UREI ELECTRONIC

PRODUCTS

FEATURES:

New Smart-Slope compression characteristics Both peak and/or average gain reduction User control of threshold, peak/average blend, attack and release times and compression ratio Simple set-up with Automatic Preset pushbutton Bright, easy to read displays Space saving single rack space size The JBL/UREI 7110 Limiter/Compressor is built in the tradition that has made UREI limiter/compressors the audio professionals choice world-wide. Incorporating both peak and average gain reduction detectors in a single rack space size, the Model 7110 is equally at home in the small recording studio, the sound contractor rack, portable sound systems, broadcasting s
studios or anywhere audio levels need to be automatically controlled. The 7110 offers new smooth sounding Smart-Slope compression ratios adjustable from 1.5:1 thru infinity: 1 and permits independent settings for limiting threshold, attack and release times, and output level. Additionally, the gain control action can be continuously varied between either peak or average detectors, giving the user a choice of either mode, or a mix of both, for versatility. Simple set-up is accomplished with a single Automatic Preset pushbutton that engages a program dependent variable attack and release circuit and fixes the compression ratio and
peak/average blend controls to critically accepted settings. A simple link function, selected from the front panel, is provided for multiple channel limiting. The JBL/UREI 7110 features an active balanced input with enough threshold range to provide full limiting action with input signals down to -20 dBm. Bright high resolution LED displays indicate gain reduction and either input or output levels. The output display zero reference is adjustable from -10 s dBm to f8 dBm. The unbalanced output is capable of + 22 dBm into 600 ohms; an optional output transformer accessory is available. The 7110 automatically b.ypasses itself, connecting the input directly to the output, when power is off.

SPECIFICATIONS

Input Input Impedance: Maximum Input Level: Gain: Frequency Response. Attack Time Average Detector: Peak Detector: Release Time: Average Detector Peak Detector Compression Ratio Threshold of Limitine Output: Maximum Output Level: Power Requirement: Controls, Pushbuttons and Indicators: 100 ms IO ms 5 s for 20 dB of release I-50 ms Less than 100 Ps Balanced brideine differential amplifier 20k ohms balanced input, IOk ohms unbalanced (with detector normalled to input) + 22 dBu (9.75 VRMS) dB, adjustable with front panel output level control 20 Hz to 20 kHz ? dB

Adjustable from

I to 30 I
Adiustable from - 40 dBu to + 10 dBu Unbalanced Balanced with optional transformer + 22 dBm into 600 ohm load loo-125 VAC 50/60 Hz, I5 W maximum 220-240 VAC 50 Hz available Variable controls for limiting threshold, peak/ average mix, attack time, release time, compression ratio, output level and output meter zero reference. Pushbuttons for multi-limiter linking, selection of Automatic Preset and selection of input or output level display. Separate sixteen segment displays for gain reduction and either input or output level

REAR PANEL VIEW

Connectors:
ARCHITECTS AND ENGINEERS SPECIFICATIONS:
The limiter/compressor shall provide both peak and average responding gain reduction on input signals as low as - 40 dBm. The limiter/compressor shall have two LED displays, one indicating gain reduction and the other switchable between input and output levels. The limiter/compressor shall have a frequency response of 20 Hz to 20 kHz kO.5 dB and accept a + 22 dBm input signal. The unit shall be capable of + 22 dBm output into 600 ohms, unbalanced. The limiter/compressor shall have separate controls for threshold, attack time, release time, compression ratio, output level and output display zero reference. Additionally, there shall be a pushbutton and barrier type connector for multilimiter linking. There shall be a control for blending the ratio of the peak and average limiting detectors and the average detector compression ratio shall be program s dependent. There shall be an automatic preset pushbutton that engages program dependent variable attack times and release times and sets the compression ratio and peak average detector blend controls to fixed settings.

Input and Output: Limiting Detector: Dimensions Finish:
Barrier strip, 6.3 mm P/a]phone jack and XL type 6.3 mm P/J phone jack normalled to input ) 483 mm W x 216 mm D x 44 mm H (I9 in W x 8% in D x I% in HI Polycarbonate overlay on extruded aluminum front panel. Extruded aluminum rack ears and steel chassis painted black. 3.4 ke (7.5 lbsl kg 110 Ibs) SC-6 Security Cover 16-14550 Output Transformer 0 dBu = VRMS OdBm= ImW
Weieht: Shipping Weight Accessories
The limiter/compressor shall have barrier, XL type and 6.3 mm f% in.) phone input and output connectors. The detector balanced input shall be a three s conductor 6.3 mm ( in.) phone jack, normalled through to the input barrier i strip. The limiter/compressor shall be packaged in a black painted steel chassis with a black painted aluminum front panel having a polycarbonate overlay. The unit shall have extruded aluminum rack ears for mounting in a standard EIA rack. It shall be possible to move the rack ears forward to allow the controls to be recessed or to allow a security cover to be mounted flush with the rack ears. The limiter/compressor shall be the JBLIUREI Model 7110 Limiter/Compressor
JBL ProfessIonal, 8500 Balboa Boulevard, P.0. Box 2200, NorthrIdge, Callforma 91329 U S.A.

10M 12/87