Download M•1400/M•1400i High Current Power Amplifier Spec

M•1400/M•1400i
High-Current Power Amplifier
 The Mackie M•1400/M•1400i is a dual channel, high
output power amplifier that incorporates a number of
unique features including FR “Fast Recovery” design,
high continuous-current output, built-in subwoofer
crossovers, and a T-Design constant-gradient cooling
tunnel for improved cooling efficiency and output device
reliability.
 The M•1400/M•1400i is rated at a continuous output of 250 watts per channel into 8Ω, 425 watts per
channel into 4Ω and 630 watts into 2Ω. In bridge mode
the M•1400/M•1400i is rated at 850 watts into 8Ω
and 1260 watts into 4Ω. Variable low-cut filters on
each channel, with a range from off to 170Hz, enable
tighter bass response and a Constant Directivity Horn
EQ improves high-frequency reproduction. The CD Horn
EQ is 6 dB/octave and its “knee” position is sweepable
from 2kHz to 6kHz. The built-in limiter is channel
independent and helps eliminate clipping. Inputs are
balanced/unbalanced 1/4" and XLR, and XLR thru connectors allow the full-range signal to be routed to another
M•1400/M•1400i. Speaker connections on the M•1400
are Speakon® and binding posts, while speaker connections on the M•1400i are 1/4" and binding posts.
 To effectively deal with clipping, an amplifier must
be able to recover almost instantaneously. That is the
definition of “Fast Recovery”. Rather than using negative feedback to help control clipping distortion, the
M•1400/M•1400i employs a very sparse amount of
negative feedback. The use of Baker Clamp circuits on
the positive and negative voltage amp stages prevents
saturation (and latching) during periods of overdrive. In
addition, a transistor senses when the Baker Clamp is
active and activates the internal limiting circuits. This
results in no latching, instant recovery from overdriving
the amp, and a superior sound.
M•1400/M•1400i AMPLIFIER
M•1400/M•1400i
Features
 1400 watts max, 1260 watts continuous @ 4 ohms
bridged
 Ultra-low-noise/low-distortion design
 Fast Recovery circuitry reduces distortion at clipping
 Two 2nd order, 12 dB/octave, Bessel low-cut filters with
variable frequency from Off to 170Hz
 Constant directivity horn EQ/Air EQ with variable
frequency from 2kHz to 6kHz and on/off switch
 Limiter with on/off switch
 Balanced/unbalanced 1/4" and XLR inputs
 XLR thru outputs
 1/4" jacks (M•1400i) or Speakon® (M•1400) connectors
and 5-way binding post outputs (both models)
 Detented gain controls calibrated in dB and volts
 Signal present and OL LEDs
 Channel Status LEDs
 Superior T-Design cooling
 Five-year, limited warranty (U.S. only)
(continued on page 8)
R E LA TE D PR O D U C TS
M•800 Power Amplifier, 1202-VLZ PRO 12-Channel
Mic/Line Mixer, 1402-VLZ PRO 14-Channel Mic/Line
Mixer, 1604 VLZ PRO 16-Channel Mic/Line Mixer,
1642-VLZ PRO 16-Channel Mic/Line Mixer, SR24•4VLZ PRO 24 Channel Mic/Line Mixer, SR32•4-VLZ PRO
32 Channel Mic/Line Mixer, CFX Series 12, 16, and 20
Channel Mic/Line Mixer w/Digital Effects, C300z 2-Way
Loudspeaker, C200 2-Way Loudspeaker, SWA1501 and
SWA1801 Active Subwoofers.
