Fischer Amps In Ear Amp User Manual

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FISCHER AMPS

MANUAL

In Ear Amp

Dear customer:

You have decided to buy a

Fischer Amps

product. Thank you.

Please read this manual carefully prior to the first use, you will get important information for
use and safety of the unit. These safety and operating instructions should be retained for
future reference.

Should you have further questions, please do not hesitate to contact FISCHER AMPS.

Product Description:

Fischer Amps In Ear Amp: A high-quality headphone amp in 9.5-inch metal housing. This Amp completes our
product line of wired in ear headphone amps. Many in ear monitoring applications do not require the use of
wireless technology. Hard-wired in ear systems provide many advantages: They provide more dynamics and
higher sound quality, and you save wireless frequency channels which can be used for other systems.
Combined with the new Guitar In Ear Cable, the Fischer Amps In Ear Amp is the ideal solution not only for
guitar and bass guitar players who prefer to perform with wired equipment on stage. It is also perfect for
keyboard players, drummers, orchestra musicians ...

Basic information on the use of in-ear monitor systems:
CAUTION:

Using this system at too high sound levels may cause permanent hearing defects. Adjust the
volume so that you can hear sufficiently. Ringing in the ears can indicate that the adjusted
hearing level is too high. Use headphone systems with good fitting which suppress the
ambient noise well. This allows that the required listening volume can be low which is kind to
your ears.

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Actuators and Connections Front Side

Description of the actuators (front side) :

(1)

On/Off Switch with LED When the operating voltage of the amp is switched off, the Amp still

consumes a power of minimum 2 watts. Therefore we recommend that
the Amp is disconnected from the mains supply, if not used for a longer
period of time.

(2)

Earphones Output Earphone connection for the Fischer Amps Guitar In Ear Cable or XLR

male 3-pole: to connect a symmetric standard microphone cable in
combination with the Mini XLR Body-Pack. The use of microphone
cables allows musicians to perform in distance from the In Ear Amp.
Even the transmission of the earphone signal through a multicore or

sub-multicore is very easy without the need for an adaptor.
(3)
Earphones Output Direct connection of earphones to the In Ear Amp. For use with 1/8”
stereo connector 1/4“ mini connector in ear earphones, an adaptor and a 2m extension cord is

included in the In Ear Amp package.
The two earphones outputs are switched in parallel, and – as long as

the connecting impedance of 10 ohms will not be exceeded – can be

used together. The maximum output power is 80mW per side.

IMPORTANT: The stereo jack may only be operated with a stereo earphone set with stereo jack

connector. When using a mono jack connector, the right side of the amplifier is
short-circuited permanently and is overloaded.

(4)

Volume Control Adjusts the total volume at the earphones outputs.
Earphones Output This volume control is switched after the limiter unit. When the Mini

Body Pack with passive volume control is connected, the maximum

volume required should be adjusted at volume control (4), as the

volume can be set to the optimum hearing level at the Body Pack.

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(5)

Change-over switch

Stereo/Mono-Mix
Stereo-Mode: The device outputs the signal fed into the left input (channel 1) at the

left earphone and the signal from the right (channel 2) at the right

earphone.
Mono Mix Mode: Channel 1 and channel 2 are mixed and output to both earphones. By

means of the pan (balance) control the ratio between both channels can

be adjusted.

If a stereo signal is connected at the Aux-Input, a Mono Mix signal is
generated automatically from this stereo signal when the switch is in
position Mono Mix.

(7)

Gain Control Adjusts the correct working level of inputs 1 and 2, the level can
Channel 1/2 be adjusted from 12dB to –10dB. The optimum working lev el is when

LEDs 0dB light with signal input, and when the red limiter LEDs flicker
slightly with signal peaks. This ensures correct working of the limiter,
which limits the sound level when it escalates, e. g. due to feedbacks.

(8)

LED Level Display Shows the internal working level before the earphone power amp with

Pan control and Stereo/Mono Mix changeover switch. The levels for
channels 1/2 and Aux Input at the gain control are set in such a way
that the 0dB LEDs light when there is a signal, and the red LEDs flicker
slightly when there are signal peaks. The red LEDs light from an internal
working level of +4dB on, at +5dB the internal working level is limited.
This ensures correct working of the limiter, which limits the sound level
when it escalates, e. g. due to feedbacks.

(9)

Volume Control Aux-Input Adjusts the correct working level of the Stereo Aux input. This control

allows to raise very low levels so that the internal working level can be
adjusted correctly.

(10)

Switch Add-on of the Aux input signal to the Shaker Line Out on the back
Aux-In to Shaker Out: of the Amp. If a stereo signal is connected at the Aux-Input, a Mono Mix

signal (Post Volume control Aux-Input) is output automatically at the
Shaker Out. The inputs of channels 1 and 2 are output at the Shaker
Out and cannot be disabled (Post Gain control Channel 1 and 2).

