FP410 Automatic 4-Channel Mixer

CUSTOMER NOTE : This product has been discontinued.

For more information, please contact Product Support.

The FP410 uses Shure IntelliMix® to dramatically improve audio quality by providing greater gain-before-feedback, reducing the pickup of ambient noise and reverberation, and virtually eliminating comb filtering effects. IntelliMix combines three key features: NOISE-ADAPTIVE THRESHOLD activates a microphone for speech but not for constant room noise; MAXBUS limits the number of activated microphones to one per talker; LAST MICROPHONE LOCK-ON keeps the most recently activated microphone open until a newly activated microphone takes its place.


Primary applications include video production, broadcast, conference recording, and field production. One rack space high, accessory rack ears supplied. Battery (two standard 9-volt alkaline) or 120/230 Vac power.

 

Discontinued.  A battery-operated, portable automatic mixer. Remarkable audio quality and reduced ambient noise. Can be switched to manual operation. 
  • Reliable, quick-acting, noise-free microphone selection automatically adjusts to changes in background room noise
  • Front-panel channel gain andmaster controls operate as in conventional mixers
  • Selectable hold time keeps microphones on during short pauses in speech
  • Selectable Off-Attenuation control for seamless operation
  • Automatic gain adjustment as additional microphones are activated
  • Defeatable “LastMic Lock-On” circuit keeps at least one microphone on at all times--maintains acoustic ambiance and prevents confusing background sound changes
  • Wide, flat frequency response and low distortion up +18 dBm output
  • Linking capability for systems containing over 25 mixers and over 100 microphones
  • LED indication of microphone channel mix levels, output level, and limiter action
  • Automatic muting prevents annoying thumps and loudspeaker damage when unit is turned on and off
  • Transformer-balanced inputs and outputs switchable to line- or microphone-level
  • Separate monitor input and tape output (aux-level) jacks
  • Front-panel headphone monitor jacks with level control
  • Front-panel auto-disable switch for manual operation
  • Operates from ac mains voltage or two 9 V batteries
  • Switchable 14 V and 48 V phantom powering for condenser microphones
  • Underwriters Laboratories Listed and Canadian Standards Association listed as Certified (FP410 only)
Measurement Conditions (unless otherwise specified):
Line voltage 120 Vac, 60 Hz (FP410E: 230 Vac, 50/60 Hz); full gain; 1 kHz, one channel activated; output terminations: Line 600 ohms Mic 150 ohms, Tape 50 kilohms, Phones 200 ohms tip- sleeve and ring-sleeve); Auto mode\
 
Frequency Response (controls centered)
25 Hz to 20 kHz, +0.5, -2 dB (any input to any output)
 
Voltage Gain
Input Output
Line Mic Headphone Tape
Low-Impedance
Mic (150 ohms)		 93 dB 43 dB 97 dB 74 dB
Line 42 dB -8 dB 46 dB 23 dB
Monitor -- -- 9 dB --
 
Inputs
Input Impedance Input
Clipping Level
Designed
for use with		 Actual
(Internal)
Mic 19-600 ohms 900 ohms -15 dBV
Line <10 kilohms 66 kilohms To >+26 dBV
Monitor <1 kilohm 45 kilohms +21 dBV
 
Outputs
Output Impedance Output
Clipping Level
Designed
for use with		 Actual
(Internal)
Mic Any low-impedance
mic inpuat		 0.5 ohms -31 dBV
(28 mV) min.
Tape >10 kilohms 1 kilohms -2 dBV
(800 mV)
Headphones 8-200 ohms
200 ohms
recommended		 500 ohms +6 dBV
(2.0 V)
Line 600 ohms 100 ohms +19 dBm
(6.9 V) min.
 
Total Harmonic Distortion (controls centered [5], +4 dBm at Line output)
<0.25%, 50 Hz to 20 kHz
 
Hum and Noise
Equivalent Input Noise: -128.5 dBV
Equivalent Input Hum and Noise: -128.5 dBV
Output Noise (300 Hz to 20 kHz; channel controls full counterclockwise)
Master full counterclockwise : -88 dBV
Master full clockwise: -71 dBV
Output Hum and Noise (20 Hz to 20 kHz; channel controls full counterclockwise)
Master full counterclockwise: -74 dBV
Master full clockwise: -70 dBV
 
Common Mode Rejection
65 dB minimum with input of -20 dBV at 100 Hz
 
Polarity
Pin 2 of balanced inputs and outputs are in phase with tip connections of unbalanced inputs and outputs
 
Input Channel Activation
Attack Time: 4 msec
Hold Time: 0.4 sec (switchable to 1.0 sec)
Decay Time: 0.5 sec
 
Off- Attenuation
13 dB, fixed (switchable to infinity)(single mixer; attenuation increases as additional mixers are linked)
 
Overload and Shorting Protection
Shorting outputs, even for prolonged periods, causes no damage. Microphone inputs are not damaged by signals up to 3 V; Line and Monitor inputs by signals up to 20 V
 
Low- Cut Filters
6 dB/octave rolloff below 170 Hz
 
Limiter
Threshold: +16 dBm (switchable to +8, +4, 0 dBm)
Attack Time: 3 msec
Recovery Time: 350 msec
Indicator: Lights when limiting is occurring
 
Meter
VU Meter Calibration: 0 VU = +4 dBm (switchable to +8 dBm)
Peak Meter:
Rise Time: 2.0 msec time constant (0.9 msec/LED step)
Decay Time: 180 msec time constant (83 msec/LED step)
 
Tone Oscillator
1 kHz, +/- 10%, THD <0.5%
 
Phantom Power
14 Vdc open-circuit, 1 kilohm series resistance, input switches in Mic position only (internally switchable to 48 Vdc, 4.5 kilohm series resistance)
 
Operating Voltage
AC Operation:
100 to 120 Vac rated nominal, 80 to 132 Vac fully operational (FP410); 230 Vac rated nominal, 160 to 264 Vac fully operational (FP410E), 50/60 Hz, 8 W
DC Operation:
18 Vdc nominal at 25 mA typical no-signal, 33 mA typical at 0 VU (+4 dBm) output with 600 ohm load; 6 Vdc minimum; battery life approximately 12 hours with alkaline batteries at +4 dBm output in continuous use at room temperature; two 9- volt batteries (type NEDA 1604A)
 
Temperature Range
Operating: -18 to 57 degrees C (0 to 135 degrees F )
Storage: -29 to 71 degrees C (-20 to 160 degrees F)
 
Overall Dimensions
44.5 mm H x 368 mm W x 210 mm D (13/4 x 141/2 x 81/4 inches)(not including feet)
 
Net Weight
2.27 kg (5 lb)

Release 38