Peavey UMA 1502 User Manual

Specifications UMA™ 1502 MIXER/AMPLIFIER

Specifications

Rated output power: 150 Watts
Output regulation:
Direct out:	<0.5 dB
Transformer out:	<1.0 dB
Frequency response:
Power Amplifier:	±0.5 dB, 20 Hz to 20 kHz,
	direct out
	±1.0 dB, 50 Hz to 20 kHz,
	transformer out
Preamplifier:	±1.0 dB, 20 Hz to 20 kHz
THD:
Power Amplifier:	0.05% (1 kHz)
Preamplifier:	0.10% with nominal gain
	settings
Power bandwidth:
Direct out:	<10 Hz to 70 kHz
Transformer out:	30 Hz to 40 kHz

Signal/noise:
(22 Hz — 22 kHz) typical
All controls CCW:		-100 dB
All controls nominal (5):		-90 dB
Level controls CCW and master level CW:
		-80 dB
Outputs:
Direct out:	4 Ohms (25 V)
XFMR:	Balanced 8 Ohms,
	70 V, 100 V
Ch. 4 out:	1 V nom., +21 dBu max.
	at 100 Ohms

Pre out:	1 V nom.; +21 dBu max.,
	at 100 Ohms
Inputs:
Channel 1:	Mic 1 mV at 1.8 k Ohms
	(XLR or screw terminals)
	Tel 100 mV at 20 k Ohms
	(Screw terminals)
Channel 2:	Mic 1 mV at 1.8 k Ohms
	(Screw terminals)
	Line 100 mV
	at 20 k Ohms
	(Screw terminals)
Channel 3:	Line 100 mV
	at 20 k Ohms
	(Screw terminals)
Channel 4:	Line 100 mV
	at 20 k Ohms
	(Screw terminals)
	Stereo 316 mV
	(-10 dBV) at
	4.0 k Ohms
	(RCA jacks)
Power in:	1 Volt at 20 k Ohms
Tone controls:
Bass:	±10 dB at 100 Hz
Treble:	±10 dB at 10 kHz

Front panel controls and indicators: Channel 1 level control

Channel 2 level control Channel 3 level control Channel 4 level control Bass control

Treble control

Specifications UMA™ 1502 MIXER/AMPLIFIER

Master level control

Input channel signal level indicators: (signal presence = green; signal peak = red)

Input channel mute status Power amplifier signal presence indicator

SPS™ indicator Power on indicator

Rear panel controls:

Module input level control use with MMA input modules only

Channel 1 sensitivity switch Channel 1 mute bus assign switch Mute 2 threshold control Channel 2 sensitivity switch Channel 2 mute bus assign switch Channel 4 output level control Loop switch

Power switch

Muting:

Mute 1: MMA input module overrides Ch 1 through 4

Mute 2: Ch 1 overrides Ch 2 through 4 with adjustable threshold control range from OFF to 100 mV (TEL) or 1 mV (MIC)

Other features:

Remote volume control (RVC) via screw terminals

•10 k Ohms approximately 30 dB attenuation

•100 k Ohms approximately 60 dB attenuation

Mute 1 and mute 2 bus activation with switch contact closure via screw terminals

24 V DC phantom power on MIC inputs

Power requirements:

300 Watts, 120 V AC, 60 Hz

Dimensions (all models):

19" x 13.25" x 3.45" with rack ears (483 mm x 337 mm x 88 mm)

17" x 13.25" x 3.45" without rack ears (432 mm x 337 mm x 88 mm)

Weight:

27.1 lbs. (12 kg)

Color:

Black

Features

•Up to five input channels

•One electronically balanced Mic/Tel input – telephone input with 600 Ohm transformer balanced for paging

•One electronically balanced Mic/Line input

•Two electronically balanced Line inputs

•One plug-in module port allows for any single-space MMA™ module

•Rear-panel input level control for optional MMA input module

•Priority/Muting system with internal signal override, external switch closure capability, threshold control, and front panel indicators

•Mute Bus Active/Defeat switches on two channels

•Remote volume control capability

•Bass and treble equalization controls

•Preamp output and power amp input loop for external processing equipment or auxiliary output

•Channel 4 electronically balanced output provides non-mutable output for MOH

•Front panel channel input signal level indicators

•Amplifier signal indicator

•SPS™ (Speaker Protection System) circuitry with indicator

•Power indicator

•4 Ohm direct output

•8 Ohm, 70 Volt, and 100 Volt transformer-balanced power outputs

•AC convenience outlet (120 V units only)

•Optional rack mounting with included

rack ears

Applications

•Presentation rooms

•Board rooms

•Courtrooms

•Auditoriums

•Lecture halls

•Meeting rooms

•Convention centers

•Paging systems

•Background music

•Retail spaces

•Restaurants

Description

The UMA 1502 are high quality, commercial grade analog audio mixer/amplifiers. Designed for flexibility in application, these mixer/amps represent the latest, state-of-the-art technology in analog circuit design.

Powerful, yet easy to use, the new UMA 1502 delivers amazing sonic performance. Low-noise design and features applicable to “real-world” situations makes this unit ideal for audio applications where a compact, powered mixer with multiple input and output capabilities are required.

Architectural and Engineering

Specifications

The mixer/amplifier shall have 4-inputs and an accessory module port for use with present and future Peavey MMA modules. The front panel shall include four input level controls, bass and treble controls, and a master output control. Front panel indicators shall include power, signal presence at the amplifier, channel signal and mute condition, and SPS™. The mixer amplifier shall have a hierarchical muting function where the input module has the highest priority followed by Channel 1. Outputs shall include one direct and three transformer-balanced. The power switch shall be on the rear panel along with the detachable IEC cord, fuse holder, and accessory power outlet (120 V only).

There shall be four inputs with Euro-type connectors on the rear panel and level controls on the front panel. Channel 1 shall also include an XLR connector and have a bridging transformer input with switchable input sensitivity between telephone paging and microphone. When in the microphone mode, 24 Volt phantom power shall be applied to the Input 1. Channel 2 shall be electronically balanced with a switchable input sensitivity between mic and line levels. When in the microphone mode, 24 Volt phantom power shall be applied to the Input 2. Channels 3 and 4 shall be electronically balanced line-level inputs with Channel 4 including stereo RCA jacks. Additionally, the output from Channel 4 input shall be made available via an electronically balanced output with a Eurotype connector and a separate level control. The module port shall be capable of controlling both mute buses. Depending upon the module chosen, it can be set up for master configuration. When the input signal to an input module commands a mute function, Channels 1-4 shall be muted.

Only Channel 1 shall have a continuously variable mute threshold control on the rear panel. Setting this control fully clockwise shall defeat the Channel 1 mute function. The mute level threshold for Channel 1 shall be increased as the control is turned clockwise. When the signal level in Channel 1 exceeds the mute threshold, Channels 2-4 shall be muted. Channels 1 and 2 shall include a switch to defeat its muting function. When the switch is out, the channel shall be muted. When the switch is in, the channel cannot be muted.