Mackie FR Series M.1400, FR M.1400i Specifications
M•1400/M•1400i
M•1400/M•1400i
The Mackie M•1400/M•1400i is a dual channel, high
output power amplier 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 efciency and output device
reliability.
The M•1400/M•1400i is rated at a continuous out-
put 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 lters 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 amplier must
be able to recover almost instantaneously. That is the
denition 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.
(continued on page 8)
High-Current Power Amplier
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 lters 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)
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)
connectors
AMPLIFIER
M•1400/M•1400i
R E L A T E D P R O D U C T S
M•800 Power Amplier, 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•4-
VLZ 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
O F 8 P A G E S
1
M•1400/M•1400i
M•1400/1400i Specications
AMPLIFIER
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
M•1400/M•1400i
no more than 0.025% THD
630 watts per channel into 2 ohms from 20Hz to 20kHz, with
no more than 0.050% THD
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
Power Bandwidth:
20Hz to 70kHz (+0, –3 dB)
Frequency Response:
20Hz to 40kHz (+0, –1 dB)
10Hz to 70kHz (+0, –3 dB)
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)
High-Current Power Amplier
Maximum Input Level:
9.75 volts (+22 dBu)
Rise Time:
<4.4µs
Slew Rate:
Voltage Slew Rate >50V/µs
>100V/µs bridged
Current Slew Rate >32A/µs at 2Ω
CMRR:
>40 dB, 20Hz to 20kHz
Transient Recovery:
1µs for 20 dB overdrive at 1kHz
High Frequency Overload and Latching:
No latch up to any frequency or level
Variable Low-Cut Filter:
10Hz (Off) to 170Hz, 2nd Order Bessel
Subwoofer Low-Pass Filter:
Switched: 63Hz/125Hz, 3rd Order Bessel
Constant Directivity High-Frequency Boost:
2kHz to 6kHz (+3 dB points)
6 dB/octave high-frequency shelving lter, (shelving occurs at
approximately 30kHz)
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)
O F 8 P A G E S
2
M•1400/M•1400i
OL
–3
–6
–9
–2
0
–3
–6
–9
–2
0
SIGOLSIG
CH
1
30
28
26
20
22
18
2416
14
8
0
0
1.23v (+4dBu)
SENSITIVITY
GAIN/dB
CH
2
PROTECT
COLD HOT
SHORT
TEMP STATUS
INTERNAL STATUS
CH
1
CH
2
CH
1&
2
ON
OFF
POWER
3v
2v
1v
30
28
26
20
22
18
2416
14
8
0
0
1.23v (+4dBu)
SENSITIVITY
GAIN/dB
3v
2v
1v
PROFES SIONAL POWER AMPLIF IER
FULL SYMMETRY DUAL DIFFERENTIAL HIGH CURRENT DESIGN
19.00" (48.3cm)
17.25" (43.8cm)
15.25" (38.7cm)
3.50"
(8.9cm)
2U
16.38" (41.6cm)
High-Current Power Amplier
AC Line Power:
US (M•1400 and M•1400i) 120 VAC, 60Hz
Europe (M•1400 only) 240 VAC, 50/60Hz
Japan (M•1400 only) 100 VAC, 50/60Hz
Korea (M•1400 only) 220 VAC, 60Hz
AC Drop-out Voltage:
At approximately 63% of rated line voltage
Physical:
Height 3.50" (89 mm)
Width 19.00" (483 mm)
Depth 15.25" (387 mm)
Overall Depth 16.38" (416 mm)
Weight 36 lbs (16.3 kg)
3
O F 8 P A G E S
Loading...