The Shure Model M267 is a microphone mixer-remote amplifier specifically designed for professional applications. The excellent performance, versatility and features of this complete, compact console make it an ideal choice for studio, remote, or sound reinforcement use, and as an add-on mixer for expanding existing facilities. It is also ideally suited for use with audio and video tape recorders to provide multiple microphone inputs.

• Wide, flat frequency response and extremely low distortion up to +18 dBm output
• Extremely low noise and RF susceptibility
• Four switchable microphone- or line-level balanced-line inputs with individual gain controls and low-frequency rolloff switches. MUMETAL shielding on input transformers
• Feedback-type input gain controls for maximum clipping levels and dynamic range
• Output switchable for line or microphone level
• Built-in switchable peak limiter cuts output overload distortion, adapts to power supply voltage
• LED indicator shows limiter operation or overload with limiter defeated
• Externally adjustable limiter threshold (–4 to +18 dBm)
• VU meter calibrated for +4 and +8 dBm with range switch. Illuminated with ac operation
• Ac or built-in battery operation. Noiseless automatic switchover to battery in case of ac line failure. Battery test without program interruption
• Front-panel headphone level control and monitor jack drives almost any stereo or mono headphones; output can be additional unbalanced line feed to drive a tape recorder or power amplifier
• Direct mix bus for stacking units
• Automatic muting prevents speaker damage during turn-on and -off
• Low distortion, high-stability tone oscillator for line test and level checks.

The Shure Model M268 is a highly versatile portable microphone mixer designed for use with sound reinforcement, tape recording and audio-visual systems. Its excellent operational characteristics, compact size, and functional capabilities make the M268 a fine choice as a primary or add-on mixer in any sound system.

• Wide, flat frequency response and extremely low distortion at full output
• Very low line noise and radio frequency interference susceptibility
• Four low-impedance balanced and four highimpedance unbalanced inputs
• High-level auxiliary input for tape, tuner and accessories
• Individual feedback-type active gain controls for all five inputs
• Master volume control sets overall output level
• Phantom power for condenser microphones
• High- (unbalanced) and low-impedance (balanced) microphone-level output matches most amplifier inputs
• High-impedance auxiliary outputs for high-level equipment inputs
• Direct mix bus for simple mixer interconnection ("stacking")
• Automatic muting circuit prevents speaker damage during turn-on and -off
• Regulated power supply is unaffected by line voltage fluctuations.
• Compact and lightweight, with rugged, abrasionresistant case
• Listed by Underwriters' Laboratories, Inc. and listed by Canadian Standards Association as Certified