M14D
DATASHEET
M14D
High Efficiency 2 Channels Amplifier for Professional Applications
PRODUCT DESCRIPTION
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The Powersoft M14D is a professional power amplifier
designed to meet the most stringent requirements of
professional users in sound reinforcement and
professional fixed installations.
Designed by Powersoft R&D team the M14D is
exclusively built in Italy with internal components
selected for premium quality and proven durability.
Each modular subassembly is pre-tested, and the
assembled M14D receives a rigorous test for total
quality control.
Powersoft bridgeable switch mode fixed frequency
class D patented outputs provide high quality sound,
outstanding damping factor and cooler circuits for stable
performances over time and longer amplifier life.
Optional plug-in DSP externally programmable with 2
inputs and 3 outputs.
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Optional TU4 one rack unit 4 channel transformer
output module for constant voltage used.
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The Powersoft M14D is CE approved, CSA and CCC
pending.
M14D FEATURES
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Switch mode power supply with 115/230V
selectable range and up to 290V tolerant
Fixed frequency switch mode output
Patented output filter with ripple cancellation
network
Comprehensive front panel indicators
Neutrik© XLR balanced inputs with loop thru XLR
and Speakon© outputs connectors
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Fully protected circuit design with:
¾ AC protection: shut down power supply when
AC mains voltage is outside operating range
¾ Clip limiter: prevents severely clipped
waveforms from reaching loudspeakers, while
still maintaining full peak power output
¾ DC protection: protects against infrasonic
signal at the outputs
¾ VHF protections: protects the loudspeakers
against non audible, strong, non musical very
high frequency signals
¾ Short circuit protection: protects the amplifier
from short circuit or other stressful events for
the output circuits with automatic protection
reset
¾ Thermal protection: when output devices reach
75°C (167°F) amplifier shut down outputs, they
will unmute automatically when temperature
will reach 65°C (149°F)
¾ Long term limiter: protects the loudspeaker
against steady long term rms (non audio)
signals reducing maximum output.
Temperature controlled continuous variable speed
fan, front to back airflow
Optional plug-in DSP with 24bit/48KHz AD/DA
converters, 26 bit inner processing; 2 inputs, 3
outputs; 7 biquad (general Butterworth, Bessel,
peaking, shelving, arbitrary IIR) filters per channel
for HPF, LPF and system equalization; dual
dynamic processor per channel, with arbitrary
input/output curve and adjustable time constants;
mixed balanced output for subwoofer drive with
12/24dB oct programmable slope and cut-off; 0 –
3.7ms variable delay per channel for speaker
alignment; 105 dBA in/out (analog to analog) signal
to noise ratio; 1.5 ms processing delay time.
Recessed stepped attenuators
Detachable AC mains cable with IEC 16A socket
Modular construction
Full three years warranty
POWER SPECIFICATIONS
8 Ω Stereo
4 Ω Stereo
2 Ω Stereo
8 Ω Bridged
4 Ω Bridged
EIAJ test, 1 kHz, 1% THD
2 x 360 W
2 x 700 W
NA
1 x 1400 W
NA
M14D_DATASHEET_0210_EN
www.powersoft-audio.com
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M14D
Datasheet
GENERAL SPECIFICATIONS
Power requirements
Idle power
AC 115/230V (+15/-25%) internally switchable, 50/60 Hz, 290V tolerant
Consumption
Thermal emission (1/8 power @ 4 Ω)
Thermal emission (1/4 power @ 4 Ω)
Cooling
Environmental operating temperature
Construction
External dimensions
Net Weight-Shipping Weight
36W (0,33A @ 230V / 0,66A @ 115V)
262 VA, 1,14A @ 230V, 2,28A @ 115V (1/8 max output power @ 4 Ohm)
481 VA, 2,09A @ 230V, 4,18A @ 115V (1/4 max output power @ 4 Ohm)
268 BTU/Hour
417 BTU/Hour
Temperature controlled continuous variable speed fan, front to rear airflow
0°-45° C (32°-113° F)
1 mm (0,04 in) steel chassis, 3 mm (0,12 in) steel front panel, 3 mm (0,12 in) screw hole protection, 3 mm
(0,12 in) steel side reinforcement & rear support, 3 mm (0,12 in) steel removable dust cover
1 standard rack unit, 358mm deep (14,1 in)
7,4 Kg (16,3 Lbs) – 8,9 Kg (19,6 Lbs)
FRONT & REAR PANEL SPECIFICATIONS
Balanced Neutrik© XLR with positive on pin 2+, loop thru on XLR connectors that can be assigned with
deep switches as DSP subwoofer outputs
Neutrik© Speakon© NL4MD (1+1- stereo, 2+2- bridge)
Front panel push on/push off mains power switch
Green for signal (-24dBV) for each channel, white for amplifier ready and yellow for amplifier thermal
protection, 3 led meter (2 green, 1 red) per channel output meter
One per channel from –∞ to 0 (-∞, 4, 14, 18, 24, 22, 24, 26, 28, 30, 32 dB) stepped attenuators
IEC 16A on rear panel with cable retention system
IEC16A/Schuko for EU, IEC16A/American 15A 3 pin plug
Rear panel link switch to connect input channel 1 to input channel 2
Input connectors
Output connectors
Power switch
LED indicators
Attenuators
Power connector
Power cable
Link switch
AUDIO SPECIFICATIONS
Input impedance
Input sensitivity @ 8Ω
Gain
Frequency response
S/N ratio
Crosstalk
10 KΩ, balanced
1,34 V / 4,76 dBu
32dB / X40
5Hz-30KHz (+/-3dB) for 1W @ 8Ω
> 113 dB/A (20-20K Hz A weighted)
>70 dB @ 1 KHz
Slew Rate @ 8 Ω
Damping factor
THD+N
SMPTE IMD
DIM100 IMD
Max Output Voltage
40V/μs input filter bypassed
>5000 @ 100 Hz
<0,5% from 0,1W to full power (typically <0,05%)
<0,5% from 0,1W to full power (typically <0,05%)
<0,02% from 0,1W to full power (typically <0,005%)
85 V peak
Powersoft reserves the right to make improvements in manufacturing or
design which may affect product specifications.
Powersoft S.r.l.
Via Enrico Conti, 5 Scandicci (FI) – Italy
TEL: +39 055 7350230
FAX: +39 055 7356235
sales-audio@powersoft.it
M14D_DATASHEET_0210_EN
www.powersoft-audio.com
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