Shure 53A8253 User's Guide

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The

Shure Model signed for use in a wide variety of applications. concept by

behind the FP410E. It delivers flawless automatic

combining three unique functions:

FP410E is an automatic microphone mixer de

multi–microphone speech pickup

Shure IntelliMix

•

Noise–Adaptive

•

MaxBus

•

Last Mic Lock–On

is the remarkable new operational

Threshold,

, and

mixing

Noise–Adaptive Threshold distinguishes between constant background sound tivation ground

noise (such as

air conditioning) and rapidly changing

(such as speech).This function continuously adjusts the ac

threshold so that only speech levels louder than the back sound will activate an FP410E channel.

MaxBus eliminates the poor audio quality that results when a talker is picked up by more than one microphone. It does this by controlling the number of microphones that may activate for a

sound source. With MaxBus, one talker will

single

activate only one FP410E channel, even if multiple microphones are “hearing” that talker.

Last Mic Lock–On maintains a seamless audio mix by keeping the most recently activated microphone open until a newly activated microphone takes its place. Without Last Mic Lock–On, a long pause in conversation may allow all microphones to turn off, and it may sound as if the audio signal has been lost. Last Mic Lock–On

ensures that background ambience will always be pres

ent.

Multiple miking situations—with a number of talkers participating—have too

few mics are used, the coverage of each talker may vary, with one Talkers as

very little of the direct sound from their mouths reaches the mi

always presented problems for the audio technician. If

talker (nearest the mic) being louder and clearer than the next.

farthest

from the mics will sound “echoey” and

reverberant,

crophones. If too many mics are used, there’s more background noise and reverberation pickup, as well as less gain before feed-

if a sound reinforcement (P

back

It’s

somewhat like

the

same subject. If these camera signals are combined, the result

having multiple video cameras all focused on

A) system is used.

is a blurred image. When multiple microphones are open for a single talker, the result is a blurred audio signal. But it’s often not practical

for someone to turn mics on when

they are needed and of when they are not. The answer is the FP410E automatic microphone

mixer

The FP410E automatically attenuates (turns down) any microphone not being used, greatly reducing the excess reverberation and feedback problems associated with the use of conventional

Shure

Brothers Incorporated

222 Hartrey A

venue

Evanston IL 60202-3696 U.S.A.

Model FP410 User Guide

multiple microphone and mixer techniques. When a new talker

to speak,

starts vates

the most appropriate microphone. signal processing enables the FP410E to provide clear, natural voice pickup. The FP410E significantly reduces the problems of “boomy” or “muddy” sound, insufficient sound level (because of feedback are

virtually eliminated because the FP410E needs no operator or technician for continual adjustment—once set up, it is self–sufficient.

The

FP410E has numerous applications in video production audio recording, broadcasting, and sound reinforcement. In any speech pickup application where multiple microphones are re-

the FP410E dramatically improves audio quality

quired, from manual to automatic operation allows an individual talker’s

to rise above

voice come

clearer and more intelligible.

Each

FP410E handles up to four microphones or line–level sig nals. Any high quality, low–impedance, balanced microphone using a dynamic or condenser* transducer (including wireless and shotgun terconnected eration

is also available using a front–panel selector switch..

The

FP410E is supplied with optional bumpers (feet) horizontal surfaces, a short cable for linking two FP410E mixers, and a rack–mounting kit for installation in a standard 483 mm (19–inch)

The

FP410E is supplied for 230 V

and

its line cord is terminated by a Schuko ac plug.

*Self–powered

Features

• Reliable,

matically

• Front–panel

ventional mixers

• Selectable

in speech

•

Selectable Of

• Automatic gain adjustment as additional microphones are acti-

vated

• Defeatable

phone on at all times—maintains acoustic ambiance and prevents

the FP410E immediately selects and silently acti

Shure IntelliMix

or “howling”), and operator errors. In fact, operator errors

the background noise and reverberation to be

types) can be used. Additional FP410E mixers can be in

using the rear–panel link jacks. Complete manual op

audio equipment rack..

ac operation (line fuse 0.05 A)

or operable on 14 or 48 Vdc phantom power

quick–acting, noise–free microphone selection––auto adjusts to changes in background room noise

channel gain

and master controls operate as in con

hold time keeps microphones on during short pauses

f–Attenuation control for seamless operation

“Last Mic Lock–On” circuit keeps at least one

confusing background sound changes

electronic

completely

and

. Switching

for use on

micro

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1996, Shure Brothers Inc.

