Toa HY-TR1 Instruction Manual Download Page 1

Please follow the instructions in this manual to obtain the optimum results from this unit. 
We also recommend that you keep this manual handy for future reference.

HY-TR1

TRIM RING

INSTRUCTION MANUAL

Indicates a potentially hazardous situation which, if mishandled, could
result in death or serious personal injury. 

WARNING

Indicates a potentially hazardous situation which, if mishandled, could
result in moderate or minor personal injury, and/or property damage.

CAUTION

• Be sure to read the instructions in this section carefully before use.
• Make sure to observe the instructions in this manual as the conventions of safety symbols and messages

regarded as very important precautions are included.

• We also recommend you keep this instruction manual handy for future reference. 

• Leave the installation to your TOA dealer because the installation requires expert knowledge. Improper

installation may cause the speaker to fall, resulting in personal injury and/or property damage.

• Install the mounting hardware in a location that can structurally support the weight of the mounting hardware

and the speaker. Doing otherwise may result in the speaker falling down and causing personal injury and/or
property damage.

• Do not use other methods than specified to mount the unit. Extreme force is applied to the unit and the unit

could fall off, possibly resulting in personal injuries.

• Tighten each screw securely. Ensure that the unit has no loose joints after installation to prevent accidents

that could result in personal injury.

• Use the specified speaker in combination. Doing otherwise may cause the speaker or component to fall off,

resulting in personal injury.

• Avoid touching the unit's sharp metal edge to prevent injury.

TOA's HY-TR1 Trim Ring is used to install flush-mounted ceiling speakers in larger-than-designated mounting
holes. Using up to two HY-TR1 rings in combination with other mounting hardware allows the speaker to be
installed in mounting holes of from 200 to 300 mm (7 

7

/

8

" – 11 

13

/

16

") in diameter.

3. SPECIFICATIONS

2. GENERAL DESCRIPTION

1. SAFETY PRECAUTIONS

Note:

The design and specifications are subject to change without notice for improvement. 

Mounting Hole Diameter 

ø200 – ø300 mm (7 

7

/

8

" – 11 

13

/

16

")

Finish  

Surface-treated steel plate, white, paint

Dimensions 

ø320 mm (1.2 mm in thickness) or ø12 

19

/

32

" (3/64" in thickness)

Weight 500 

g

Usable Speaker

F-122C, F-122CU, F-2322C, F-2352C

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