[Sandbakk]

A question just out of sheer curiosity, if only to raise the cool factor on something that is already very good:
What will the result be if you make two Servo Sub Kit 5 on each side, that is 4 Servo Sub Kit 5 units in total.
Or possibly make a separate cabinet with room for 6 woofers in each cabinet?
For example, will one amplifier be able to drive all six elements on one side, or will two amplifiers be needed on each side?
Will it be able to raise the sound quality even more, or will it just be a cool thing?
It will be a great setup to watch anyway, don't you think?

[Chewbacca]

Hi Sandbakk!

I believe this has already been done a few times. Most that I've seen have included modular single woofer boxes in a (6) stack on each side, and they use the Rythmik HX800 amps (1 amp per 6 woofers, 2 amps in total)

Below is a photo from one of HAL's systems. I saw this in a thread a while back, and stole it from his gallery.

HAL - if you'd like me to delete this picture, please let me know! Don't mean to overstep by posting one of your pictures!

[Sandbakk]

Thanks for the nice answer, and for the informative photo (hope you get approval for using it).

It would have been great if you who have made this can say something about the result, and what it does with the sound, if it is such a big advantage that the extra investment pays off. Anyway, I'm considering building this myself, if only because it looks great.

Greetings from Norway.

[Early B.]

Not sure this helps, but I have three dual subs. If I had the space, I'd have four of them. In fact, I might build another one next year and make it fit.

I started with one. Three is incredible, but four would take it to the next level. I think four triples would be ideal, though -- three in front and one behind the listening position.   

[Sandbakk]

My first thought was to make two towers with six woofers in each tower. But maybe your idea is also something to consider.

[Chops]

Sandbakk, I like the way you think. 

[Chewbacca]

[Early B.]

My first thought was to make two towers with six woofers in each tower. But maybe your idea is also something to consider.

Yeah, the benefit is the ability to move multiple subs around the room to achieve the best sound. Imagine being flanked by two triples at your sitting position with two more in front of you. Oh, man!!! It's called being "immersed in the music." Of course, you need a large room to pull it off.   

[HAL]

No problem with using the picture of the modular 6x12's.  Captainhemo still had some modules last I talked to him.

I did change to 2xHX300 servo amps per 6x12.  I needed more upper bandwidth than the HX800 gave.  Also gives flexibility if I wanted to split them into 4-3x12's.

[NoahH]

Captain Nemo also is wrapping up a new pair of cabinets for me that are not modular. They are 6 drivers per side. I had planned to do 4 plate amps total to drive them, but had not been thinking of the HX series. I will consider that seeing that it got some love from others.

[Sandbakk]

Sorry I have so little knowledge here, but this is something I have not fully understood yet: if I choose a set of Servo Sub Kit 5 and one Sub Kit 4 (? - the one with two woofers) on each side, in a tower, will there be any impedance problems if i choose to operate all five woofers with one amplifier?

The reason I am considering this is that I envision building a tower with five woofers on top of a plinth with the amplifier built into the plinth.
And that I want about the same height on this tower as on an NX-Treme, and at the same time avoid a separate box for the sub-amplifier.

[Danny Richie]

Sorry I have so little knowledge here, but this is something I have not fully understood yet: if I choose a set of Servo Sub Kit 5 and one Sub Kit 4 (? - the one with two woofers) on each side, in a tower, will there be any impedance problems if i choose to operate all five woofers with one amplifier?

The reason I am considering this is that I envision building a tower with five woofers on top of a plinth with the amplifier built into the plinth.
And that I want about the same height on this tower as on an NX-Treme, and at the same time avoid a separate box for the sub-amplifier.

If you build a stack of two woofers and a stack of three woofers then you do need to power them with separate amps.

Even if the stacks are the same, if they are separated into different towers then you need to use separate amps. Those amps also need to be placed very close to each woofer tower. Long cables will cause some issues with control by causing some delay.

[Endo2112]

Jay has completed the dry fit of 1 of your 6 stacks NoahH and we'll get a photo asap. unfortunately Jay has lost his camera card, he did say they were beasts with the larger size base!!

Don

[NoahH]

Jay has completed the dry fit of 1 of your 6 stacks NoahH and we'll get a photo asap. unfortunately Jay has lost his camera card, he did say they were beasts with the larger size base!!

Don

I am laughing maniacally while reading this!

[Sandbakk]

I am very grateful for all the good answers, but it may seem that I have made the same mistake I can often make; I tend to overcomplicate things, especially in my explanations, so I will try to use the right words now, since it may seem that what I have tried to convey may have been misunderstood. Or that I misunderstand the answers I have received. I'm sorry anyway. English is not my native language. 

What I'm looking for are simply two bass towers with five woofers in each tower, with one Rythmik amplifier for each tower. Same as HAL's but with five woofers instead of six.

That's it. 



(Images for principal illustration only)

The reason why I used the names of Servo Sub Kits is that I can not see that it is possible to order only the actual woofer elements on the GR-Research website, so in order to get to this project, I have to, as I understand it, order two sets of Servo Sub Kit 4 and two sets of Servo Sub Kit 5.

The reason I want five elements in each tower instead of six is ​​simple enough that I want to build a base at the bottom to place the Rythmik amplifiers, so I do not have to have these in separate boxes. With six elements in each tower, the height of the tower would simply be too high.

For the record, my listening room will be 7 meters (21 feet) wide, 13 meters (39 feet) long and 3.3 meters (10 feet) high, so there will be room for two such towers in addition to a pair of NX-Treme. 

[Sandbakk]

I choose to start a new thread with questions aimed directly at the new idea.

https://www.audiocircle.com/index.php?topic=179160

[Danny Richie]

There isn't a way to put five woofers on one amp.

You can power two or three woofers with one A370 amp.

The HX800 amp can power four or six woofers (not five).