27A8319

(PK)

Printed in U.S.A.

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MIC LINE MIC LINE MIC LINE MIC LINE MIC LINE MIC LINEPHANTOM

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MODEL

FIGURE 1

The

FP410E has numerous applications in video production

and

audio

recording, broadcasting, and sound reinforcement.

any speech

are

required, the FP410E dramatically

Switching

pickup application where multiple microphones

improves audio quality

from manual to automatic operation

allows an indi vidual talker’s voice to rise above the background noise and reverberation

Each

to become clearer and more intelligible.

FP410E handles up to four microphones or line–level signals. Any high quality, low–impedance, balanced microphone using a dynamic or condenser* transducer (including wireless mixers Complete

and shotgun types) can be used. Additional FP410E

can be interconnected using the rear–panel link

manual operation is also available using a

jacks.

front–pa

nel selector switch..

The

FP410E is supplied with optional bumpers (feet) for use on horizontal surfaces, a short cable for linking two FP410E mixers, and a rack–mounting kit for installation in a standard 483

mm (19–inch) audio equipment rack..

The FP410E is supplied for 230 Vac operation (line fuse

0.05

A) and its line cord is terminated by a Schuko ac plug.

*Self–powered

or operable on 14 or 48 Vdc phantom power

Features

•

Reliable, quick–acting, noise–free microphone selection–– automatically

• Front–panel

adjusts to changes in background room noise

channel gain and master controls operate as

conventional mixers

• Selectable hold time keeps microphones on during short

in speech

pauses

•

Selectable Of

f–Attenuation control for seamless operation

• Automatic gain adjustment as additional microphones are

activated

–24 –20 –16 –12 –8 –4 0 +4 +8 +12 +16

–20 –10 –7 –5 –3 –2 –1 0 +1 +2 +3

BATTERY TEST MANUAL AUDIO LIMITER IN

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100%

PEAK

PHONES

PULL FOR MONITOR

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FP410E

• Defeatable

crophone

prevents

• Wide, flat frequency response and low distortion up +18

dBm

“Last Mic Lock–On” circuit keeps at least one mi

on at all times—maintains

acoustic ambiance and

confusing background sound changes

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 loud-

speaker

damage when unit is turned on and of

• 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 or 48 V phantom powering for condenser

microphones

• VDE

Approved

monized with CENELEC HD 195 S6.

CONTROLS,

ure 1)

Microphone Channel Gain Controls crophone clockwise activates microphone channel and allows adjustment

Input Normal Green LED: Should flicker with normal speech levels.

channel is removed from operation. T

of microphone level.

for safety under DIN VDE 0860/05.89, har

CONNECT

ORS, INDICATORS

1–4

: At “0” position, mi

OFF ON

(See

Fig

urning control

U.S. Patent 4,658,425; other patents pending

Printed in U.S.A.

3. Input High Red LED: Should flicker only on loud speech peaks.

Flat (—)/Low–Cut (

cy rollof

f to reduce undesirable low–frequency signals such as

wind

noise.

5. MASTER bined input signals at Mic/Line, Tape and Phones outputs. PULL tor

(tone level is determined by Master control setting). Oscilla signal appears at all outputs. When oscillator is not in use,

tor knob

6. PEAK/VU adjacent ter indicates peak signal levels. In VU position, it indicates av erage

BATTERY TEST

7. junction with PEAK/VU Meter to indicate battery condition.With sition, new set of batteries lights all green LEDs. Number of green LEDs lit indicates approximate battery life remaining when flashing green

8. MANUAL/AUTO microphone ates as a conventional microphone mixer. In AUTO position, unused

LIMITER IN

9. ponding limiter circuit to cut overload distortion during loud program intervals without affecting normal program levels. The

red limiter LED indicates limiting action.

