Nilfisk-ALTO PS Series User Manual
Page 10

9
6. TECHNICAL SPECIFICATIONS
Descriptions
PS4LA Active
PS3A Active
Active System type
Bi-Amp. with analog processor
Bi-Amp. with analog processor
LOW - RMS Output Power
150W RMS Class AB
70W RMS Class AB
HIGH - RMS Output Power
50W RMS Class AB
50W RMS Class AB
Max SPL at 1m
118.5dB SPL calculated
115.5dB SPL calculated
Frequency Response
55Hz / 20kHz +/-10dB
60Hz / 20kHz +/-10dB
Impedance Low - High
Low 4 Ohm - High 8 Ohm
Low 4 Ohm - High 8 Ohm
Crossover Frequency
2500Hz
6 / 12dB/Oct.
3000Hz 6 / 12dB/Oct.
Protection Low - High
Analog Limiter / Compressor
Analog Limiter / Compressor
Low - Frequency
12" / 318mm - 2" voice coil
12" / 318mm - 2" voice coil
High - Frequency
Aluminum Driver 1" Voice Coil
Aluminum Driver 1" Voice Coil
Horn Coverage H x V
90 H x45 V
Input Sensitivity
Line + 4dB / 1.23 V
Input Impedance
30k Balanced -15k Unbalanced
Connectors
Input with Jack / Link with XLR
Input with Jack / Link with XLR
Plastic Reinforced Cabinet
Trapezoidal & Monitor shape
Hardware Suspension
Six suspension point
Amplifier Protections
Soft Start - Short Circuit - DC voltage - Thermal Protection
External Control
Volume- Clip - Ground Switch
Volume- Clip - Ground Switch
Power Supply
230Volt / 115Volt
50 / 60Hz
Dimensions H W D
Net Weight lbs/kg
19.40kg / 42.76lbs
19.2kg / 42.32lbs
Gross Weight lbs/kg
22.05kg / 48.61lbs
21.85kg / 47.17lbs
Shipping Volume
4.83CFT
4.83CFT
Descriptions
PS4L Passive
PS3 Passive
Passive System type
2-way vented box
2-way vented box
Continuos Power Handling
180Watt AES Standard
120Watt AES Standard
Peak Power Rating
Peak
360Watt
Peak
240Watt Peak
Sensitivity at 1W,1mt
96 dB SPL
95 dB SPL
Max SPL at 1mt
118.5 dB SPL Calculated
Frequency Response
60Hz / 20kHz +/-10dB
Impedance
8 Ohm Nominal
Crossover Frequency
2250Hz 6 / 12dB/Oct
Low - Frequency
12" / 318mm - 2" voice coil
High - Frequency
Driver 1" Voice Coil
High Frequency Protection
Electronic Dynamic Protection
Dimensions HxWxD
660mm x396mmx 384mm (26" x15.6" x15.1")
Net Weight lbs/kg
17.12kg / 37.74lbs
Gross Weight lbs/kg
22kg / 48.5lbs
Volume
PS4HA Active
Bi-Amp. with DSP processor
300Watt RMS Class H
100Watt RMS Class AB
121.5dB SPL calculated
50Hz / 20kHz +/-10dB
Low 4 Ohm - High 8 Ohm
2000Hz - DSP Processor
DSP Lim./ Comp. each sections
12" / 318mm - 2.5" voice coil
Titanium Driver 1.35" Voice Coil
Input with Combo/ Link with XLR
Mic/Line Vol.-Clip-Ground Switch.
660mm
396mm
384mm (26"
15.6"
15.1")
23.38kg / 51.54lbs
26.06kg / 57.38lbs
4.83CFT
PS4H Passive
2-way vented box
250Watt AES Standard
500Watt
97 dB SPL
121 dB SPL Calculated
55Hz / 20kHz +/-10dB
8 Ohm Nominal
2000Hz 12 / 24dB/Oct
12" / 318mm - 2.5" voice coil
Titanium Driver 1.35" Voice Coil
Electronic Dynamic Protection
18.75kg /41.34lbs
22kg / 48.5lbs
4.83CFT
4.83CFT
115 dB SPL Calculated
65Hz / 20kHz +/-10dB
8 Ohm Nominal
3000Hz 6 / 12dB/Oct
12" / 318mm - 2" voice coil
Driver 1" Voice Coil
Electronic Dynamic Protection
17.3kg / 38.13lbs
19.95kg / 43.98lbs
4.83CFT
Shipping
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 continuously 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
equivalent power amplifier for the same value of impedance.