FEATURES AND FACILITIES

ALPHA Driver Units are weather-proof and of rugged construction to withstand vibrations and damages.

The aluminium die casted cup and acoustic head acts as a heat sink for dissipating heat produced by the voice coil, contributing to long and trouble free service.

ALPHA diaphragm used are precision wound on an aluminium bobbin for good heat dissipation from the coil thereby improving efficiency and reliability of the speaker.

A high SPL achieved produces a clean, crisp and intelligble sound of high level thus consuming less power from the amplifier.

TECHNICAL SPECIFICATIONS

MODEL	AU-40	AU-60	AU-40T
INPUT POWER	40W RMS	60W RMS	40W RMS
	60W Max.	90W Max.	60W Max.
IMPEDANCE	16 Ohms	16 Ohms	-
POWER TAP ON 100V LINE	-	-	250 Ohms/40W
			330 Ohms/30W
			500 Ohms/20W
			1 KOhms/10W
FREQUENCY RESPONSE	160-7000 Hz	160-8000 Hz	160-7000 Hz
SPL AT 1KHz	112.5dB/1W/1m	113.5dB/1W/1m	112.5dB/1W/1m
	128.5dB/40W/1m	131.5dB/60W/1m	128.5dB/40W/1m
IP NORM	65
THROAT COUPLING	1-3/8" -- 18 TPI, Throat Couple No. 1
DIMENSIONS	112 x 95mm	125 x 100mm	150 x 136mm
WEIGHT	2.00 kg	2.40 kg	2.45 kg
MATERIAL	Die-cast Aluminium Acoustic Head (Flange) and Unit Cover (Cup)