Meyer Sound UPJunior Powered Loudspeaker

Meyer Sounds UPJunior ultracompact VariO loudspeaker brings the sonic signature, versatile rigging, and extraordinary power-to-size ratio of the UPJ-1P to a smaller package. The UPJunior combines the advantages of a self-powered system with the placement and arraying flexibility afforded by a VariO rotatable horn. Though remarkably compact and lightweight, the UPJunior delivers a robust peak power output of 126 dB SPL at 1 meter, making it suitable for use as either a single, primary loudspeaker or within multicabinet horizontal and vertical arrays. Applications include AV presentations; small- to medium-sized main sound reinforcement systems; fill, delay, and effects systems; under-balcony coverage; and distributed systems. The UPJunior was bred for flexibility whether oriented vertically or horizontally. The VariO horn allows quick rotation to provide an 80-degree by 50-degree coverage pattern in either the horizontal or vertical plane. In size, weight, and output, the UPJunior integrates seamlessly with the UltraSeries UPM and UPJ loudspeakers. The UPJuniors low-mid frequency section employs an 8-inch neodymium magnet cone driver, while the high-frequency section utilizes an efficient 0.75-inch exit, 2-inch diaphragm compression driver. Strategically placed metric M8 threaded points allow simple mounting using either eyebolts or third-party pole assemblies.

Features:

• Exceptional fidelity and extended high frequency performance
• Outstanding power capability in a compact package
• Predictable and consistent performance ensures system design flexibility
• VariO horn provides versatile coverage options, whether loudspeakers are oriented horizontally or vertically
• Extraordinarily flat amplitude and phase response for tonal accuracy and precise imaging
• Constant-Q horn affords uniform response throughout the coverage area
• With QuickFly rigging can be mounted or flown as either a single cabinet or within arrays

Specifications:

• Acoustical
  • Operating Frequency Range¹: 70 Hz – 20 kHz
  • Frequency Response²: 76 Hz – 18 kHz ±4 dB
  • Phase Response: 250 Hz – 18 kHz ±45°
  • Maximum Peak SPL³: 126 dB
  • Dynamic Range: >110 dB
  • Coverage⁴: 80° x 50°
• Coverage⁵
  • 3.5 kHz
• Transducers
  • Low Frequency:
    • One 8" cone driver with neodymium magne
    • Nominal impedance: 4 Ω
    • Voice coil size: 1.5"
    • Power handling capability: 300 W (AES)⁶
  • High Frequency⁷:
    • One 2" compression driver
    • Nominal impedance: 12 Ω
    • Voice coil size: 3"
    • Diaphragm size: 3"
    • Exit size: 0.75"
    • Power handling capability: 100 W (AES)⁶
• Audio Input
  • Type: Differential, electronically balanced
  • Maximum Common Mode Range: ±15 V DC, clamped to earth for voltage transient protection
  • Connectors: Female XLR input with male XLR loop output
  • Input Impedance: 10 kΩ differential between pins 2 and 3
  • Wiring:
    • 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)⁸
    • Case: Earth ground and chassis
  • DC 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 kHz
  • TIM Filter: <80 kHz, integral to signal processing
  • Nominal Input Sensitivity: 0 dBV (1.0 V rms, 1.4 V peak) continuous is typically the onset of limiting for noise and music
  • Input Level: Audio source must be capable of producing +20 dBV (10 V rms, 14 V peak) into 600 Ω in order to produce maximum peak SPL over the operating bandwidth of the loudspeaker
• Amplifier
  • Type: Two-channel complementary MOSFET output stages (class AB/bridged)
  • Output Power⁹: 300 W total
  • THD, IM, TIM: <.02%
  • Load Capacity: 4 Ω low channel, 12 Ω high channel
  • Cooling: Forced air cooling over amplifier heatsink
• AC Power
  • Connector: PowerCon with looping output
  • Voltage Selection: Automatic
  • Safety Agency Rated Operating Range: 100–240 V AC; 50/60 Hz
  • Turn-on and Turn-off Points¹⁰: 90–264 V AC; 50/60 HzC
  • Current Draw¹¹: Idle Current: 0.448 A rms (115 V AC); 0.285 A rms (230 V AC); 0.497 A rms (100 V AC)
  • Maximum Long-Term Continuous Current (>10 sec): 2.55 A rms (115 V AC); 1.55 A rms (230 V AC); 2.75 A rms (100 V AC)
  • Burst Current (<1 sec): 2.90 A rms (115 V AC); 1.70 A rms (230 V AC); 3.20 A rms (100 V AC)
  • Ultimate Short-Term Peak Current Draw: 12.0 A peak (115 V AC); 9.0 A peak (230 V AC); 13.0 A peak (100 V AC)
  • Inrush Current: 15.0 A peak (115 V AC); 13.0 A peak (230 V AC); 15.0 A peak (100 V AC)
• RMS Network (optional)
  • Equipped with two-conductor twisted-pair network, reporting all operating parameters of amplifiers to system operator’s host computer
• Physical
  • Dimensions: 9.00" w x 19.04" h x 10.20" d (228.60 mm x 483.55 mm x 259.08 mm))
  • Weight: 28 lbs (12.7 kg)
  • Enclosure: Premium birch plywood
  • Finish: Black textured
  • Protective Grille: Powder-coated hex-stamped steel, black mesh screen
  • Rigging: Aluminum end plates for mounting/flying cabinets with QuickFly® and standard rigging options; metric M8 threaded points used for all UPJunior rigging