ARTA

[b_force]

Sorry,ik breek even in in dit draadje want ik kreeg de melding dat ik 24 uur geen privé berichten kan versturen. Hopelijk zie je dit en kun je even een mail adres geven ouzo. Anders reageer ik morgennamiddag wel . Groeten, Ed

Don't know if you're able to receive messages?
Otherwise just check my about page 🙂 🙂

 

[EdJ]

Mail sent.

 

[DefiantGSR]

Accurate? Depends on the application. Versatile, of course. The complete 2 channel jig allows for T/S at adjustable voltage level, as well as ability to analyze other circuits as well such as active filters if you are clever.

Semi-dual vs full dual channel is up to you. For loudspeaker measurement, full dual channel measurement would be my recommendation. For example if you want to measure some delicate ribbon tweeter with a transformer that requires a capacitor, you can locate the reference channel probe on the speaker side of the capacitor and compensate completely for it. Keep in mind as well that the difference between the dual channel and semi-dual channel is just a couple cheap resistors and some wire, so why take the lazy approach?



No bridged amplifier is correct, at least if you plan to use the jig as all schematics online show. This would mean to avoid most low cost class-D solutions, including some Icepower solutions. Hypex modules are just fine to use, as well the LM3886 chip is perfectly usable device for measurement setup, I use a DIY My_Ref amp myself a lot of the time. The description above sounds like some fancy description of "it's an amp". Specs for the Thomann is 50W/4ohm so I have no doubt that is is a single LM3886 in a box.

Hi Dcibel,

Can you please give some examples of the prohibited amplifiers that are incompatible with your dual channel jig? How can I verify that an amp is not bridged? Thank you

 

[DcibeL]

Turn on signal generator in ARTA at 60hz, measure with AC voltmeter from each amp speaker output terminal to ground. If one terminal has AC voltage, the other at or near zero, it's fine. If both red and black terminals have same AC voltage, not fine.

 

[SMABB]

@JanRSmit and @stephen_m you both refer to a “Home” button for referencing zero on the IR in posts #1,483 and #1,487 respectively.

I am a bit confused as to what, you are referring to with regards to this “Home”-button. Would you mind explaining in more detail, in order for me to better understand?

 

[DcibeL]

It's the button on your keyboard that says "Home" on it.

 

[JanRSmit]

Check page 73 of aeta user manual.

 

[SMABB]

@DcibeL, @JanRSmit,

Thank you so much for replying so quickly.
It has been ages, since I’ve been in chapter 4, but I reread chapter 6 twice yesterday trying to find this “Home” button 😅