SPECIFICATIONS
Type: Monitor speaker panel
Input Source: 70-volt lines, up to five line pairs
Input Power: 1 watt maximum Input Impedance: 5000 ohms
Controls: 1 LINE SELECTOR 5-position rotary switch 1 VOLUME control with ON-OFF switch

Dimensions: 5'/4 " H x 19" W x 5" D (13.34 cm H x 48.26 cm W x 12.70 cm D)

Weight: 6 pounds (2.72 kg)

Color: Black

ARCHITECT'S AND ENGINEER'S SPECIFICATIONS
The passive monitor panel shall be mountable in a standard 19" wide equipment rack. It shall contain a 5-position line-selector switch, a volume control with on-off switch and a 4" monitor speaker. It shall meet the following performance criteria. Monitor capability, up to five line pairs, each having an input source of 70V. Input power required, not more than 1 watt. Input impedance, 5000 ohms. It shall be 51/4" H x 19" W x 5" D, weigh 6 pounds, and its color shall be black.
The passive monitor panel shall be the ALTEC Model 1597B.