(11)

Aux-Input Input for an additional stereo or mono sound source (klick track, CD-

/Mp3 player, sampler...) which can be mixed to the main signal of
channel 1/2. The inputs are unbalanced. When a mono signal is looped
in only at the left output connector, the signal is internally at the left and
at the right side. When only the right input connector is occupied, the
signal can only be heard at the right side. When the Stereo/Mono switch
in the master section is adjusted to Mono Mix, the stereo signal at the
Aux Input is automatically added to mono.

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Actuators and Connections Back Side

(1 / 2)

Combined XLR­Jack Connections
Channel 1 (left), Channel 2 (right)
Connections of the input signal from the mixing console or other audio

sources. Assignment of the combined XLR connection:

XLR stereo jack 1/4“

Pin 1 = Ground sleeve
Pin 2 = Signal + tip
Pin 3 = Signal – ring

With asymmetric wiring with XLR cables, PIN 3 should be assigned to
ground (bridge in connection plug). Nominal input level 0dBu, adjustable
at front side from –10 dB to +12 dB, input impedance 10kohms.

(3 / 4)

Link Outputs
Channel 1 and 2 XLR outputs to loop input signals to more Amps.

Pin assignment: Pin 1 = Ground, Pin 2 = Signal (+), Pin 3 = Signal (-)

Please note: With asymmetric connection of inputs 1 and 2, the signal

at the Link Out connectors is unbalanced as well and will not be
balanced internally.

(5)

Switch Shaker-Amp Line Out When the switch is pressed, the signal at the Shaker Amp Line Out

passes a low pass with a cutoff frequency of 80 Hz / 24 dB-octave. This
feature is very helpful when using a standard PA amplifier without
integrated frequency crossover for the shaker. The cutoff frequency of
80 Hz corresponds to the optimum working level of the bass shakers.
When the switch is not pressed, the signal is output full range. This is
also the correct switch position when operating the ButtKicker Amplifier
BKA 1000-4 in combination with the Fischer Amps In Ear Amp, as the
BKA has an integrated, controllable low pass.

(6)

Line-Output To Shaker Amp Unbalanced connection (jack 1/4“) for an amplifier to control a bass

shaker. Nominal working level 0 dB. The added signals of channel 1
and 2 and switchable of channel 3 and 4 are at this output (after the
gain control and before the earphone amplifier). No matter of the
adjusted earphone volume level, the shaker output can be switched
from full range to low pass with a cutoff frequency of 80Hz/24 dB/oct.

(7)

Power In 2-pole power connector for the power cable. The In Ear Amp has an

internal encapsulated and isolated switching power supply, therefore

there is no need to connect the Amp to GND. This also prevents hum

noise occurs. The switching power supply has an input voltage of 90 to

250VAC 50-60Hz, so the Amp can be used world-wide.

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BLOCK DIAGRAM FISCHER AMPS IN EAR AMP:

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Specifications In Ear Amp

Dimensions L x W x H: 220 x 190 x 43 mm

Weight: 1.7 kg
Operating Voltage: 90 to 250 VAC (automatic adjustment)
Mains Connection: power connector 2-pole

Frequency Response: 20Hz to 30 kHz +/- 2 dB

Power Headphone Amp: max. 80 mW, minimum impedance 10 ohms

Limiter in Headphone Amp: yes (cannot be disabled)

Input Connectors: 2 x combined XLR/jack, symm., 0 dB input level

1 x Stereo Aux-Input jack, asymm. at front side, -10dB

Outputs: 2 x XLR Link out, 1 x Line Out Shaker-Amp, jack

Headphone Outputs:

:

1 x XLR male for Guitar In Ear Cable
1 x 1/4“ stereo jack with adaptor 1/8“

WARRANTY:

The manufacturer grants a warranty of 24 months from the date of purchase by the original owner for defects in
materials or workmanship. When the appliance has been subject to misuse or has been altered, the warranty
expires. When returning the defective unit, enclose the receipt, pack the unit to avoid transit damage, and return
the unit carriage prepaid. The manufacturer does not accept carriage forward consignments.

FISCHER AMPS

HANS-ULRICH-BREYMANN-STR. 3, D–74706 OSTERBURKEN

TEL: [phone], FAX: [phone]

E-MAIL:

[e-mail], Internet: www.fischer-amps.de

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Notes:

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Notes:

FISCHER AMPS

Hans-Ulrich-Breymann-Str. 3, D-74706 Osterburken / Germany

Phone [phone], Fax [phone]

E-MAIL:

[e-mail], Internet: www.fischer-amps.de