10. PHONES toring mixer output through most stereo or mono headphones. PULL FOR MONITOR switch applies signal from rear–panel MON IN 3.5 mm phone jack to headphones amplifier. When switch is activated, mixer output signal does not appear in headphones output. PHONES rotary control determines headphone

11. POWER circuitry. in

battery operation, flashes when total

to 10 Vdc..

12. 230 V nection

13. OUTPUT one

or two amplifiers, recorders or other mixers. Output levels are individually switchable to Line level or low–impedance Mic level by adjacent individual MIC/LINE slide switches. are electrically isolated.

14. T feed

unbalanced aux–level inputs of most tape recorders and

amplifiers.

Rotary Control: Determines

FOR 1 kHz T

should be pushed in.

Output Level Meter: Meter function

PEAK/VU slide switch. In PEAK switch position, me

signal levels, simulating a true VU meter

POWER switch on and switch

alkaline batteries are used. N

when total battery supply voltage drops to 10 Vdc (one

LED lit).

operating mode. In MANUAL

microphones automatically turn of

1/4–inch and 3.5

level in either case.

Slide Switch: Applies ac

Adjacent green LED indicates

AC, 50/60 Hz 8W

to 230 V

3–Pin Male XLR Connectors: For connection to

Both

APE OUT

) Slide Switches: Provide

ONE position activates 1 kHz tone oscilla

Momentary Slide Switch: Operates in

in momentary–on po

OTE:

Slide Switch: Selects manual or automatic

Slide Switch: Activates fast–acting, peak–res

mm Phone Jacks: Permit moni

or battery power to mixer

power–on status and,

battery voltage drops

3–Pin Power Connector: For con

ac, 50/60 Hz power outlets.

jacks provide the same signal information but

3.5 mm Phone Jack: Provides output signal to

low–frequen

the level of the com

is selected by

con

POWER LED

position, unit oper

begins

signal

15. LINK IN/OUT 8–Pin miniature DIN Jacks: Using link cables, these jacks permit virtually unlimited number of FP410E mixers to be stacked to achieve additional input capacity.

Jacks carry

information.

16. MON IN level

source to headphones amplifier without interrupting other

mixer

functions. Jack is

FOR MONIT

17. PHANT 14 Vdc phantom power for condenser microphones to all inputs.

With

switch on and INPUT MIC/LINE switches in MIC po

+14 Vdc is applied to pins 2 and 3 of each input XLR con

sition, nector.

NOTE: Phantom power can be internally set

(see

Modifiable Functions

Shure

condenser microphones, verify that voltage and source

resistance

18. INPUT 1–4 Female 3–Pin XLR Connectors: Permit con- nection vel match source levels.

19. mote er

failure.

This product is not completely disconnected from the mains supply

requirements are compatible (see

to balanced, low–impedance microphones or line–le

sources. Adjacent MIC/LINE

Battery Compartment: Accepts two 9–volt

operation or as automatic backup in the event of ac pow

when the power switch is Of

INSTALLATION

audio signals, MaxBus and Last Mic Lock–

3.5 mm Phone Jack: Sends external Aux or Line–

activated by pulling front–panel PULL

OR knob outward.

OM ON/OFF

Slide Switch: Controls application of

to 48 Vdc

section). When using other than

Specifications)

slide switches adjust inputs to

batteries for re

PLEASE

AND OPERA

NOTE

TION

Mixer Installation

Install

the FP410E as follows. horizontal ners

If (19–inch) screws position at the sides (rack–mount holes facing forward), and secure the ears with the previously removed Phillips head screws. should access audio equipment rack and secure it with the four supplied rack– mount screws.

Make electrical connections as follows.

