4.5", 2-way, 150° conical DMT



Effective frequency range1

70 Hz – 20 kHz

Rated noise power / voltage2

30 watts / 22 volts (rms)

Sensitivity [dB]3
Sensitivity at 4m, 100V maximum tap


Rated coverage (-6 dB)4

150° conical DMT

Directivity factor (Q)4


Directivity index (DI) [dB]4


Maximum continuous SPL [dB]5


Maximum peak SPL [dB]5


Nominal impedance [ohms]


Recommended amplifier

60 watts

Transformer taps / impedance

16Ω (in bypass setting)
3.75W (70V); 7.5W (100V) Tap: 1333Ω
7.5W (70V); 15W (100V) Tap: 667Ω
15W (70V); 30W (100V) Tap: 333Ω
30W (70V); N/A (100V) Tap: 167Ω

LF transducer

114 mm [4.5 in] weather resistant paper cone woofer

HF transducer

25 mm [1 in] aluminum dome tweeter

Input connector type

Euroblock connector with parallel output

Enclosure material

ABS baffle on powder coated steel back can

Grille material

Powder coated steel

Ingress protection


Operating environment

Designed for indoor use

Operating temperature range

-20 to 50° C [-4 to 122° F]

Cutout dimension

Ø 195 mm [Ø 7.68 in]

Net weight

2.9 kg [6.4 lb]

Product dimensions (Diameter x Height)

Ø 230 x 176 mm [Ø 9.06 x 6.93 in.]

Shipping weight

9.3 kg [20.5 lb] (pair packed)

Shipping dimensions (H x W x D)

279 x 711 x 318 mm [11 x 28 x 12.5 in] (pair packed)

Included accessories

C-ring and tile rails, rail screws, euroblock connector, cut-out template, grille

Optional accessories

AD-MR4 (pre-install mud ring)
AD-CC4 (pre-install conduit cover)

Safety Agency

EN54-24: 2008 type A (No. pending)
UL1480, UL2043, NFPA90, NFPA70 suitable for use in air handling spaces. Transformer UL registered per UL1876, ROHS, C-Tick X000, CE compliant. Baffle meets UL94-V0 and UL94-5VB flammability rating; in accordance with IEC60849 / EN60849 systems.


1 -10dB from rated sensitivity
2IEC noise , 2 Hrs 
3Transfomer bypassed, 1W, 1m, IEC baffle, 200-10kHz average, on-axis
4500 Hz–5 kHz average
5Calculated from rated noise voltage and sensitivity