Some active di boxes have gain controls so you could boost the signal level or decrease it.
Active di box circuit diagram.
As far as with or without a di box that s not really an option.
A direct injection or di box is a very handy piece of equipment for any public address rig or recording studio whether for band or general use.
Nov 29 2016 circuit of active subwoofer circuit by using x4 ic tl082 or you can using equivalent ic 4558 jrc4558d jrc4558 tl072.
At the heart the radial jdi employs the world class jensen jt db epc audio transformer delivering a smooth warm sounding bessel curve reminiscent of the finest vintage gear.
Active and passive components form the two main types of electronic circuit elements.
An active component supplies energy to an electric circuit and hence has the ability to electrically control the flow of charge a passive component can only receive energy which it can either dissipate or absorb.
Jensen direct box transformers data sheets have example circuit diagrams rate this link.
The active subwoofer function to filtering bass tones low and add settings for low tones frequency ranging from 20hz up to 70hz.
Most of us as sound types know that we use a di box to interface a line level or instrument level signal with a microphone preamplifier.
It will allow you to connect the output from guitar amps keyboard mixers tape machines and just about anything else directly to the mixer without using a microphone and with no hum loops.
Jt db e in ham radio line level to mic level circuit.
Pure sound of the instrument.
As101 alway on signal sensing subwoofer mute circuit.
The instrument cable can only run 10 15 feet and after that you get signal degradation and interference because it s an unbalanced signal.
A di box i suppose a good place to start would be understanding exactly what a di box does.
Direct injection box for recording pa systems passive and active di box designs rate this link.
Active filter subwoofer stereo audio yiroshi rs 2600 18hz 200hz medidas de la placa real 10 5cm x 7 5cm serigrafia final pcb guia de componentes rs 2600 mascara de componentes subwoofer diy subwoofer box design diy amplifier class d amplifier diy electronics electronics projects electronic circuit design minion circuit board design.
Db 4 direct box four channel di box with keyboard or dum machnine inputs product datasheet with circuit diagram in pdf format rate this link.
Jt 10kb d jt db e provide j box consumer to studio interfaces.
If you can solder one component to a couple of jacks you can make the best passive di money can buy.
Jt 6110k b converts high impedance input to x10 balanced audio input.
Essentially to get the instrument level or line level signal to.
The radial jdi is a passive direct box designed to handle extreme signal levels without distortion of any kind.