1. For battery operation, compress

battery

drawer from the compartment. Observing battery polarity

markings, insert two fresh 9–volt batteries in the drawer

slots.

to the right to determine battery condition. IMPORTANT:

Battery operating life is reduced when microphones are

phantom–powered—especially

ing. For ac operation, connect the power cord to a 230 V

50/60 Hz source.

2. Connect the

surface, attach the four supplied bumpers to the cor

of the chassis bottom to prevent marring the surface.

the FP410E is to be rack–mounted in a standard 483

audio equipment rack, remove the

from each FP410E

NOTE: The rack ears are asymmetrical; the

on your right (as you face the front panel) to permit

to the battery

equipment rack. Install the rack–mounted FP410E in the

drawer with thumb

With the Power switch on, slide the Battery T

the Mic Input connectors

compartment while the FP410E is in the

microphones and/or line–level signal sources

If the unit is to be placed on a

two Phillips head

side panel, place the rack “ears” in

wider

ear

the release latches of the

and forefinger

by 48 Vdc phantom

(use conventional 2–conductor

, and withdraw the

est

switch

power

ac,

shielded cables). Adjust Mic/Line switches as required for incoming

signal level.

3. If phantom–powered condenser microphones are used, turn

on the FP410E’

s Phantom Power switch. NOTE: With

condenser microphones other than Shure, verify that volt-

and source resistance requirements are compatible.

age

Connect one or both of the FP410E Outputs to the

following mixers, amplifiers or recorders. Make certain each Output Mic/Line put

switch is in the proper position for the desired

levels..

out

5. If an unbalanced aux–level output is needed, connect it to the

ape Out jack.

If additional FP410E mixers are to be linked to increase

the

number of microphone inputs, connect them by means of

Link In and Link Out jacks. Connect the LINK

the first

mixer to the LINK IN of the next mixer

the

LINK IN jack of the

the

last

mixer unconnected. NOTE: Jacks are for linking

only,

not for audio inputs or outputs.

If headphone monitoring of the FP410E mixed signal is re

first

mixer and the LINK OUT jack of

OUT of the

, and so on. Leave

quired, connect mono or stereo headphones to one of the front–panel Phone jacks (

/4–inch or 3.5 mm). Adjust the Phone control knob for the desired loudness (after setting the

microphone Channel to

ing

Operation

section).

and Master Gain controls accord

8. To monitor an external signal source, connect it to the rear– panel

Mon

In jack and pull the Phones control knob outward. Adjust the Phones control and/or the external source level control

for the desired loudness.

Operation

1. Turn on the Power Manual.

Set the Peak/VU meter to Peak or VU as desired.

The

1 kHz internal tone oscillator can be used to help align

the

following equipment levels (master mixer

corder,

etc.) to the output level of the FP410E. The tone os cillator is activated by pulling the Master gain control outward.

Its level at the FP410E output is set by the Master gain

control.

After setting

cillator

by pushing the Master gain control inward.

“T

alk” the microphone connected to the FP410E Channel 1 input, and slowly raise the Channel 1 Gain control to the point where the green LED flickers regularly with normal speech, and the red LED only occasionally with louder speech peaks.

5. Set the other FP410E channel gains in the same manner

6. Set the Flat (—)/Low–Cut (/ Gain

control as required. The low–cut position reduces pick

of low–frequency room noise.

7. Set the Manual/Auto switch to Auto. In about one second,

microphone inputs will turn of

unused

switch and set the Manual/Auto switch to

equipment levels, turn of

, amplifier

f the tone os

, re

) switches adjacent to each

f and the level of an

dividual and

Adjust the FP410E

put lowing

talker’s voice will rise above the background noise

reverberation to become clearer and more intelligible.

Master Gain control for the desired out

level, as indicated by the Peak or VU meter

, or by the fol

equipment.

