Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: EMB Professional Sound System EB731EQ Graphic Equalizer/Limiter
Product description: Innovative technologies: a sophisticated technology, applications for various long-term maintenance-free performance. magnetic isolation transformer, electronically balanced / unbalanced inputs and servo balanced / unbalanced output, input and output are equipped with radio frequency finer and turn off the power of hard-line relay bypass and 2 seconds of power-delay, so that engineers can ensure the compatibility of various installed. Products in production use only the best components, so there ts 10Hz to SOKHz frequency response, greater than 90dB signal to noise ratio (reference level to +40). less than 0.006% total harmonic distortion + noise (1kHz at *4 dBu). and from 20Hz to 20kHz than-eOdB crosstalk between channels. Selectable boost / cut ranges: 6dB and 15d8. electronic balanced / unbalanced Inputs, servo balanced / unbalanced output. Input and output are equipped with radio frequency filter XLR. row-like terminal blocks, and 1/4 *TRS interlaces.- 12dB / + 12 dB input gain range, l8dB / octavo 40Hz Bessel low frequency switching fitter, chassis / signal ground lift capability, built-in power supply, turn off the power re<ay hard wire bypass and 2 seconds of power-delay. visually-oriented design to meet the needs of the majority of sound reinforcement projects, it has the &mpte and intuitive control. dual-channel. 31 1 / 3 octave equalizer. 45mm fader; selectable + M5d8 boost / cut range kx more precise gain adjustments; XLR. Pai Zhuang by terminals and 1 / 4 TRS balanced interface to adapt to a variety oi installation needs; work for low noise balanced inputs and outputs; and the elimination of AC noise, chassis / signal ground Mt capacities. Input Interlace: 1 / 4 inch TRS.
Product feature: Innovative technologies: a sophisticated technology, applications for various long-term maintenance-free performance. magnetic isolation transformer, electronically balanced / unbalanced inputs and servo balanced / unbalanced output, input and output are equipped with radio frequency finer and turn off the power of hard-line relay bypass and 2 seconds of power-delay, so that engineers can ensure the compatibility of various installed. Products in production use only the best components, so there ts 10Hz to SOKHz frequency response, greater than 90dB signal to noise ratio (reference level to +40). less than 0.006% total harmonic distortion + noise (1kHz at *4 dBu). and from 20Hz to 20kHz than-eOdB crosstalk between channels. Selectable boost / cut ranges: 6dB and 15d8. electronic balanced / unbalanced Inputs, servo balanced / unbalanced output. Input and output are equipped with radio frequency filter XLR. row-like terminal blocks, and 1/4 *TRS interlaces.- 12dB / + 12 dB input gain range, l8dB / octavo 40Hz Bessel low frequency switching fitter, chassis / signal ground lift capability, built-in power supply, turn off the power re<ay hard wire bypass and 2 seconds of power-delay. visually-oriented design to meet the needs of the majority of sound reinforcement projects, it has the &mpte and intuitive control. dual-channel. 31 1 / 3 octave equalizer. 45mm fader; selectable + M5d8 boost / cut range kx more precise gain adjustments; XLR. Pai Zhuang by terminals and 1 / 4 TRS balanced interface to adapt to a variety oi installation needs; work for low noise balanced inputs and outputs; and the elimination of AC noise, chassis / signal ground Mt capacities., Input Interlace: 1 / 4 inch TRS. XLR sockets (two feet for the hot side is the female head), and terminal strips Type: Electric balanced / unbalanced, RF filtered Impedance: balance is 40k0, non-equilibrium for the 20 kO Maximum Input Level:> +21 dBu, balanced or unbalanced, CMRR;> 40dB. typically 55dB. 1KHz Output interface: 1/4 inch TRS. XLR sockets (two feet for the heat is end. each head), and terminal strips Type: Impedance balanced / unbalanced, RF filtered Impedance: balance is 2000,100 Q unbalanced for the Maximum Input Lovol:> +21 dBu, balanced / unbalanced loads or more loads 2k, CMRR 18d8u. balanced / unbalanced (connected 6000 load) Bandwidth: 20Hz-20KHz. +05 dB/-1Db Frequency response dynamic range: I09d8 115d8 SNR: 90dB 97dB Total harmonic distortion + noise: <0.006% Crosstalk between channels: <-80dB, 20Hz-20KHz Balanced bypass: the signaling pathway graphic oquaiizor off part of bypass Low frequency switching (concealed): Start 40Hz 18dB/oct Bessel high-pass filter, Range (concealed): Select 6dB or 15dB fader upgrade/Attenuation Range / LED Output Level: 4-LED indicator strip icon (green, green, yellow, red) corresponding to -10.0, +10 and +18 dBu Balanced bypass: a LED: red clipping instructions: 1 LED red / Low Frequency Switching: 1 LED: Red + /6dB; an LED; yeltow +- 15dB:1 LED: red / Power: Working voltage: 230VAC 50Hz Power consumption: 24W Power Connector: IEC plug
Product price: $22.99
Product brand: EMB
Target attributes: Number of Bands
Answer: attribute: number of bands
value: None
source: None