Peavey SSE UB2T User Manual

SPECIFICATIONS

SSE™ UB2T

Under Balcony Array

Description

Designed for permanent professional installation in schools, churches, theaters, auditoriums, gyms, night clubs, offices and theme parks, the SSE UB2T is a quarterspherical coverage array providing mid/ high frequency coverage of an entire small room, or under a balcony or other barrier spot/delay coverage

Constructed of premium plywood for strength, rigidity and light weight, the SSE

Features

• Uniquely angled speakers provide wide, even response

• Dual-orientation design for more defined coverage

• Built-in 70V/100V transformer

• Switch selected taps at 30W, 15W, 7.5W,

3.7W, 1.8W and 8 ohms

UB2T has a perforated metal grille covered with

cloth for a subtle appearance. Builtin hanging points provide flexibility in coverage adjustment.

This mid/high frequency quarter-spherical array is comprised of four 2” neodymium speakers, with wide dispersion and a very smooth response across their operating band. When mated with a companion woofer module, this combination provides

• 180º by 90º pattern covers a small room or space

• Designed for placement at the ceiling/ wall junction or under-balcony locations

• Whole-room mid/high frequency coverage from one enclosure

stability and

a clear, smooth full-range sound from a hung system. Input to the array is via barrier strip screw terminals. A built-in 70V/100V transformer with switchselectable taps and an 8-ohm input option provide maximum flexibility for installations. A separately available active crossover with equalization assures smooth, even frequency response across the operating band.

• Small size makes it unobtrusive

• Processor-based crossover and EQ for maximum performance

• Hanging points incorporated

• Available in black and white painted finishes

Frequency Response, 1 meter onaxis, swept-sine in one-fourth space environment:

8 Ohm Input: 160 Hz to 16 kHz (±3 dB with processing) Transformer Input

3 dB with processing)

: 200 Hz to 16 kHz (+/-

Usable Low Frequency Limit (-10 dB point one fourth space):

8 Ohm Input: 110 Hz (with processing) Transformer Input: 180 Hz (with processing and crossover)

Power Handling (above 200 Hz):

8 Ohm Input: 50W continuous 100W program 200W peak Transformer 30W continuous Input: 60W peak

Sound Pressure Level, 1 watt, 1 meter in anechoic environment:

8 Ohm Input: 90 dB SPL, (2.83 V input)

Maximum Sound Pressure Level (1meter):

8 Ohm Input: 107 dB SPL continuous 113 dB SPL peak Transformer 103 dB SPL continuous Input, 30W tap: 106 dB SPL peak

Radiation Angle measured at -6 dB point of polar response:

Operating Into Quarter Space: Horizontal Dispersion: 180 Vertical Dispersion: 90 Operating Into Half Space: Horizontal Dispersion: 180 Vertical Dispersion: 110

Directivity Factor, Ro (Q), 500 Hz – 16 kHz Mean:

Unit has textbook-perfect dispersion of Q = 4 for one-fourth space environment (180 90

º ) For one-half space environment (180 Q= 3.1 +1.0/-1.1

º X

º X 180º),

Directivity Index, Di 500 Hz – 16 kHz Mean:

Unit has textbook-perfect dispersion of Di = 6 dB for one-fourth space environment (180 X 90

º ) For one-half space environment (180 Di=4.8 dB, +1.2dB/-1.8 dB

º X 180º),

Transducer Complement:

Four wide-band neodymium 2” speakers with 1” voice coil

Harmonic Distortion:

8 Ohm In: 1% rated power (or 1W) 2nd Harmonic: 200 Hz: 0.51% 1 kHz:0.1% 3rd Harmonic: 200 Hz: .42% 1 kHz: 0.1% 10% rated power 2nd Harmonic: 200 Hz: 0.91% 1 kHz: 0.1% 3rd Harmonic: 200 Hz: 2.12% 1 kHz: 0.32% Transformer Input power of 30W and above 200 Hz, typically less than 1%

: Less than 3% up to rated

Recommended Active Crossover Frequency Region and Slope:

Low Frequency - High Frequency: 200 Hz at 24 dB/octave

Impedance (Z):

8 Ohm Input: Nominal: 8W Minimum: 7.2W

Input Connections:

Barrier strip screw terminals

Input Selection Switch:

Selects between 30W, 15W, 7.5W, 3.7W, 1.8W or 8 Ohms Input NOTE: 30W tap is for 70V input use ONLY! 100V input uses next tap down, e.g., with 100V input, use the 15W tap for 30W output, the 7.5W tap for 15W output, etc. Use of the nominally 70V 30W tap on 100V will exceed the transformer and system power rating, and will result in failure of the speaker system.

Enclosure Materials & Finish:

Premium plywood finished in black or white paint

Mounting Provisions:

Flying point for suspension, bracket included.