9. The FP410E is now ready for operation.

MODIFIABLE FUNCTIONS

The

FP410E is ready for automatic or manual operation as supplied. switches visible when the battery compartment is removed. Note changes are made by moving the switch or switches downward. battery

ibrated switch downward. (This switch does not affect calibration of the

Limiter Threshold (Switch Nos. 2, 3). Change the limiter

threshold, the output

Off–Attenuation (Switch No. 4). Change the off–attenua-

tion With level microphone is completely of

Hold Time

of time an activated microphone (which is not locked on) remains second

Last Mic Lock–on Defeat (Switch No. 6). The last mic

lock–on open be the

Phantom Power (Switch No. 7). Phantom power for con-

denser by

METER

Additional versatility is provided by easily accessible

that the switches are

The switch positions

all in the “up” position as supplied;

are illustrated by a label below the

compartment (see Figure 2).

Meter

(Switch No. 1). Change the VU meter

, supplied cal

for +4 dBm = 0 VU, to +8 dBm = 0 VU by moving this

LED output level meter in the Peak position.)

the output level at which limiter action begins, from

factory–set +16 dBm to either +8 dBm, +4 dBm or 0

level by moving these switches as shown in Figure 2.

from 13 dB to infinite (∞) by moving

the 13 dB

setting, an unused microphone is 13 dB lower in

than when it is activated. With

this switch downward.

the ∞ setting, an unused

(Switch No. 5). Change the hold time, the duration

on after the talker stops talking,

from 0.4 seconds to 1.0

by moving this switch downward.

feature keeps the most recently activated microphone

until a newly activated microphone takes its place. It can

defeated so that all

microphones automatically turn of

hold time by moving this switch downward.

microphones,

moving this switch downward.

LIMITER

THRESHOLD

+8 OUT1.

+16

normally 14 V

CAUTION:

OFF-

3 d



BIN0.

TIME

4 S

0 S

ATTEN

, can be changed to 48 V

Make certain

LAS

OLD

LOCK-ON

EC +14 V

EC +48 V

T MIC

PHANTOM

POWER

MODIFIABLE FUNCTION SWITCHES

FIGURE 2

dBm

f after

the

condenser microphones to be used are compatible with the selected 14 cessive

voltage. If the microphones can operate properly with

V phantom power

battery drain.

, that position should be used to avoid ex

INTERNAL MODIFIABLE FUNCTIONS

WARNING

Voltages serviceable parts inside. Refer all servicing to qualified service

In addition to the user–modifiable functions described above, the FP410E is designed so that many of its functions can plementing these modifications are provided in the FP410E Service cations

1. Change Monitor In sensitivity

2. Change T

3. Change Of

4. Change low–cut filter frequency

5. Change Peak meter attack and decay time constants.

Change 0 VU Meter calibration to level other than +4 or +8

dBm.

Change

Switches

Change to permanently lock one or more microphones

9. Change to permanently prevent one or more microphone

channels

10. Change the preset Hold T

11. Change the Monitor In jack to an Aux In jack function for

cascading

12. Change to provide reduced–level program feed in head-

phones

in this equipment are hazardous to

personnel.

be modified by a qualified technician. Instructions on

Manual

are:

which is obtainable from Shure. These modifi

ape Out level.

f–Attenuation value.

Limiter threshold beyond the positions permitted by

2 and 3 (see Figure 2).

from activating.

ime values.

mixers or creating a “mix–minus”.

when Pull For Monitor switch is activated.

life. No user–

on.

WARNING

The safety certifications of the FP410E do not apply if the operating

voltage is changed from the factory setting.

ADDITIONAL INFORMATION

Limiter

The

front–panel Limiter switch responding limiter circuit that cuts overload distortion during loud program intervals without affecting normal program levels. When the switch is In (operating), the FP410E output is limited

approximately +16 dBm. Increasing the individual or

Master

gain controls will increase the average output and

amount

of limiting. The limiter threshold can be changed from its factory setting as described in the section. The front–panel red LED adjacent to the Limiter

indicates limiter action.

switch

Linked

mic can like this can provide over 100 mic inputs. As long as the link jacks of all mixers are connected (out–to–in, sequentially,