Applications
 Live sound/music reinforcement for churches,
clubs, schools, conference centers, hotels
 High level A/V playback
 Large speech systems
1
OF 8 PAGES
M•1400/M•1400i AMPLIFIER
M•1400/M•1400i
High-Current Power Amplifier
M•1400/1400i Specifications
Maximum Power at 1% THD:
300 watts per channel into 8 ohms
500 watts per channel into 4 ohms
700 watts per channel into 2 ohms
1000 watts into 8 ohms bridged
1400 watts into 4 ohms bridged
Continuous Sine Wave Average Output Power, both
channels driven:
250 watts per channel into 8 ohms from 20Hz to 20kHz, with
no more than 0.012% THD
425 watts per channel into 4 ohms from 20Hz to 20kHz, with
no more than 0.025% THD
630 watts per channel into 2 ohms from 20Hz to 20kHz, with
no more than 0.050% THD
Maximum Input Level:
9.75 volts (+22 dBu)
Rise Time:
<4.4µs
Slew Rate:
Voltage Slew Rate
>50V/µs
>100V/µs bridged
>32A/µs at 2Ω
Current Slew Rate
CMRR:
>40 dB, 20Hz to 20kHz
Transient Recovery:
1µs for 20 dB overdrive at 1kHz
Bridged Mono Operation:
850 watts into 8 ohms from 20Hz to 20kHz, with no more than
0.025% THD
1260 watts into 4 ohms from 20Hz to 20kHz, with no more
than 0.050% THD
High Frequency Overload and Latching:
No latch up to any frequency or level
Power Bandwidth:
20Hz to 70kHz (+0, –3 dB)
Subwoofer Low-Pass Filter:
Switched: 63Hz/125Hz, 3rd Order Bessel
Frequency Response:
20Hz to 40kHz (+0, –1 dB)
10Hz to 70kHz (+0, –3 dB)
Constant Directivity High-Frequency Boost:
2kHz to 6kHz (+3 dB points)
6 dB/octave high-frequency shelving filter, (shelving occurs at
approximately 30kHz)
Distortion:
THD, SMPTE IMD, TIM
<0.025% @ 8Ω
<0.050% @ 4Ω
<0.150% @ 2Ω
Signal to Noise Ratio
>107 dB below rated power into 4 ohms
Channel Separation:
>80 dB @ 1kHz
Damping Factor:
>350 from 0 to 400Hz
Input Impedance:
20kΩ balanced bridging
Input Sensitivity:
1.23 (+4 dBu) for rated power into 4 ohms
Voltage Gain:
30.25 dB (32.5V/V)
Variable Low-Cut Filter:
10Hz (Off) to 170Hz, 2nd Order Bessel
Limiter Section:
Complementary Positive and Negative Peak Detecting
Indicators:
6 meter LEDs per channel
SIG (Signal Present), –20, –9, –6, –3, OL (Overload)
PROTECT LEDs, CH1 & 2
SHORT LEDs, CH1 & 2
TEMP STATUS
COLD/HOT LEDs
Power Consumption:
65 watts (0.9A)
at idle
550 watts (6.7A)
with musical program fully loaded
(4 ohms per side, or 8 ohms bridged)
900 watts (10.5A)
with musical program fully loaded
(2 ohms per side, or 4 ohms bridged)
850 watts (9.6A)
at full power into 8 ohms
(continuous sine wave)
1500 watts (15.6A) at full power into 4 ohms
(continuous sine wave)
2500 watts (24.8A) at full power into 2 ohms
(continuous sine wave)
(continued on page 3)
2
OF 8 PAGES
M•1400/M•1400i
AC Line Power:
US (M•1400 and M•1400i)
Europe (M•1400 only)
Japan (M•1400 only)
