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Produttore : AKG Acoustics
File Size : 484.2 kb
File Nome : 644e201e-3f49-9714-9d5b-0cb52909cd08.pdf
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The AS 4+3 has four balanced mic inputs and three unbalanced line inputs, as well as, one balanced line output and one unbalanced record/line output. Each of the four mic inputs have integrated and adjustable compressor/levelers making the AS 4+3 an automatic level control system. The compressor/levelers can help maintain consistent audio level despite various signal strengths that may be present at the microphone inputs. NOM attenuation decreases by 3dB every time the number of in-use mics doubles. A switcheable ducking function will attenuate all other inputs by 12dB when signal is present at mic input #1. Dipswitches on the rear panel allow for the line inputs to be exempted from the automix and/or ducking functions in the mixer. The AS 4+3 was designed to operate with various types of microphones. Dip switches on the rear panel allow for 24 volt phantom powering of condenser microphones. The preamp gain range for the mic input signal are switcheable on the rear panel while front panel controls provide fine adjustment of input and output signals for an exact match into whatever component follows the AS 4+3. More than one AS 4+3 may be daisy chained via expansion port connection incorporating the automix functions so that all will work together as one unit. AS 4+3 Automixer Features • Four automatic microphone inputs, three line inputs • Integrated compressor/leveler for consistent levels • Ducking/priority function • Expansion ports for larger systems • Low and high frequency shelving controls on master line output • Balanced line output and unbalanced record output Architects and Engineers Specifications The mixer shall be an automatic mixer capable of being daisy- chained, with four gated microphone inputs and three line inputs. The microphone inputs shall provide 24-V phantom power and a compressor limiter separately adjustable for each channel. The device shall be fitted with microphone inputs and a line output on 3-pin XLR connectors and line inputs and recording outputs on Specifications Microphone Inputs Type: balanced and RF filtered Impedance: approx. 2.4 k. at any level Nominal level: -50 to -10 dBu adjustable in two sub-ranges S/N ratio: 75 dB (20 Hz to 22 kHz, rms) Max. input level: +5 dBu Turn-on threshold: -32 to 0 dB re nominal input level Hold time: 1/4/8/12 secs. ±20% Gate attenuation: 14 to 26 dB, adjustable Compression ratio: linear to 2:1, adjustable Audio bandwidth: 20 Hz to 35 kHz NOM attenuation: 1 microphone: 0 dB 2 microphones: -2.1 dB 3 microphones: -4 dB 4 microphones: -5.5 dB 5 microphones: -7.2 dB 6 microphones: -8.6 dB 7 microphones: -9.9 dB 8 microphones: -11 dB Phantom power: 24 V, switchable on each channel (Ri = 2 x 1.2 k.) RCA jacks. A switchable ducking function shall cause all other channels to be attenuated while there is activity in the MIC 1 channel. The mixer shall be fitted with a two-band equalizer (bass and treble) affecting only the main output signal. The automatic mixer shall be the AKG Acoustics Model AS 4+3. Line Inputs Type: unbalanced and RF filtered Impedance: >35 k. Nominal level: -10 dBu S/N ratio: 75 dB (20 Hz to 22 kHz, rms) Audio bandwidth: 20 Hz to 45 kHz Max. input level: +5 dBu System: Max. gain: 55 dB (input to main output) Ducking attenuation: 9 dB to 20 dB, adjustable THD: <0.1%; at any level setting IM distortion: <0.1%; at any level setting Power requirement: 5 W max. at 12 V AC Weight: 5.5 lbs. (2.5 kg ) Size: 19 x 1.7 x 7 in. (483 x 44 x 180 mm) or consequential damages. However, the limitation of any right or remedy shall not be effective Limited Warranty where such is prohibited or restricted by law. Simply take or ship your AKG product prepaid to our Valid only in the United States. AKG Acoustics warrants AKG products against defects in material service department. Be sure to include your sales slip as proof of purchase date. (We will not repair or workmanship for a period of two years from the date of original purchase for use, and agrees to transit damage under the no-charge terms of this warranty.) Note: No other warranty, written or oral repair or, at our option, replace any defective unit without charge for either parts or labor. Important: This warranty does not cover damage resulting from accident, misuse or abuse, lack of reasonable is authorized by AKG Acoustics, Inc. This warranty gives you specific legal rights, and you may also care, the affixing of any attachment not provided with the product, loss of parts or connecting the have other rights which vary from state to state. Some states do not allow the exclusion or product to any but the specified receptacles. This warranty is void unless service or repairs are limitation of incidental or consequential damages or limitation on how long an implied warranty performed by an authorized service center. No responsibility is assumed for any special, incidental lasts, so the above exclusions...