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Wharfedale EQ-31 Graphic Equalizer
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The EQ-31 allows you to equalize with a new level of precision and may be the most transparent and accurate equalizer available. The EQ-31 Equalizer can be used in a variety of setups including: mixing consoles, fixed installation, in the effects loop of an amplifier, and in the tape loop of a home receiver. Self contained in an all steel two high 19 rack mount case, this equalizer is designed for continuous professional use.
- Single Channel 31 Band Graphic Equalizers
- Balanced XLR and 1/4" TRS input and output
- Hardwire bypass switch with LED indicator
- Quiet power-up and power-down modes
- Ultra-low noise and distortion
- 45mm High Resolution faders
- Selectable +/- 15dB or +/- 7.5dB cut/boost range with LED indicator
- Input signal level and peak LED meter
- Constant Q filtering
- Switching subsonic and ultrasonic filter
- A selectable 40Hz /20Hz low-cut filter (18dB Octave)
- A selectable16kHz /20kHz high-cut filter (18dB Octave)
| MODEL | EQ-31 |
| INPUT IMPEDANCE | 10k ohm (balanced) |
| SIGNAL TO NOISE RATIO | 115dB |
| FREQUENCY RESPONSE | 10Hz~30kHz, +0 / -5dB |
| MAXIMUM INPUT LEVEL | +24dBm |
| MAXIMUM OUTPUT LEVEL | |
| BALANCED 600 OHM | +23dBm |
| BALANCED NO LOAD | +27dBm |
| UNDBALANCED | +23dBm |
| TOTAL HARMONIC DISTORTION (THD) | <0.005%, 20Hz~20kHz, +15 dBm |
| FILTERS | |
| FREQUENCY CENTERS (HZ) | 20, 25, 31.5, 40, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1k, 1.25k, 1.6k, 2k, 2.5k, 3.15k, 4k, 5k, 6.3k, 8k, 10k, 12.5k, 16k, 20k. |
| BOOST/CUT | ±15dB |
| LEVEL CONTROL | ±7.5dB |
| HIGH CUT | 16kHz 20kHz (18 dB/Octave) |
| LOW CUT | 20Hz 40Hz (18 dB/Octave) |
| OUTPUT IMPEDANCE | 100 ohm (balanced) |
| INDICATION | |
| POWER | Red (ON) |
| CHANNEL 1,2 ACTIVE | Red (ON) |
| CHANNEL 1,2 SIGNAL PRESENT/CLIP | Green/Red (Red=Clipping) |
| SIGNAL PRESENT LEVEL | -35dBm |
| SIGNAL CLIP LEVEL | +16dBm |
| POWER REQUIREMENTS |
105-125 Volts AC, 50-60 Hz, 140mA @ 116VAC, 16.3 Watts (FUSE: 315mA) 210-250 Volts AC, 50-60 Hz, 70mA @ 232VAC, 16.3 Watts (FUSE: 630 mA) |
| CONNECTIONS |
1/4 INCH (TRS) [ Balanced] (Tip Hot, (+)), (Ring (-)) Balanced XLR (Pin 3 Hot, (+)), (Ping 2 (-)) |
| DYNAMIC RANGE | 118 dB |
| EQUIVALENT INPUT NOISE | -95 dB |
| DIMENSIONS & WEIGHT | |
| HEIGHT ( MM / INS ) | 3.5 inches (88.9mm) |
| WIDTH FRONT / REAR / MM / INS | 19 inches (482mm) |
| DEPTH ( MM / INS ) | 6.25 inches (159mm) |
| NET WEIGHT ( KG / LBS ) | 10 lbs (4.5 kg) |
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