These speakers were purchased from a major park in Orlando Florida.Tested To Be In Great Working ConditionClose Serial NumbersSN-3217277SN-3217286Comes with 2 Optional U-BracketsOne was missing the U-bracket and front speaker cover so I purchased them from MeyersThe new U-Bracket is a newer model ($150.00) but works the same. Also comes with 2 PowerCon Power CablesDESCRIPTION The UPM-1P is a remarkably compact, self-powered professional sound reinforcement loudspeaker system. It is ideally suited to applications requiring a relatively small and inconspicuous loudspeaker that can also provide high sound pressure levels, extremely low distortion, and uniform directional control. The UPM-1P loudspeaker provides vocal range reinforcement as a small PA system, or as a fill or delay loudspeaker in larger indoor or outdoor systems. A full-range system can be created with the addition of an optional subwoofer.The UPM-1P high-frequency section comprises a 1-inch metal dome tweeter on a symmetrical constant-directivity high-frequency horn with 100-degree beam width. At lower frequencies, sophisticated phase correction circuitry assures true point source performance without the off-axis cancellation effects that plague customary dual-woofer designs. The two 5-inch low-frequency cone drivers are driven in parallel at low frequencies to take advantage of their combined acoustic output. To prevent destructive interference and comb filtering effects in the mid-band frequencies close to the crossover area, one of the drivers rolls off above 320 Hz.Two channels of power amplification are provided (350 watts total), along with an active crossover, driver protection voltage limiters, and frequency- and phase response alignment circuitry. A laser trimmed differential input stage affords superior common-mode rejection to allow long signal runs through shielded twisted pair cable. The standard UPM-1P is switchable between the 115 V AC and 230 V AC ranges. A 100 V AC version is also available. The UPM-1P’s integral power supply suppresses high-voltage transients, while two PowerCon AC connectors facilitate AC looping. The rugged cabinet is coated with a textured black finish. Mounting is via three 3/8"-16 or metric M10 threaded recessed nut plates. Optional U-bracket, yoke, and pole-mount hardware is available. The UPM-1P loudspeaker can be supplied with either the standard audio input module incorporating looping XLR connectors, or an alternate that adds attenuation and a polarity switch. The UPM-1P easily integrates with the RMS™ remote monitoring system network and software (optional). RMS displays signal and power levels, driver status, limiter activity, and amplifier temperature on a remote Windows® computer.FEATURES & BENEFITSExceptional fidelity and power capability in an ultra-compact packageWide, symmetrical pattern covers broad listening areasUnique crossover design eliminates combing for consistent midrange responseMetal dome driver delivers exceptionally smooth high-frequency characteristicAPPLICATIONSFront fill and under balconyTheatrical sound reinforcementPortable and installed audio-visual systemsCinema surround sound and effectsCompact voice reinforcement systemsUPM-1P SPECIFICATIONSAcousticalOperating Frequency Range: 75 Hz - 20 kHz Frequency Response: 80 Hz - 16 kHz ±4 dBPhase Response: 300 Hz - 18 kHz ±60°Maximum Peak SPL: 123 dBDynamic Range: >110 dBCoverageHorizontal: 100°Vertical: 100°Crossover1300 HzTransducersLow Frequency: Two 5" cone drivers Nominal impedance: 8 Ω Voice coil size: 1" Power-handling capability: 200 W (AES)TransducersHigh Frequency: One 1" metal dome tweeter Nominal impedance: 8 Ω Voice coil size: 1" Diaphragm size: 1" Power-handling capability: 20 W (AES)Audio Input:Type: Differential, electronically balancedMaximum Common Mode Range: ±15 V DC, clamped to earth for voltage transient protectionConnectors: Female XLR input with male XLR loop outputInput Impedance: 10 kΩ differential between pins 2 and 3Wiring: Pin 1: Chassis/earth through 220 kΩ, 1000 pF, 15 V clamp network to provide virtual ground lift at audio frequencies             Pin 2: Signal +             Pin 3: Signal - (optional polarity reversal switch)             Case: Earth ground and chassisDC Blocking: Differential DC blocking up to maximum common mode voltage CMRR: >50 dB, typically 80 dB (50 Hz – 500 Hz)RF Filter: Common mode: 425 kHz; Differential mode: 142 kHzTIM Filter: <80 kHz, integral to signal processingNominal Input Sensitivity: 0 dBV (1 V rms, 1.4 V pk) continuous average is typically the onset of limiting for pink noise and musicInput Level: Audio source must be capable of producing a minimum of +20 dBV (10 V rms, 14 V pk) into 600 Ω to produce maximum peak SPL over the operating bandwidth of the loudspeaker.AmplifiersType: Complementary MOSFET output stages (class AB/bridged)Output Power: 350 W totalTHD, IM, TIM: <.02 %Load Capacity: 4 Ω low channel, 8 Ω high channelCooling: ConvectionAC PowerConnector: PowerCon with looping outputVoltage Selection: External 115/230 V AC switch (100 V AC version available)Operating Voltage Ranges: 105 V AC - 130 V AC (115 V AC); 210 V AC - 260 V AC (230 V AC)Current Draw: Idle Current-0.13 A rms (115 V AC); 0.065 A rms (230 V AC); 0.15 A rms (100 V AC)Max Long-Term Continuous Current (>10 sec): 1 A rms (115 V AC); 0.5 A rms (230 V AC); 1.2 A rms (100 V AC)Burst Current (<1 sec): 1.3 A rms (115 V AC); 0.65 A rms (230 V AC); 1.5 A rms (100 V AC)Ultimate Short-Term Peak Current Draw: 2.9 A pk (115 V AC); 2 A pk (230 V AC); 3.3 A pk (100 V AC)Inrush Current: 18 A pk (115 V AC); 12 A pk (230 V AC); 15 A pk (100 V AC)RMS Network (Optional)Equipped for two-conductor twisted-pair network, reporting all amplifier operating parameters to system operator’s host computerI mostly use hard and soft foam to pack.

Some times bubble wrap depending on what it is.If you have any questions, I can be reached at 407-460-0688