Agenda - Council - 08/24/1982 - Laserfiche WebLink

Home

Iical way to increase the efficiency, usefulness and flexibility of public-address and paging systems, or tape recorders using more than one microphone or other sound source. (One prime ex- ample: extra microphones can be placed in the audience for Iquestion-and-answer sessions.) These mixers are unique in that they satisfy the re. quirements of most sound system installa- tions and serious [ape recording enthusiasts, while being light enough to be portable, simple to operate and modest in cost. leach microphone (or other sound source) can be independently balanced for volume without affecting any of the other inputs. In addition to independent volume controls, a master volume con- trol simultaneously controls the gain of all inputs. The M68 can therefore be used as a conveniently-at-hand sound system volume i control in situations where the regular amplifier is located some ~,;distance away. MOdel M65 Mixero.~nput connections are MALE professional i"three-pin audio connectors* for 120 Volts AC -+10% 50160 Hz. Model M6$FC Mixer. Input connections are FEMALE profes- sional three-pin audio connectors* for 120 Volts AC ±]0% 50/60 Hz. Model M6$FCE Mixer. Same as M68FC, but for both 120 Volts AC +-10% 50~60 Hz and 240 Volts AC ±10% 50/60 Hz with 3 Conductor Cable. Model M68P ]%Iixer. Input connections are phone plug (high impedance only). 120 Volts AC -+10% 50/60 Hz. REVERBERATION MIXERS Model M68RM. 4-channel Reverberation Mixer. Female pro- fessional three-pin audio connectors* 120 Volts -+10% AC, 50/60 Hz. Model M68RM-2E, Same as M68RM but for 240 Volts -+10% AC 50/60 Hz. 3 Conductor Cable. *Designed to mate with Cannon XL series, Switchcraft A3 series or equivalent connector. I Type: Transistorized. IFrequency Response: Flat +3 db, 40 to 20,000 Hz. Power Consumption: 3 watts. Microphone Inputs: Accept Dynamic, Ribbon or Condenser mi- Icrophones (not recommended for crystal or ceramic micro- phones), either high impedance {'unbalanced) or Iow impedance (balanced transformer input), Input impedance for each micro- phone is selected by a slide switch. You can use one type or imodel microphone, or mix several types and impedances. (Model M68P~is High Imped, ance only.) Auxiliary Input: High level--accepts output of additional M68 Series Mixer, tape recorder, tuner, or phonograph signal (with iadditional preamplifier). Controls: Four individual Microphone Volume Controls to raise or lower the level of sound from each microphone. Auxiliary Input Volume Control adjusts sound level of tape recorder, phono- I Specifications ~or M68 Series Mixers graph, tuner or additional mixer. Master Volume Control simul. taneously adjusts the volume of all inputs. On-Off switch and Pilot Light. Outputs: Two outputs: one provides high or Iow impedance out- put for connection to the microphone input of a sound system amplifier or tape recorder. Impedance is selected by switch. The other provides a high impedance, high level output designed primarily to feed a power amplifier or tape recorder requiring 0.5 to 2 volts. Battery Operation: All units can be operated from an external battery supply. See accessories on page 23 for battery supply unit. Weight: Model M68P, 2% lbs.; Models M68, M68FC and M68FCE, 4 lbs.; Models M68RM and M68RM-2E, 51/8 lbs. Case Dimensions: 23A'' high, .113/8'' wide, 5V4 deep. (M68RM 71/4'' deep). UL and CSA listing on models M68, M68FC, M68P, and M68RM only.