UMA™ 4300

The Crest Audio UMA 4300 mixer amplifier provides installers and contractors a simple and efficient solution for a broad range of sound reinforcement, paging and background music applications in retail spaces, restaurants, lounges and waiting rooms.

The UMA 4300 combines a four-input mixer with a highly efficient Class D 300 Watts mono amplifier. Each of the four inputs can handle a variety of input signals, including microphone, balanced line level and mono or stereo unbalanced line sources. The UMA 4300 provides a simple paging solution with priority mute level sensing controls on input 1. Inputs 1 and 2 are electronically balanced and provide mic preamp gain controls and switched 48V phantom power for microphones. Inputs 3 and 4 support balanced and unbalanced line inputs with switch selectable Euro-style connectors or dual RCA inputs.

The UMA 4300 can drive directly a low impedance loudspeaker with its 4 Ohms direct output or 25V, 70V or 100V constant voltage loudspeaker circuit.

The UMA 4300 is housed in a 2U rack mount chassis and has a voltage selector switch for 120V or 240VAC operation.

• 300 Watts Class D power amplifier

• SPS speaker protection system

• High-pass filter to protect speaker transformers from low frequency overload

• 2U rack-mount chassis

• Four input level controls with signal/clip/mute LEDs

• Power, signal and SPS indication LEDs

• Master volume

• Four electronically balanced Mic/Line inputs

• Inputs 1 and 2 are electronically balanced with Euro connectors and preamp gain control

• Inputs 1 and 2 have phantom power with switch

• Inputs 3 and 4 have switch to select balanced Euro connector or dual RCA connectors

• Inputs 3 and 4 have rear panel preamp gain controls

• Input 1 Level sensing muting of inputs 2-4 with threshold/defeat control

• Balanced output with level control

• Switchable Mix output or input 4 Direct output

• Output is not affected by mute or channel level if channel 4 is selected

• Preamp output, power amp input for inserting processing with Bypass switch

• 4 Ω, 25V, 70V and 100V outputs

• Bass and Treble controls

• Power switch

• Line voltage switch for 120V or 240VAC operation

Banquet Halls

Casinos

Auditoriums

Houses of Worship

Educational Facilities

Convention Centres

Corporate Environments

Restaurant

Bars

Channels (Input)	4
Channels (Output)	1
Power per Channel @ 70V	300 W
Power per Channel @ 100V	300 W
Topology	Class D
Minimum Load Impedance	4 Ω
Frequency Response	‘-3 dB, 65 Hz – 20 kHz; +0
Phantom Power	Yes (48V)
Mute Groups	Priority / Mute All
Input Connectors	4 x 3-pin Euro Connector & 2 x Dual RCA
Output Connectors	1 x 5-pin Srew Terminal
Net Weight	15.4 lbs (7.00 kg)
Product Height	3.45″ (88 mm)
Product Width	19.00″ (483 mm)
Product Depth	13.25″ (337 mm)
AC Power Input	Dual Voltage – 120 or 220-240VAC 50/60 Hz
SKU	3616040