Roland ac-90 Owner's Manual

By using a speaker stand, you can mount the AC-90 at the optimal height for use as a monitor speaker or simple PA device.

● The AC-90 is designed to be used only with speaker 

stands whose dimensions meet the specifications 

described below.

Do not use it with a speaker stand that does not meet the 

following specifications.

fig.120

fig.130

● Before use, adjust the speaker stand to a height of 140 cm 

(55-1/8”) or less and a leg spread of 120 cm (47-1/4”) or 

more, as shown in the figure below.

fig.110\

● Using a speaker stand that does not meet the 

specifications at left or that is adjusted to a height over 

140 cm (55-1/8”), or a leg spread of less than 120 cm (47-

1/4”) may result in damage to equipment or injury due to 

the stand tipping over.

● When using the AC-90 with a speaker stand, the speaker 

stand must be carefully placed so it is level and sure to 

remain stable.

● Cables connected to the AC-90 should be given enough 

slack to prevent accidents that might result from someone 

tripping over them.

● To prevent accidents due to falls, do not place any object 

on the AC-90 when it’s mounted on a speaker stand.

● Always have at least one other person assist you when 

mounting the AC-90 on a speaker stand, or when 

adjusting the height of the stand while the AC-90 remains 

mounted on it.

Leg spread: 120 cm or more

Diameter: 3.8 cm

(1-1/2”)

(47-1/4”)

Diameter: 

136 cm or more

Leg spread: 120 cm or more

(47-1/4”)

(53-9/16”

)

140 cm or less

120 cm or more

(55-1/8”)

(47-1/4”)

AC-90_egfispd.book  Page 16  Tuesday, August 14, 2007  10:09 AM