Definitive Technology DI 4.5R In-Ceiling Loudspeaker Leaflet
Superior technology ensures lifelike sound quality for every listener in the room.
Smooth and accurate on-axis frequency response
Optional fire-rated back boxes:
Besides meeting code for multi-family
and commercial installations, these heavy-
gauge steel enclosures reduce sound
leakage into adjacent living spaces. Order
SKU code UFEA.
and commercial installations, these heavy-
gauge steel enclosures reduce sound
leakage into adjacent living spaces. Order
SKU code UFEA.
Optional rough-in brackets:
The pre-construction bracket is installed
before the drywall to indicate where the
drywall contractor should cut the speaker
hole. Metal mesh wings can be positioned
at various angles and nailed or stapled to
studs and joists. Order SKU code RBAB
(2 units per carton).
before the drywall to indicate where the
drywall contractor should cut the speaker
hole. Metal mesh wings can be positioned
at various angles and nailed or stapled to
studs and joists. Order SKU code RBAB
(2 units per carton).
Painting:
DI Series grilles may be
painted to match wall color. Use a paint
sprayer or air brush to apply diluted latex
paint (6:1 paint to water or latex thinner)
in four light coats. DO NOT PAINT
GRILLES WITH A BRUSH OR
ROLLER! For full painting instructions,
see the manual:
sprayer or air brush to apply diluted latex
paint (6:1 paint to water or latex thinner)
in four light coats. DO NOT PAINT
GRILLES WITH A BRUSH OR
ROLLER! For full painting instructions,
see the manual:
www.definitivetech.com/Learning/manuals.aspx
Overall
Dimension
772 mm
[30.3750“]
Cutout
Diameter
125 mm
[4.9375“]
Frame
Width
150 mm
[5.8750“]
DI 4.5
R
In-Ceiling Loudspeaker
Disappearing
™
In-Wall Series
Specifications:
Grille Diameter 5
3
⁄
8
" (13.55 cm);
Cutout Diameter 4
1
⁄
2
" (11.5 cm); Total Depth *3
3
⁄
8
" (8.64 cm);
Mounting Depth In Wall **2
7
⁄
8
" (7.4 cm); Woofer 4
1
⁄
2
" (11.4 cm);
Tweeter
3
⁄
4
" (20 mm); Product Weight 2.6 lb. (1.16 kg);
Frequency Response 35 Hz – 30 kHz; Sensitivity 88 dB;
Impedance compatible with 4 – 8 Ohm outputs;
Min/Max Recommended Power 10/150 WPC
Impedance compatible with 4 – 8 Ohm outputs;
Min/Max Recommended Power 10/150 WPC
* From back of mounting flange to deepest part of product
** Total depth when product installed in 1/2" (12.7mm) thick material
** Total depth when product installed in 1/2" (12.7mm) thick material
11433 Cronridge Drive, Owings Mills, Maryland 21117, U.S.A. (410) 363-7148
www.DefinitiveTech.com
Uniform polar response
SPL vs Frequency
SPL vs Angle
Order SKU RBAB
460 mm
[18.11”]
166 mm
[6.54”]
202 mm
[7.95”]
116.5 mm
[4.5938”]
136 mm
[5.35”]
99 mm
[3.88”]
Order SKU UFEA