response Half space 60 20 000 Hz 4 dB Free air 70 20 000 Hz 4 dB Maximum SPL Continuous 108 dB Peak 118 dB HF Distribution Pattern 6dB points Horizontal 45 degrees Vertical 45 degrees UPM 2 Loudspeaker Driver Complement Low Frequency 2 MS 5 5 inch cone drivers 8 ohms per driver High Frequency 1 titanium dome horn driver 8 ohms Passive Network Function 3 way crossover and HF driver protection Capacitor Type Polypropylene Inductor Type Ferrite core Nominal Impedance 16 ohms Enclosure 0 2 cu ft vented multi ply Finnish birch Finish Black textured Connector EP 4 EP 5 Europe only or 3 pin XLR male and female Protective Grill Expanded metal screen frame vinyl damped charcoal grey foam covering Mounting Points 3 16 nut plates Physical Dimensions 634 W x 1846 H x 74 D Weight 16 Ibs 7 3 kg P 2 Control Electronics Unit Input Type Balanced active 47k ohms Output Type Push pull active 200 ohms source impedance Maximum Input Outpu
5. ensions drivers and limits the signal output when the safe operating limits of the drivers are exceeded Until the onset of overload the SpeakerSense circuitry has no effect on the signal Six stages of Meyer s exclusive comple mentary phase equalization in the P 2 Control Electronics Unit give the UPM 2 flat frequency response with outstanding phase characteristics A single channel device operating at line level the P 2 is the final component in the signal chain before the amplifier MEYER SOUND 1995 Meyer Sound Architectural and Engineering Specifications The ultra compact high power rein forcement speaker system shall be a passive 3 way type with two 5 inch low frequency loudspeakers front mounted in a ducted bass reflex hardwood plywood enclosure with a 45 high frequency waveguide and titanium dome driver The enclosure shall be fitted with three s 16 threaded mounting points and shall operate with a separate Control Electronics Unit The Control Electronics Unit shall con tain a power supply capable of operating from a 120 240V AC 50 60 Hz line equal ization circuitry for amplitude and phase alignment protection circuitry which automatically activates under high power conditions RMS limiter which protects the speakers from overheating active bal anced input active push pull output and LED indicators for power on and limiters Total harmonic distortion at 26 dBu
6. t Level Unbalanced gt 20 dBu Balanced gt 26 dBu Hum and Noise lt 90 dBV Dynamic Range gt 105 dB Sense Input 10K ohms true differential Driver Protection Circuitry Low Frequency RMS Limiter High Frequency RMS and Peak Limiter Indicators Sense Green LED Limit Red LED Power Green LED Controls Level control AC on off switch Lo Cut switch Connectors Balanced Input Output 3 pin XLR A 3 Sense Input Banana jacks Power 120 240V AC 50 60 Hz internally switchable Physical Dimensions 19 W x 1 H x 754 D Standard rack mount Weight 7 Ibs 3 2 kg Note 1 Measured 1 meter on axis pink noise input in third octave ISO bands Note 2 A weighted noise input loudspeaker driven by 125watt 16 ohm rating mono amplifier Note 3 1 kHz 10k Q load lt 0 1 THD Note 4 A weighted Note 5 Noise floor to maximum output The P 2 Control Electronics Unit The UPM 2 operates as a system with the P 2 Control Electronics Unit Optimized for the UPM 2 and pre aligned at the factory the P 2 contains frequency response and phase response alignment circuitry and Meyer Sound s exclusive SpeakerSense driver protection circuitry incorporating both peak and RMS signal limiting SpeakerSense protects the UPM 2 loudspeaker components from damage due to overheating under high power condi tions This unique circuit continuously monitors the power applied to the UPM 2 UPM 2 Physical Dim
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