4
3. TECHNICAL SPECIFICATIONS
Descriptions
Powered System type
LOW Output Power
HIGH Output Power
Max SPL at 1m
Frequency Response
Impedance Low - High
Crossover Frequency
Protection Low - High
Low - Frequency
High - Frequency
Horn Coverage H V
Input Sensitivity
Input Impedance
Connectors
Plastic Reinforced Cabinet
Amplifier Protections
External Control
Power Supply
Dimensions H W D
Net Weight /
Gross Weight lbs/kg
Shipping Volume
kg lbs
PS 4LA
Bi-Amp. with analog processor
150W RMS Bridge Class AB
50W RMS Class AB
119dB SPL
55Hz / 20kHz +/- 10dB
Low 8Ohm - High 8Ohm
Complex EQ Processor
Limiter / Compressor plus PTC
12" / 305mm - 2" voice coil
90 H 45 V
Line + 4dB / 1.23V
30kohms Balanced -
15kohms Unbalanced
Input with Jack / Link with XLR
Trapezoidal & Monitor shape
Soft Start - Short Circuit -
DC voltage - Thermal Protection
Volume - Clip - Ground Switch
230Volt / 115Volt 50 /60Hz
660mm 396mm 384mm
(26" 15.6" 15.1")
19.40kg / 42.76 lbs
22.05kg / 48.61lbs
4.83CFT
Descriptions
System type
Continuos Power
Peak Power Rating
Sensitivity at 1W, 1mt
Max SPL at 1mt
Frequency Response
Impedance
Crossover Frequency
Lower - Frequency
High - Frequency
High Frequency Protection
Dimensions H W D
Net Weight /
Gross Weight lbs/kg
Shipping Volume
kg lbs
PS 4L
2 - way vented box
200 Watt AES Standard
400 Watt Peak
96dB SPL
119dB SPL Calculated
60Hz / 20kHz +/-10dB
8 ohm Nominal
2450Hz at 12dB/Oct
12" / 305mm - 2" voice coil
Electronic Dynamic Protection
660mm 396mm 384mm
(26" 15.6" 15.1")
17.38kg / 38.32lbs
19.82kg / 43.69lbs
4.83CFT
The AES 2 - 1984 Standard specification by Audio Engineering
Society, is representative and commonly used for the measure
in Professional Sound Reinforcement.
It is defined as the square of the RMS voltage generated with a
pre-defined and band-passed Pink Noise Signal, applied con-
tinuously for 2 hours, on the assembled speaker cabinet.
In this way, the declared power of ALTO passive speaker cabinet,
is comparable to the RMS voltage value, measured on the equiva-
lent power amplifier for the same value of impedance.
1" Compression Driver -
1" Voice Coil
1" Compression Driver -
1" Voice Coil
(6 pages)
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