Mixers

The

FP410E provides four microphone

inputs are needed, more

be “linked” using link cables of the type supplied. A

turns on a fast–acting, peak–

the

Modifiable Functions

inputs. If additional

FP410Es (over 25, if necessary)

setup

leaving one Link In and one Link Out jack unconnected), the automatic

When FP410E mixers are linked, functions are also linked so that a single multi–microphone system nal) appear at all linked mixer outputs. There is no master/ slave

The output–related controls and functions of each linked mixer other be Master level control, 1 kHz Tone Oscillator, Peak/VU Meter switch, and Monitor control, and Off–Attenuation switch. NOTE: The actual as

more mixers are linked. This reduces excessive noise and reverberation “off”

The input–channel–related controls and functions of each linked other linked mixers. The effect of these input controls is reflected puts. These controls are: Input channel levels controls and Low–Cut switches, Manual/Auto switch, Phantom On/Off switch, Phantom Voltage Selector switch, Hold Time switch, and Last Mic Lock–On switch.

Link

Additional No. 95A1143; 305 mm—12 in.) or constructed using desired lengths of high–quality, 7–conductor, shielded cable (pin 1: shield) mum siderations

mixing functions will be shared by all units.

Shure Intellimix

is created. All input signals (except the Monitor In sig

relationship.

are post–link and do not af

linked mixer outputs. Each mixer’s output controls may

set dif

ferently to obtain dif

Limiter In and

f–attenuation in the 13 dB switch position increases,

microphones.

mixer are pre–link and do not af

in the mixed output signals of all the linked mixer out

Limiter Threshold switches, Phone level

contributed by the increased

fect the

ferent results.

fect the input channels of

signals appearing at

These controls are:

number of typically

Cables

link cables can either be purchased (Shure

with 8–pin mini DIN connectors on each end. The maxi

length of a link cable will

of this unbalanced line.

depend on the grounding con

FP410E and Mixing Consoles

The FP410E can be used in conjunction with large mixing consoles cussions, and nightly news shows. Large consoles have chan nel be patched into individual channel signal paths. These jacks are

FP410E This arrangement allows the operator complete control of each FP410E keeps the number of open microphones to a minimum, relieving the operator of having to open and close mic channels.

to provide automatic mixing for talk shows, panel

insert jacks so that external signal processing devices can

normally line level.

The FP410E can be fed from these insert jacks and the

output then fed

channel via the console’

to a submaster fader on the console.

s input control strip, while the the

SUPPLIED ACCESSORIES AND REPLACEMENT PARTS

Battery Tray Assembly 90GJ2600. Bumper Control PC Board Assembly 90B8368A. Knob, Knob, Line Line Link Left Rack–Mount Bracket 53A8252.

(Foot) Kit (4 in kit))

Master & Phones

Channel Gain (Power) Cord (FP410) (Power) Cord (FP410E)

Cable

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . .

90S8100.

95A8238. 95B8238. 95A8231. 95A8247.

95A1143.

control

Part

dis

Right Rack–Mount Bracket 53A8253.

. . . . . . . . . . . . . . . . .

SPECIFICATIONS

Measurement Conditions (unless otherwise specified): Line voltage

230 Vac, 50/60 Hz; full gain; 1 kHz, one channel acti

vated;

output terminations: Line 600 Ω, Mic 150 Ω, T

200

Ω (

Phones

Frequency Response

25 Hz to 20 kHz, +0.5,–2 dB (any input to any output)

oltage Gain

Input Line Mic

tip–sleeve and ring–sleeve); Auto mode

(controls centered)

Output

Head-

phone Tape

ape 50 k

Ω,

Low–impedance

mic

(150Ω)

Line

Monitor — —

93 dB 43 dB 97 dB 74 dB

42 dB –8 dB 46 dB 23 dB

9 dB

—

Inputs

Impedance

Designed

Input

Mic

Line

Monitor

Outputs

Output

Mic

Tape

Head-

phones

Line

Total

Harmonic Distortion

Line

output)

<0.5%, 25 Hz to 20 kHz

Hum and Noise

Equivalent Input Noise Equivalent Output terclockwise))

Master full counterclockwise

Master full clockwise Output full counterclockwise))

Master full counterclockwise

Master full clockwise

Common

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

Input Channel Activation

Attack Time 4 msec. Hold Time Decay Time 0.5 sec.