Korea (M•1400 only)
High-Current Power Amplifier
Physical:
Height
Width
Depth
Overall Depth
Weight
120 VAC, 60Hz
240 VAC, 50/60Hz
100 VAC, 50/60Hz
220 VAC, 60Hz
AC Drop-out Voltage:
At approximately 63% of rated line voltage
3.50" (89 mm)
19.00" (483 mm)
15.25" (387 mm)
16.38" (416 mm)
36 lbs (16.3 kg)
16.38" (41.6cm)
15.25" (38.7cm)
17.25" (43.8cm)
GAIN/dB
3v
18
20
22
16
24
14
2v
26
28
0
0
8
SENSITIVITY
OL
OL
–3
–3
–6
–6
–9
–9
–20
–20
30
1v
1.23v (+4dBu)
GAIN/dB
SIG
SIG
CH
3v
18
20
22
16
24
14
2v
2
28
8
SENSITIVITY
30
1v
1.23v (+4dBu)
CH
CH
2
1
ON
INTERNAL STATUS
PROTECT
26
0
0
CH
1
3.50"
(8.9cm)
2U
PROFESSIONAL POWER AMPLIFIER
FULL SYMMETRY DUAL DIFFERENTIAL HIGH CURRENT DESIGN
SHORT
OFF
TEMP STATUS
COLD
CH
1& 2
HOT
POWER
19.00" (48.3cm)
3
OF 8 PAGES
MACKIE DESIGNS
M•1400i
BLOCK DIAGRAM
(#022598DF)
CH 2
BALANCED
LINE INPUT
(TRS)
THRU
(XLR-M)
CH 2
BALANCED
LINE INPUT
(XLR-F)
CH 1
BALANCED
LINE INPUT
(TRS)
THRU
(XLR-M)
CH 1
BALANCED
LINE INPUT
(XLR-F)
FUSE
LOW CUT
FILTER
FREQ
LOW CUT
FILTER
FREQ
TO CH 1
AND CH 2
MUTE
LAMP
POWER
SWITCH
OFF
ON
CD EQ
FREQ
OFF
ON
CD EQ
FREQ
THERMAL
PROTECT
TOROIDAL POWER
TRANSFORMER
SIG
(TO CH 2
METER DRIVE)
SIG
(TO CH 1
METER DRIVE)
+
80 VDC
–
PD's LEASH
LOW PASS
FILTER
(SUBWOOFER)
63 Hz
125 Hz
FREQ
ON
OFF
SUB
TEMP
SENSOR
(ON HEATSINK)
+
90 VDC
–
NC
NC
TO
LIMITER
ON
OFF
SUB
OUTPUT
APPLICATION
SWITCH
AMP
MODE
SWITCH
4
COLD
LED
FROM CH 2
SHORT DETECT
FROM CH 1
SHORT DETECT
HOT
LED
80ºC MUTE
55ºC UNMUTE
CH 1 AMP OUT
CH 2 AMP OUT
CH 2
GAIN
STEREO
MONO
NC BRIDGE
INVERTING
UNITY GAIN
AMPLIFIER
CH 1
GAIN
PROGRAM
DETECT
60ºC
DETECTOR
CH 2
MUTE
CONTROL
CH 1
MUTE
MUTE
TO CH 1
MUTE
CH 2
MUTE
MUTE
CH 2
PROTECT
LED
AND
4 SEC DELAY
(TURN-ON)
CH 1
MUTE
CONTROL
LIMITER
LIMITER
FUSE
TO CH 2
MUTE
LO DCV
FAN
SPEED
CONTROL
POWER
AMPLIFIER
FUSE
TO CH 2
MUTE
FUSE
POWER
AMPLIFIER
FUSE
HI DCV
OR
–80VDC
+80VDC
–80VDC
+80VDC
TO CH 1
MUTE
DC OFFSET
DETECT
SHORT
DETECT
FAN
CH 2
SHORT
LED
DC OFFSET
DETECT
SHORT
DETECT
CH 2
SIG
CH 1
SIG
METER
DRIVE
METER
DRIVE
CH 2
SPEAKER
OUT
OL
–3
–6
–9
–20
SIG
CH 1
SPEAKER
OUT
OL
–3
–6
–9
–20
SIG
M•1400/M•1400i
Block Diagram
CH 1
PROTECT
LED
CH 1
SHORT
LED
M•1400/M•1400i
High-Current Power Amplifier
OF 8 PAGES
M•1400/M•1400i
High-Current Power Amplifier
M•1400/M•1400i Front Panel
PROFESSIONAL POWER AMPLIFIER
FULL SYMMETRY DUAL DIFFERENTIAL HIGH CURRENT DESIGN
GAIN/dB
CH
1
3v
20
18
22
16
24
14
2v
26
OL
–3
–3
–6
–6
–9
–9
GAIN/dB
24
1.23v (+4dBu)
SIG
CH
2
1
ON
INTERNAL STATUS
PROTECT
SHORT
OFF
TEMP STATUS
28
8
SENSITIVITY
SIG
2v
26
30
1v
0
0
0
0
22
14
30
1v
SENSITIVITY
20
CH
CH
2
3v
18
16
–20
–20
28
8
OL
COLD
1.23v (+4dBu)
CH
1& 2
HOT
POWER
M•1400i Rear Panel
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
CAUTI ON
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER.
NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
AVIS: RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR
RISK OF ELECTRIC SHOCK
DO NOT OPEN
SERIAL NUMBER
MANUFACTURING DATE
1 CHANNEL
(STEREO)
500 W/500 W
4 OHM LOAD
+
OUTPUTS
SUITABLE
FOR CLASS
2 WIRING
MONO
BRIDGE
CH
+
+
–
–
TYPICAL
35 Hz
4.5 kHz
2k Hz
6k Hz
125Hz
THRU
4.5k Hz
ON
63Hz
ON OFF
OFF
TYPICAL
AIR EQ
SPEAKER OUTPUTS
CONSTANT DIRECTIVITY
HORN EQ /AIR EQ
FREQUENCY
STEREO
TYPICAL
ON
100 Hz
170 Hz
OFF
SUB
WOOFER
FULL
RANGE
LIMITER (CH1 & CH2)
CONSTANT DIRECTIVITY
HORN EQ /AIR EQ
120 VAC 60 Hz
1000 WATTS
LOW CUT
FILTER
BALANCED
OR
UNBALANCED
STAGE
MONITOR
170 Hz
OFF
OUTPUTS
SUITABLE
FOR CLASS
2 WIRING
2
CHANNEL
INPUT
BRIDGE
OUTPUT APPLICATION
100 Hz
2
MONO
(CHS SUMMED)
STEREO
TYPICAL
STAGE
MONITOR
–
CH
1
INPUT
BALANCED
OR
UNBALANCED
TYPICAL
35 Hz
THE FOLLOWING ARE TRADEMARKS AND REGISTERED TRADEMARKS OF MACKIE DESIGN INC.: "MACKIE", "FR SERIES", AND THE "RUNNING MAN" FIGURE
(MONO BRIDGE)
1000 WATTS
8 OHM LOAD
AMP MODE
/ BRIDGE / MONO
LOW CUT
FILTER
CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE • WA
98072 • USA • MADE IN USA • FABRIQUE AU USA • PATENTS PENDING • COPYRIGHT ©1997
OFF
TYPICAL
2k Hz
6k Hz
AIR EQ
THRU
M•1400 Rear Panel
WARNING:
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER.
NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
SERIAL NUMBER
MANUFACTURING DATE
AVIS: RISCQUE DE CHOC ÉLECTRIQUE — NE PAS OUVRIR
1 CHANNEL
(MONO BRIDGE)
1000 WATTS
OUTPUTS
8 OHM LOAD
SUITABLE
(STEREO)
FOR CLASS
500 W / 500 W
2 WIRING
4 OHM LOAD
+
1
MONO
BRIDGE
+
–
–
OUTPUTS
SUITABLE
FOR CLASS
2 WIRING
MONO
STEREO
TYPICAL
CHANNEL
INPUT
BRIDGE
LOW CUT
FILTER
BALANCED
OR
UNBALANCED
STAGE
MONITOR
OUTPUT APPLICATION
100 Hz
170 Hz
OFF
FULL
RANGE
LIMITER (CH1 & CH2)
CONSTANT DIRECTIVITY
HORN EQ /AIR EQ
4.5 kHz
6k Hz
AIR EQ
EQ
2
TYPICAL
35 Hz
STAGE
MONITOR
2k Hz
SPEAKER OUTPUTS
OF 8 PAGES
2
+
120 VAC 50/60 Hz
1500 WATTS
5
CH
–
INPUT
BALANCED
OR
UNBALANCED
TYPICAL
35 Hz
THE FOLLOWING ARE TRADEMARKS AND REGISTERED TRADEMARKS OF MACKIE DESIGN INC.: "MACKIE", "FR SERIES", AND THE "RUNNING MAN" FIGURE
CH
AMP MODE
/ BRIDGE / MONO
LOW CUT
FILTER
CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE • WA
98072 • USA • MADE IN USA • FABRIQUE AU USA • PATENTS PENDING • COPYRIGHT ©1997
STEREO
TYPICAL
ON
ON OFF
OFF
TYPICAL
THRU
100 Hz
170 Hz
OFF
SUB
WOOFER
CONSTANT DIRECTIVITY
HORN EQ /AIR EQ
FREQUENCY
125Hz
ON
63Hz
OFF
TYPICAL
THRU
4.5k Hz
2k Hz
6k Hz
AIR EQ
AIR