Extron electronic MLS 304MA Audio output stereo power amp MLS 304SA, MLS 406SA only, General

Maximum power output
Direct (4/8 ohm)	20 watts max. (continuous)
Transformer (70/100 ....V) 16 watts max. (continuous), transformer coupled
Protection	Input limiting, thermal, short circuit

Audio output — stereo power amp (MLS 304SA, MLS 406SA only)

Number/signal type	(1) stereo (default) or dual mono (configured via software)
Connector	(1) 5-position screw terminal
Sensitivity	-20 dBV (-17.8 dBu; 100 mVrms) (adjustable) for maximum power output
Power bandwidth
Direct (4 ohm)	10 Hz to 20 kHz, ≤ 0.5% THD
Direct (8 ohm)	20 Hz to 20 kHz, ≤ 0.8% THD
Maximum power output
Direct (4 ohm)	24 watts max. (continuous), 12 watts (rms) per channel
Direct (8 ohm)	16 watts max. (continuous), 8 watts (rms) per channel
Protection	Input limiting, thermal, short circuit

Control/remote — switcher

Serial control port	RS-232, 3.5 mm captive screw connector, 5 pole (uses 3 poles)
Baud rate and protocol	9600, 8-bit, 1 stop bit, no parity
Serial control pin configurations. 1 = TX, 2 = RX, 4 = GND
Program control	Extron’s configuration program for Windows®
	Extron’s Simple Instruction Set (SIS™)

General

Power	100 VAC to 240 VAC, 50/60 Hz, 60 watts, internal, autoswitchable
Temperature/humidity	Storage -40° to +158°F (-40° to +70°C) / 10% to 90%, noncondensing
	Operating +32° to +113°F (0° to +45°C) / 10% to 90%, noncondensing
Rack mount	Yes, with included brackets (#70-077-03)
Enclosure type	Metal
Enclosure dimensions	1.75" H x 17.5" W x 8.5" D (1U high, full rack wide)
	4.4 cm H x 44.4 cm W x 21.6 cm D
	(Depth excludes connectors and knob)
Product weight
MLS 406	5.0 lbs (2.3 kg)
Amplified models	6.0 lbs (2.7 kg)
Shipping weight
MLS 406	10 lbs (5 kg)
Amplified models	11 lbs (5 kg)
Vibration	ISTA 1A in carton (International Safe Transit Association)
Listings	UL, CUL
Compliances	CE, FCC Class A, VCCI, AS/NZS, ICES
MTBF	30,000 hours
Warranty	3 years parts and labor

NAll nominal levels are at ±10%.

NSpecifications are subject to change without notice.

MLS 304 Series, MLS 406 Series • Reference Material A-

PRELIMINARY