Place the SI-275 on a flat level surface like a table or shelf. It should be placed
upright so that its weight rests on the four attached feet. Placing the weight of the
amplifier on the rear or front panel for even an instant will result in damage to the
amplifier's connectors and controls.
The SI-275, like any hi-fi component, will last much longer if it is given adequate
ventilation for proper cooling. When installing the SI-275 in a cabinet, be sure that
the rear of the cabinet is open to fresh air to provide proper cooling (see Figure 1). If
the cabinet's design will not accommodate an open rear, install two small "boxer
fans" to provide continuous air flow into and out of the cabinet (see Figure 2). Place
the SI-275 so that there is at least 7" of free air space above the chassis. If the ampli-
fier is located on a carpeted surface, place a board under the amplifier's feet. Do not
block the ventilation holes on the top and bottom of the SI-275.
CAUTION! When using low impedance speaker loads (less than 8 ohms Normal
Mode) refer to Figure 2 for proper placement.
The SI-275 is equipped with an internal transformer, which generates a powerful
magnetic field which could induce hum in a turntable (particularly a turntable
equipped with a moving coil cartridge). Do not place a turntable directly above
or directly adjacent to the SI-275.
Make sure that there is a minimum of 7" of free air
space above the amplifier for proper ventilation.
Allow a minimum of 5" of depth behind unit
to accommodate cables and connectors.
Boxer Fan (55 CFM)
directly centered 7"
on top of the SI-275.
If the cabinet rear is not open to fresh air or if you're using
low impedance loads, install two "boxer fans" (55cfm fan)
to provide continuous air flow into and out of the cabinet.
Boxer Fan (55 CFM)
directly centered 2"
behind the SI-275.