Electro-Voice EQ-231 user manual

Summary of the content on the page No. 1

EQ-231
Stereo One-Third Octave
Graphic Equalizer
• 31 1/3-octave filters on each
channel for effective sound
system equalization
• Switchable infrasonic filter and
ground-lift
• Selectable (6 or 12 dB) range of
boost/cut
• Active-balanced 3-pin XLR-type
and TRS 1/4-inch inputs
• Two rack space chassis with
internal power supply with IEC
connector
adjacent peak LED rarely or never lights. This
Description Architects’ and
will help achieve maximum possible signal-
Engineers’ Specifications
The Ele

Summary of the content on the page No. 2

EQ-231/Graphic Equalizer The equalizer shall meet or exceed the fol- statement(s) below, or in the individual prod- or FAX 616/695-4743). Incidental and lowing performance specifications: fre- uct data sheet or owner’s manual, beginning Consequential Damages Excluded: Prod- quency response at unity gain, …1 dB 20 - with the date of original purchase. If such uct repair or replacement and return to the 20,000 Hz; total harmonic distortion less than malfunction occurs during the specified pe- cus

Summary of the content on the page No. 3

EQ-231/Graphic Equalizer EQ-231/Graphic Equalizer FIGURE 3 — High-Pass Filter FIGURE 4 — Frequency Response, +6- Response, Upper Trace Lo-Cut Off, dB Gain Position(high-pass filter off) Lower Trace Lo-Cut On FIGURE 5— Front and Back Panel Details 3 OUTPUT IN dB OUTPUT IN dB

Summary of the content on the page No. 4

EQ-231/Graphic Equalizer Supplied Accessories: General Specifications Output Specifications Power cord; one package of mounting Conditions: Type: screws; one package of rubber feet; one decal and fuse for 230-V ac operation; Electronically balanced XLR-type; 1. 0 dBu = 0.775 volts rms. 1 owner’s manual and service information unbalanced / -inch 2. 120 volt ac line input voltage 4 Operating Environment: Impedance, maintained for all tests unless noted. Up to 50° C (122° F) Balanced: 3. 0 dBm = 1