Off–Attenuation

13 dB, fixed (switchable to creases

for use with

19–600

≤

10 k

≤1 k Ω

Impedance

Designed

for use with

Any low–

impedance

mic input

>10 k Ω 1 k Ω

8–200

200

Ω rec-

ommended

600

Ω

Input Hum and Noise

Noise (300 Hz to 20 kHz; channel controls full coun

Hum and Noise (20 Hz to 20

Mode Rejection

of unbalanced inputs and outputs

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

as additional mixers are linked)

Actual (In

ternal)

Ω

Ω,

900

66 k

25 k

Actual (In

ternal)

0.5

500

100

(controls centered [5],

. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . .

0.4 sec (switchable to 1.0 sec)

∞

)(single mixer; attenuation in

Input Clipping Level

Ω

. . . . . . . . . .

. . . . . . . . . . . . . .

kHz; channel controls

. . . . . . . . . . . . . .

–15 dBV T

+21 dBV

Clipping

–31 dBV

(28 mV)

(800 mV)

+19 dBm

(6.9 V) min.

o > +26

dBV

Output

Level

min.

–2 dBV

+6 dBV

(2.0 V)

+18 dBm at

–128.5 dBV –128.5 dBV

–82 dBV –71 dBV

–74 dBV –70 dBV

Overload and Shorting Protection

Shorting outputs, even for prolonged periods, causes no damage. to

Low–Cut Filters

6 dB/octave rollof

Limiter

Threshold Attack Time 3 msec. Recovery Time Indicator Lights

Meter

VU Meter Calibration: 0 VU = +4 dBm (switchable to +8 dBm) Peak

Tone

1 kHz, ±

Phantom Power

14 in series resistance)

Operating Voltage

AC operational DC 33 mA typical at 0 VU (+4 dBm) output with 600 Ω load; 6 Vdc line batteries at +4 dBm output in continuous use at room

temperature;

emperature Range

Operating –18° Storage –29°

Overall

44.5 ches)(not

Net Weight

2.27 kg (5 lb)

Certifications

Approved for safety by VDE under DIN VDE 0860/05.89 harmonized with CENELEC HD 195 S6.

Statement of Conformity

This certifies that the Automatic Microphone Mixer, FP410E, meets the specifications and regulations embodied in vfg 243/1992. The Zentralamt für Zulassungen Im Fernmeldewesen has been notified that this device has been device

Microphone inputs are not damaged by signals up

3 V

; Line and Monitor inputs by signals up to 20 V

f below 170 Hz

. . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . .

Meter: Rise Time: Decay Time: 180 msec time constant (83 msec/LED

Oscillator

Vdc open–circuit, 1 k Ω series resistance, input

Mic position only (internally switchable to 48

Operation: 230 V

Operation: 18 Vdc nominal at 25 mA typical no–signal,

minimum; battery life approximately 12

Dimensions

mm H x 368 mm W x 210 mm

marketed and has been provided the right to verify

2.0 msec time constant (0.9 msec/LED step)

10%, THD < 0.5%

, 50/60 Hz, 8 W

two 9–volt batteries (type NEDA 1604A)

. . . . . . . . . . . .

. . . . . . . . . . . . . .

including feet)

or system for compliance with the specifications.

+16 dBm (switchable to +8, +4, 0 dBm)

350 msec

when limiting is

ac rated nominal, 160 to 264 V

to 57

° C (0°

to 71° C (–20° to 160°F).

D (13/4 x 141/2 x 81/4 in

occurring

step)

switches

Vdc, 4.5 k

ac fully

hours with alka

to 135° F )

the

Ω

Questions

Questions about your FP410E installation? This section lists the most common questions asked about Shure’s automatic microphone systems. Maybe your question is among the

following. If not, contact Shure’

ment.

Why don’t I get any sound output from my FP410E?

