background image

Phantom 

(supplementary source voltage):

48 V 

48 V on or off (for all microphone 
inputs)

9 V 

9 V on or off (only channel 2 to 
supply an active electronic unit)

Return:

Aux 

level-control for the auxiliary 
input (tape-in, RCA phono-plug)

Effect 

level-control for the internal 
effect-loop

Compressor 

(e.g. to compensate differences in the

dynamic range of the sources):

Select 

switch to select channel 1, 
channel 2, channel 3 or 
non-operational

Active 

compressor operational

Threshold 

control for the operational level

Ratio 

control for the compression ratio

Master 

(adjustment of the overall volume):

HF-Volume 

level-control for the high-frequency 
power amplifier

Volume 

level-control for the 
overall-volume

Notch 

(notch filter):

on/off 

filter on or off

Cut 

level-control for the narrow-band 
reduction

Freq 

level-control for the frequency 
selection

Basscube

C

-7-

aux

48 V

9 V

return

effect

cut

freq.

on/off

ch 1

ch 2

ch 3

off

select

active

master

hf-volume

volume

power

retur

notch

threshold

ratio

compressor

Summary of Contents for Basscube

Page 1: ... instruments The BASSCUBE unfolds particularly impressive qualities with the double bass whether plucked or bowed Although the range of bass tones is huge and their tone variety is enormous we think we have found more than just a good compromise Contents 1 Introduction 2 Precautionary Measures 3 Our Idea 4 Operating Elements 5 Summary of Operations 6 Technical Data Basscube Operating Instructions ...

Page 2: ...rvicing will void the two year war ranty Keep these operating instructions in a safe place 2 Precautionary Measures Read all the directions in these operating instruc tions and make sure that you understand them Pay attention to all warnings instructions and sup plementary text written on the BASSCUBE Always use a grounded mains connection with the appropriate supply voltage If you are uncertain w...

Page 3: ...t has a sensitive resonance pattern and a larger sound range At this point that should be enough to make it clear 3 Our Idea The BASSCUBE is fundamentally different from oth er amplifiers on the market As in the case of our ACOUSTICUBE IIa we have tried to produce a professional amplifier with compre hensive facilities producing excellent tone qualities in a small transportable cabinet It is well ...

Page 4: ...nt voltage inde pendant from the load current Its efficiency is ex ceptionally high Among other things this makes it possible to provide this degree of performance in such a small cabinet without causing thermal prob lems The analogous signal processor monitors the sig nal so that full power amplifier performance can be called upon without the headroom that would normally be necessary That saves s...

Page 5: ...nd an XLR male socket symmetrical for mic and voice Select preselector switch for Line input stage among others for instruments with magnetic sound pickups or piezoelectric pick ups with active preamplifiers Piezo input stage passive piezoelectric pick up without preamplifier a specialAER develop ment Mic standard symmetrical microphone input stage and input cut freq on off harmonics bass mid freq...

Page 6: ...ocket for a 6 3 mm jack plug Select switch for input stages Line input stage among others for instruments with magnetic sound pickups or piezoelectric pick ups with active preamplifiers Insertable filter module 200 Hz 3 dB 800 Hz 6 dB to improve matching to various instruments Piezo input stage passive piezoelectric pick up without preamplifier a special AERdevelop ment 9 V LED indicator 9 V phant...

Page 7: ...nel 2 channel 3 or non operational Active compressor operational Threshold control for the operational level Ratio control for the compression ratio Master adjustment of the overall volume HF Volume level control for the high frequency power amplifier Volume level control for the overall volume Notch notch filter on off filter on or off Cut level control for the narrow band reduction Freq level co...

Page 8: ...nd output for an external effect device Return input for an external effect device Aux in auxiliary input e g for tape recordings drum machine Extern passive speaker output for an additional passive loudspeaker minimum impedance 8 ohm Groundlift disconnects the protective conductor from the signal ground to prevent hum pick up in case of multiple grounding Power on off combined power supply with l...

Page 9: ... volume with the Master control HF Vol is the control for the share for the high frequency power amplifier Basscube C 9 Tone control The three band tone control of your BASSCUBE is technically of a completely parametric design how ever only the mid band can be user adjusted in fre quency and level We hope that we have chosen the filters so that you will be provided with a versatile and universal a...

Page 10: ...uality 2 This helps to reduce feedback and oth er annoying resonances The special properties of the notch filter can also be used to modify the sound Compressor All our amplifiers are dynamically controlled The supplementary compressor can only be switched off completely or switched to one channel In addition to its function as a dedicated bass effect device it can be used to compensate difference...

Page 11: ... 0 2361 891789 90 Telefax 49 0 2361 891798 99 5 Technical Data Inputs Ch1 XLR Combi line unbalanced 1 MEG stereo ring 9V 15V phantom power piezo unbalanced 10 MEG Bultra high impedance inputstage mic balanced 1 k 48V phantom power Ch2 line unbalanced 1 MEG piezo unbalanced 10 MEG Bultra high impedance inputstage Ch3 XLR Combi line unbalanced 1 MEG stereo mic balanced 1 k 48V phantom power Return e...

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