Sonics by Joachim Gerhard cabinets and kits

[Joachim Gerhard]

Here are the responses without and with the trap.

 

[Joachim Gerhard]

You see on the second picture that response is slightly down at 20kHz with the trap.
This was one of the unavoidable compromises. This is corrected in the crossover as good as I could.

 

[Joachim Gerhard]

Response is not calibrated in this pictures. I assume 93dB sensitivity and 6 Ohms.

 

[Joachim Gerhard]

I use a 2.2 Ohm resistor to match the tweeter to the woofer.

 

[vitalica]

The parameters of the woofer are optimized for the 40 Liter cabinets of the Arkadia.
I use a siighly overdamped bass reflex tuning with a low 32Hz minimum.
Bass is really tight and deep for this rather small volume.
I modified the tweeter. It has a rather flimsy round paper thingy to close the volume in the back so I added some damping and stiffening in the form of multiplex wood.
The ca. 27kHz come brackup is controlled by a precision trap. This proved rather difficult.
I needed two days to find the optimum compromise.
The improvements show as lower intermodulation distortion and optimized Impuls response.

Hello Joachim ,
I want a pair, I've sent mail to you.
BR

 

[Joachim Gerhard]

Here you see how the Arkadia last Edition looks.
There is a picture of the bass driver with the huge magnet too.
It has a 132mm diameter.

 

[Joachim Gerhard]

I designed a stand that I call Low Boy. That way you can place a speaker like the Arkadia right on the floor.
You can also turn around the speaker. Now the tweeter is near the floor. You can add a wedge and then you have something like a Snell Type 1.

 

[Joachim Gerhard]

Turned around.

 

[Joachim Gerhard]

Snell Type 1.

 

[Joachim Gerhard]

This works really well.

 

[Joachim Gerhard]

Sonics Arkadia Last Edition

The Arkadia Last Edition is ready.
You can use is conventionally on a stand and also like the Snell on the floor with a reflector.
Both sound great in their own way.
Ready made they cost 2400,- € a pair.
I sell a Kit for 1800,-€ a pair.
I can deliver custom made stands for 698,.€ the pair.
The speakers come with a certificate of authenticity to differentiate them from the ones build by Sonics after I went out of the company that are floating around on the web for low prices. Not all of them are made correctly.

 

[Joachim Gerhard]

Here some more.

 

[strat265]

Joachim, do you still upgrade older Anima's?

 

[Asdonk]

So this is problably one of these Sonics Arkadia Made by Sonics After you leeft ?

 

[Asdonk]

So this is problably one of these Sonics Arkadia Made by Sonics After you left.

It Sems to be a Sonics Argenta


In German

Eine weitere Besonderheit ist das Gehäuse. Hier für den Preis von 1.300 ¤ mehr als MDF zu erwarten ist ja fast schon frech. Was nichts gegen MDF heißen soll, das Material kommt auch in wesentlich höheren Preisregionen zum Einsatz und hat sich dort bewährt – aber hier wird ein Drei-Komponenten-Kabinett geliefert: Es besteht aus zwei Spanplatten mit unterschiedlicher Dämpfung und ist innen mit Keramikplatten verkleidet. Ein Aufwand, den nicht jeder betreibt. Gehäuseresonanzen soll so der Garaus gemacht werden. Kaschiert wird das Ganze nicht mit Folie, sondern mit Echtholz-Funier. So weit, so solide.

 

[SEED78]

Here some more.

been trying to get in contact - your inbox on here has exceeded its limit.

 

[Joachim Gerhard]

Sorry that I did not answer. I am very busy. I will send you information on monday.
We have a show over the weekend.

 

[SEED78]

Sorry that I did not answer. I am very busy. I will send you information on monday.
We have a show over the weekend.

totally understand, will wait - good luck with the show hope it goes well!

Be aware that none can message you at the moment, because your message storage on here is over its limits

 

[MIJK]

Hey Joachim,

Is it a standard version of the DA25BG60 you use in the Arkadia except for the modifications made to the back chamber?

What do you think of that tweeter? It is high up on my list of tweeters to try.

Thanks

 

[MIJK]

Oh, could you possibly explain what difference the trap does for the sound?

Can you share what kind of trap is used? Component values?