Runfeng Audio Equalizer Model 2231

Prod Model:	EQ 2231
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Function:	Pre-amplifier
Usage:	KTV System
Voltage:	AC 220V
Element Number:	Monoamplifier
Output Number:	4
Used For:	Professional
Conductive Mode:	AB
Tube Type:	Transistor Amplifier
Sound Channel:	2.1

Product Description

Band width : 20Hz-20Hz +0.5 dB/-1dB Dynamic range :> 109dB, 115dB SNR : 90dB, 97dB Total Harmonic Distortion + Noise: < 0.005% Crosstalk between channels : <-80dB, 20Hz-20KHz Interfaces: 1 /4 inch TRS, XLR sockets ( pin 2 hot positive side , female ) and the terminal strip Type: Electronic balanced / unbalanced , RF filtered Impedance: 40K balance in Europe, the imbalance is 20K Euro Maximum input level :> +21 dBu, balanced or unbalanced Total Streamer system than :> 40dB, typical > 55dB, 1KHz Interfaces: 1 /4 inch TRS, male , XLR socket ( pin 2 hot positive side , female ) and the terminal strip Type: impedance balanced / unbalanced , RF filtered Impedance : Balanced 200 Ohms ; 100 ohms unbalanced Maximum Output Level :> +21 dBu, balanced / unbalanced 2K ohm load or greater CMRR : 18dB, balanced / unbalanced ( 60 ohm load connected ) 2231 Specifications Input Connectors 1/4" TRS, female XLR (pin 2 hot), and barrier terminal strip Input Type Electronically balanced/unbalanced, RF filtered Input Impedance Balanced 40 kOhm, unbalanced 20 kOhm Max Input >+21dBu balanced or unbalanced CMRR >40dB, typically >55dB at 1kHz Output Connectors 1/4" TRS, male XLR (pin 2 hot), and barrier terminal strip Output Type Impedance-balanced/unbalanced, RF filtered Output Impedance Balanced 200 ohm, unbalanced 100 ohm Max Output >+21dBu balanced/unbalanced into 2 kOhm or greater; >+18dBm balanced/unbalanced (into 600 ohm) Bandwidth 20Hz to 20kHz, +/-0.5dB Frequency Response <10Hz to >50kHz, +0.5/-3dB Signal-to-Noise (NR In: +/-6 and +/-15dB ranges) >102dB, unweighted, ref: +4dBu, 22kHz measurement bandwidth Dynamic Range (NR In: +/-6dB and +/-15dB ranges) >120dB, unweighted Signal-to-Noise (NR Out: +/-6dB range) >94dB, unweighted, ref: +4dBu, 22kHz measurment bandwidth Dynamic Range (NR Out: +/-6dB range) >112dB, unweighted Signal-to-Noise (NR Out: +/-15dB range) >90dB, unweighted, ref: +4dBu, 22kHz measurement bandwidth Dynamic Range (NR Out: +/-15dB range) >108dB, unweighted THD+Noise <0.04%, 0.02% typical at +4dBu, 1kHz Interchannel Crosstalk <-80dB, 20Hz to 20kHz Noise Reduction Up to 20dB of dynamic broadband noise reduction NR Switch Activates dbx Type III Noise Reduction Bypass Switch Bypasses the graphic equalizer section in the signal path Low cut Switch (recessed) Activates the 40Hz 18dB/octave Bessel high-pass filter Range Switch (recessed) Selects either +/- 6dB or +/- 15dB slider boost/cut range I/O Meter 4-LED bar graph (Green, Green, Yellow, Red) at -10, 0, +10, and +18dBu Gain Reduction Meter 4-LED bar graph (all Red) at 0, 3, 6, and 10dB Indicators NR Active (Yellow); EQ Bypass (Red); Clip (Red); Low Cut (Red); +/-6dB (Yellow); +/-15dB (Red) Operating Voltage 100VAC 50/60Hz; 120VAC 60Hz; 230VAC 50/60Hz Power Consumption 28W Power Connector IEC receptacle Dimensions 5.25" H X 19" W X 7.9" D (13.335cm x 48.3cm x 20.1cm)