A. Assuming that your power amp, tape deck, speakers, etc. are good, possibly it’

• The

•

A microphone is not connected,

•

A rear–panel Mic/Line input or output switch or the Phan

tom On–Of

•

The FP410E isn’t plugged in or doesn’t have batteries

stalled,

•

The Power switch isn’t on.

Check these items and make the required correction.

& Answers

s Customer Service Depart

s because:

Channel or Master Gain controls are turned down,

f switch is improperly set,

Q. Still doesn’t work. Why?

Maybe you have tening to headphones plugged into one of the front–panel Phone jacks, try replacing the suspect microphone or cable with

one known to be good.

a defective microphone or cable. While lis

Q. Why does a microphone turn on or off erratically, causing

dropouts?

speech

Excessive room noise (such as from visual

equipment) can be a cause. Reduce the room noise, proximity tance. A loud talker close to their microphone or with their Channel er microphone activation by a “weaker” talker who is too far from their microphone or has their Channel Gain control set too setting

eration

IMPORTANT: Best results are generally obtained when the Last Mic Lock–On is

of the noise to any mic, and/or the talker–to–mic dis

Gain control set too high can sometimes inhibit prop

low

. Balance the microphones by repositioning and/or re

the Channel Gain controls

section.

not

defeated and the Of

air–handling or audio–

in accordance with the

f–Attenuation is

the

Op-

13 dB (modifiable function switches up). Difficult situations may

be aided by changing the Hold Time from 0.4 to 1.0 sec

ond

(modifiable function switch down).

Q. Why am I getting howling through my loudspeakers?

For

the same reason that howling is present in any P

tem:

your mics are picking up the speaker sound and reampli

fying

it. Move the speakers or

trols,

to avoid the howling. Automatic operation more output level before howling than manual operation, but the system still can howl.

Q. Why does the FP410E output sound distorted?

The Channel, Master or Phones Gain control may be set

high.

Set the Channel Gain according to the

Set

the

Master Gain to avoid excessive red LED indications on

the

Output Level meter

Phones

control. Check the following equipment levels.

Why does the speech level go up when I switch from Manu

to Automatic operation?

This is normal and proper er.When switched to Automatic, the FP410E attenuates any input

channel not

tive

channels from the FP410E

the

perceived level of any the audio gain increase will be 6 dB when going from four to only

one activated microphone channel.

being used. Internally

Q. Why is one of my four mics very noisy?

Assuming the mic by substituting with another mic), you probably have a constant

noise source such as tive fluorescent light ballast in the trouble area. This ambient noise source can be unnoticed until it’s picked up by a mic: then

it’

s extremely annoying. If you can’t repair

the

noise source, try relocating the mic to eliminate or at least

lower

the noise. If this is not possible, use the Manual mode to avoid microphone activation problems and accept

the noisy output.

is operating properly (you can check this

mics, or turn down the gain con

Operation

, or switch the Limiter in. T

operation for any automatic mix

, this removes the inac

mix bus. This action increases

active

input

channel. For example,

air–moving equipment or a defec

, turn of

A sys

does

provide

too

section.

urn down the

f or lower

FP410E in the

TAPE

OUT

MIC/LINE

OUTPUTS

BALANCED

HEADPHONES

METER

PEAK/VU/BATTERY

LIMITER/

EVEL R L

MASTE

MIC

INDICATOR

ATTEN

GATED

SIGNALS

LINE

Hz 1 K

MIC

OSCILLATOR

NON-GATED

LINE

SIGNALS

, 3, 4 S 2

CHANNEL

LEVEL

HEADPHONES

OUT

ACKS K J

LIN

MONITOR

LEVEL

CHANNEL

LOW-CUT

POWER

PHANTOM

INPUT

MIC/LINE

BALANCED

INTELLIMI

LEVEL

CHANNE

ATTEN

CONTROL

INDICATORS

TYPICAL) L 1 (

CHANNE

MANUAL

AUTO

Shure 53A8253 User's Guide

Specifications and Main Features

Frequently Asked Questions

User Manual