1231 Professional 2 Channel Stereo Graphic Equalizer
1231 is designed mainly for a variety of long-term and free maintenance requirements, with the use of innovative technology and advanced production technology, created the dual 31-band equalizer. Using advanced circuit design, high quality components, allowing 1231 to be with 10HZ to 50KHZ frequency response, greater than 90dB signal to noise ratio, less than 0.005% total harmonic distortion and greater than 90dB channel isolation. 45mm length faders produced by brand-named manufacturer, with perfect damping, good hand-feeling. High quality high power and reliable switching power supply, ensures that the machine can work long-term and stable under 100V ~ 240V, meet with global standard power supply in all countries.
Feature
High-strength 3U aluminum panel chassis, beautiful and practical
dual filter dust-proof design, the complete elimination of dust impacts
45mm length faders produced by brand-named manufacturer, with good hand-feeling, precise adjustment
high-power switching power supply, with stable performance, wide voltage range
double-sided circuit board production, with reliable performance, low noise
Imported IC and high precision RC components, with high consistency, good sound quality
input / output connectors: 1/4 inch TRS, XLR and strip type terminals
Technical Parameters
| Input impedance |
Balanced 40KΩ, 20KΩ unbalanced |
| Output Impedance |
Balanced 200Ω, 100Ω unbalanced |
| Maximum input level |
+21 dBu, balanced or unbalanced |
| Band Width |
20HZ-20KHZ (+0.5 dB/-1dB) |
| Dynamic range |
109dB 115dB |
| SNR |
90dB 97dB |
| Total Harmonic Distortion |
<0.005% |
| Channel Isolation |
90dB |
| Power Supply |
220V 24W |
