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Description
Dual 31-Band electronic graphic equalizer (with compressor and Type III Noise Reduction)
2231 is designed basing on 1231 with adding compression limiter and type Ⅲ Dolby noise reduction equalizer. With type Ⅲ Dolby noise reduction function, help to further reduce the noise of the system, making the system very quiet. Compression limiter function use the currently best limiter IC (THAT2181 and THAT2522) for production, with greater than 120dB dynamic range, less than 0.0025% distortion, totally can meet with the professional level compression limiter. 2231 is a professional equalizer with equalizers, compressors, limiters, type Ⅲ Dolby noise reduction, such three kinds of equipments together, widely using in various high-end applications.
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High-strength 3U aluminum panel chassis, beautiful and practical |
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dual filter dust-proof design, the complete elimination of dust impacts |
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45mm length faders produced by brand-named manufacturer, with good hand-feeling, precise adjustment |
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high-power switching power supply, with stable performance, wide voltage range |
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double-sided circuit board production, with reliable performance, low noise |
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Imported IC and high precision RC components, with high consistency, good sound quality |
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input / output connectors: 1/4 inch TRS, XLR and strip type terminals |
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professional-grade compression limiter function, with high dynamic range, low distortion |
Product Description
The Dual Channel 31 Graphic Equalizer 2231 is Revolutionary instant encode/ decode type noise Reduction in-circuit at the push of a button. Increases S/N ratio by upto 20dB.
Patent-pending peakplus™ Limiter Threshold range from OdBu to +24dBu(off) can transparently tame the wildest hits or the subtlest nuances of any signal.
Status LEDs offer visual feedback for all settings on the front panel.
| 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 |
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Signal-to-Noise (NR In: ±6dB & ±15dB ranges) |
>102dB, unweighted, ref: +4dBu, 22kHz measurement bandwidth |
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Dynamic Range (NR In: ±6dB & ±15dB ranges) |
>120dB, unweighted |
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Signal-to-Noise (NR Out: ± 6dB range) |
>94dB, unweighted, ref: +4dBu, 22kHz measurment bandwidth |
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Dynamic Range (NR Out: ±6dB range) |
>112dB, unweighted |
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Signal-to-Noise (NR Out: ±15dB range) |
>90dB, unweighted, ref: +4dBu, 22kHz measurement bandwidth |
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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 | Activates the 40Hz 18dB/octave Bessel high-pass filter |
| Range Switch | Selects either ± 6dB or ± 15dB slider boost/cut range |
| I/O Meter | 4-LED bar graph at -10, 0, +10, and +18dBu |
| Gain Reduction Meter | 4-LED bar graph (all Red)at0,3,6,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 | 13.34cm x 48.3cm x 20.1cm |
⭐Shipping & Return⭐
Worldwide Delivery
Receiving time = Processing time + Shipping time
Processing Time:5-7 Business Days
Due to the impact of the epidemic, the logistics time may be later than the original.
We hope you will be patient and wait! We will expedite the delivery, and hope to understand, thank you!
⭐Shipping Time⭐
Express Shipping
Standard Shipping
Return or exchange within 30 days from the delivered date is accepted, Requirement:
1. Items received within 30 days from the delivered date.
2. Items received unused, undamaged, and in original package.
3. Buyers need to pay the return shipping cost, please don’t mind before bidding.
⭐Please Note⭐
1. Due to the difference of light and screen, the color of the item may be slightly different from the picture;
2. Please read and consider carefully before shopping. Thank you for your understanding.
Insured Worldwide Shipping: Each order includes real-time tracking details and insurance coverage
in the unlikely event that a package gets lost or stolen in transit.
Money-Back Guarantee: If your items arrive damaged or become defective within 30 days of normal usage,
we will gladly issue out a replacement or refund.
✉️ 24/7 Customer Support: We have a team of live reps ready to help and answer any questions you have
within a 24-hour time frame, 7 days a week.
Safe & Secure Checkouts: We use state-of-the-art SSL Secure encryption to keep your personal and
financial information 100% protected.
Enping Crcbox Audio Technology Co., Ltd.
Located in the foreign-funded private industrial zone in Enping City, Guangdong Province. We specialize in professional audio research and development, production and sales. Products include mixers/wireless microphones/power amplifiers/active or passive speakers / line array speakers/.. Since the establishment of the company, we have been aiming to develop trade and export every year. Exports have expanded, economic benefits have increased year by year, service methods have become more complete, and considerable development has been achieved. Products are exported to Europe, America, the Middle East, Southeast Asia... more than 96 countries and regions.
We have a dedicated team that is disciplined, united, skilled, and experienced. We pay attention to the people-oriented business philosophy, pay attention to employee re-education and skills, management training, and strive to create a beautiful working environment and working atmosphere for employees. We always follow "first" and lay a solid foundation for future development. With the tenet of "first-class products, first-class service, first-class reputation", it enjoys a high reputation at home and abroad, and has established good cooperative relations with domestic and foreign government departments, financial institutions and other customers.
Warmly welcome you to visit our company and work together with us to create a better future.
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