Overall Dimensions (H x W x D):

3.23" x 13.78" x 6.12" 82 mm x 350 mm x 155 mm

Net Weight:

5 lbs. (2.3 kg)

Frequency Response

This measurement is useful in determining how accurately a given unit reproduces an input signal. The frequency response of

™

the SSE of 1 meter using a 1 watt (into the nominal impedance) swept-sine input signal. As shown in figure 1, the selected drivers in the SSE UB2T combine with the signal processing to give a smooth frequency response from 160 Hz to 16 kHz .

UB2T is measured at a distance

Directivity

Beamwidth is derived from the -6 dB points from the polar plots (see figure 3) which are measured in a whole-space anechoic environment. Q and Directivity Index are plotted for the on-axis measurement position. These are specifications that provide a reference to the coverage characteristics of the unit. These parameters provide insight for proper placement and installation in the chosen environment. The blending of the components of the SSE UB2T exhibits a desirable beamwidth and directivity (figure 3 & 4) suitable for permanent installation applications.

Power Handling

There are many different approaches to power handling ratings. Peavey rates this loudspeaker system’s power handling using a full-range form of the AES Standard 2-1984. Using audio band 20 Hz to 20 kHz pink noise with peaks of four times the RMS level, this strenuous test signal assures the user that every portion of this system can withstand today’s high technology music. This rating is contingent upon having a minimum of 3 dB of amplifier headroom available.

Harmonic Distortion

Second and third harmonic distortions vs. frequency for the 8-ohm input are plotted in figures 5 & 6 for two power levels. Ten percent (10%) of rated input power and either one percent (1%) of rated input power or one watt, whichever is greater. Distortion is read from the graph as the difference between the fundamental signal (frequency response) and the desired harmonic. As an example, a distortion curve that is down 40 dB from the fundamental is equivalent to 1% distortion.

Mounting

Caution: Before attempting to suspend this speaker, consult a certified structural engineer. Speaker can fall if improperly

suspended, resulting in serious injury and

20 50 100 200 500 1k 2k 5k 10k 20k

Frequency (Hz)

100

110

dB SPL (re 20 Pa)

Amplitude Response (1m Equivalent On-Axis)

W/ woofer

SSE- UB2

HF Only vs System

Figure 1

20 50 100 200 500 1k 2k 5k 10k 20k

Frequency (Hz)

100

Impedance

( )

Figure 2

20 50 100 200 500 1k 2k 5k 10k 20k

Frequency (Hz)

100

140

180

300

360

Beamwidth (Degrees)

Beamwidth

Vertical

Horizontal

Figure 3

property damage. DO NOT suspend or mount any other product or device from this enclosure. Use only the correct mating hardware. All associated rigging is the responsibility of others. This unit was designed to be hung on the wall or ceiling with the use of a special bracket that fits into the enclosure, via a slot on the rear, and an insert located on the top rear of the cabinet. Use only the supplied bracket.

Architectural & Engineering Specifications

The loudspeaker system shall have an operating bandwidth of 160 Hz to 16 kHz with signal processing, using the 8 ohm input. The nominal output level shall be 90 dB when measured at a distance of one meter with an input of one watt into the 8 ohm input, where the nominal impedance shall be 8 ohms. A 70V/100V distributed line transformer shall be included, with a selector switch to select between transformer taps of: 30W, 15W, 7.5W, 3.7W,

1.8W or to an 8 ohm nominal input. The maximum continuous power handling shall be 50 watts, maximum program power of 100 watts and a peak power input of at least 200 watts, with a minimum amplifier headroom of 3 dB, for the 8 ohm input. The transformer input maximum continuous power handling shall be 30W, with a maximum peak power of 60W, for either a 100V or 70V input line. The nominal radiation geometry shall be 180 degrees in the horizontal plane and 90 degrees in the vertical plane. The overall outside dimensions shall be 3.23 inches high by

13.78 inches wide by 6.12 inches deep. The weight shall be 5 pounds. The mounting/ flying bracket shall be included with the unit. The loudspeaker system shall be a Peavey Sanctuary Series model SSE

UB2T.

3 + 2 YEAR LIMITED WARRANTY

NOTE: For details, refer to the warranty statement. Copies of this statement may be obtained by contacting Peavey Electronics Corporation, P.O. Box 2898, Meridian, Mississippi, 39301-2898.

SPECIFICATIONS

SSE™ UB2T

20 50 100 200 500 1k 2k 5k 10k 20k

Frequency (Hz)

100

Q & Directivity Index

Figure 4

20 50 100 200 500 1k 2k 5k 10k 20k

Frequency (Hz)

100

dB SPL (re 20 Pa)

Harmonic Distortion : 1% Rated Power

Figure 5

3rd Harmonic

2nd Harmonic

20 50 100 200 500 1k 2k 5k 10k 20k

Frequency (Hz)

100

120

dB SPL (re 20 Pa)

Harmonic Distortion : 10% Rated Power

Figure 6

3rd Harmonic

2nd Harmonic

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