background image

9

5.4 Rear Side Features

1) gnd lift

The 

ground lift

 switch separates the earth conductor 

from the signal ground and suppresses humming.

2) headphones

This output enables you to connect 

stereo headpho-

nes

 and switches the loudspeaker over to mute. The 

device  is  a  quality  stereo  headset  amplifier  which 
outputs 2 x 50 mW and 32 Ohm.

!!!

Warning: Only use 

headphones with stereo 
jack plugs in this output 
socket!!!

3) line out

The 

line out 

provides the pre-amp signal for conduc-

tion to other appliances with 0 dbV.

4) sub out

This socket provides a frequency-adjusted output sig-
nal for operating an active 

subwoofer

.

5) footswitch

The 

footswitch

 socket enables the connection of a 

stereo footswitch (on/off switch) which can be used 
to  switch  the  amplifier  to 

mute

 or to switch the 

ef-

fect loop

 on or off. The switches are: 

TIP = mute

RING = effect loop

.

6) send

This socket connects the 

amp three

 to the input of 

an external effect device. Together with 

return

send

 

forms an effect loop path. The effect can be switched 
on or off via a footswitch.

7) return

Being part of the effect loop path,

 

return

 represents 

the input for an external effect device (from the out-
put of the effect device). 

Return

 on it’s own may also 

be used as quasi auxiliary signal input (-10 dbV).

8 and 9) insert pre eq / insert post eq

Insert pre/post eq

 are two more effect loop paths to 

loop  additional  external  effects  (filter,  compressor 
etc.) inzo the signal path, either 

pre

 or 

post

 equali-

zation.

10 and 12) aux in / aux level

The 

aux in

 is an additional stereo-input for connec-

tion of external signal sources (e.g. CD-player). With 
the 

aux level

 control you adjust the signal strength 

of the 

aux

 signal.

11) tuner

Output socket (-6 dbV) with 

pre master 

signal to con-

nect an external tuner to the 

amp three

.

13, 14 and 15) DI

The 

DI-out

 (XLR socket) delivers a symmetrical pre-

amp signal 

pre  master

. The 

DI-Level

 control adjusts 

the signal output level and with the 

DI pre/post

 

switch you can choose between pre- and post-equa-
lizer signal.

Power on

Combined mains switch with 
mains socket and integrated 
fuse holder to switch your 

amp three 

on and off.

P.S.: For questions or suggestions contact us: 
[email protected]

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

AT T E N T I O N

RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

AT T E N T I O N

RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

2

3

4

6

8

12

9

7

5

15

13

14

11

10

1

Summary of Contents for amp one

Page 1: ...1 amp one user manual Register your amp one www aer amps com Customer Service ...

Page 2: ...ear Side 5 4 Starting up 6 4 1 Cabling and Switching on 6 4 2 Level Adjustment 6 5 Functional Characteristics 7 5 1 Mute 7 5 2 Tone Control Networks 7 5 2 1 colour 7 5 2 2 bass boost 7 5 2 3 parametric equalizer 7 5 2 4 tone balance 7 8 5 3 Compressor 8 5 4 Rear Side Features 9 6 Technical Specifications 10 7 Circuit Diagram 11 ...

Page 3: ...s and easy operation The 10 inch high perfor mance bass loudspeaker supports this versatility whilst simultaneous ly adding some tube like compression The design of the power amp especially supports the impulse response and provides impressive po wer at short term exceeding significantly the specified 200 W on 8 ohm which you can clearly hear Amp one is professionally and richly equipped and of co...

Page 4: ...o user serviceable components inside your device To avoid the hazard of an electric shock the unit must not be opened All maintenance adjust ment and repair work must be performed by qualified technicians only Any unauthorized tampering will void the 2 year warranty 9 To comply with the EMV requirements shielded cables with correctly fitted connectors must be used for all signal connections 10 Ple...

Page 5: ...t power on power on off switch with fuse holder ref to technical data mains fuse 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3 2 Rear Side 16 17 18 19 20 21 threshold treshold control input signal ratio compression ratio control active compressor active mode indicator on off compressor activation switch deactivated acitve master master level control power on off status indicator IB_AmpOne_1201 CAUTION ...

Page 6: ...al chain is neither too high nor too low This applies equally to all com ponents of a unit e g equalizer tone balance com pressor Consequently care must be taken that no part of the circuit is overloaded or that distortion is unintentio nally added to the signal We have carefully designed the circuit to achieve this objective whilst also provi ding controls gain master level for manual interven ti...

Page 7: ...ER products the amp three is fitted with an excellent basic tone thanks to the selection of com ponents circuits and pre equalizations In addition va rious equalizer networks enable you to adjust the ba sic tone to suit your personal requirements With amp three you can activate fixed filters colour bass boost and two adjustable filter networks equalizer and tone balance Note Basically instruments ...

Page 8: ...axis OUT are shown in dB Along the 45 line the input and output levels are the same that means a compression ratio of 1 1 there fore no compression A compression of e g ratio 4 1 means that further in crease in level above the threshold will be maintained at a constant ratio of 4 1 In other words if the input level increases by a factor 4 then the output level only increases by a factor 1 This mea...

Page 9: ...part of the effect loop path return represents the input for an external effect device from the out put of the effect device Return on it s own may also be used as quasi auxiliary signal input 10 dbV 8 and 9 insert pre eq insert post eq Insert pre post eq are two more effect loop paths to loop additional external effects filter compressor etc inzo the signal path either pre or post equali zation 1...

Page 10: ...wise balance left 12 dB at 50 Hz balance center 9 dB at 50 Hz and 10 dB at 10 kHz balance right 2 dB at 50 Hz and 11 dB at 10 kHz shelf type frequency response Compressor note 5 Characteristics Soft knee RMS responding gain reduction Threshold adjustment range 0 25 mV 78 mV 72 dBV 22 dBV at instrument input Ratio adjustment range 1 1 5 1 RMS Time constant 40 ms Indicator LED Lights up at ca 1 dB g...

Page 11: ... OFF ON BASS MIDDLE TREBLE FREQ OFF ON BASS BOOST BANDWIDTH TONE BALANCE COMPRESSOR OFF ON THRESH RATIO TUNER SEND RETURN LINE OUT SUB OUT HEADPHONES HEADPHONES AMP POWER AMP SUBSONIC RMS LIMITER AUX MASTER DI OUT DI OUT PRE POST EQ MUTE INPUT DI OUT LEVEL CLIP DETECTION CLIP DETECTION CLIP DETECTION COLOUR FOOT SWITCH INSERT PRE EQ INSERT POST EQ AUX IN 1 2 3 T R T R T R T R ...

Page 12: ...www aer amps com amp one 2012_01_GB ...

Reviews: