Rythmik Amp Settings for H-Frame

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JDUBS

Rythmik Amp Settings for H-Frame
« on: 20 Dec 2011, 01:25 am »
Danny

What amp settings (aside from crossover and gain) do you use / recommend for the h-frames?

Thanks,
Jim

rockdrummer

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Re: Rythmik Amp Settings for H-Frame
« Reply #1 on: 20 Dec 2011, 02:45 pm »
These are recommended settings Danny suggested for a Super-V owner.  The super v has an H frame in the bottom, and a servo amp running them.  Maybe this will help.



First your phase is off. Set the phase to between 180 degrees and a 3 o'clock setting on the dial. That will help a lot.

Next set your low pass filter setting in the middle setting where it says EXT/12. These maintains a 12db per octave slope that will match the roll off of the upper driver and allow only the crossover control knob to be the only thing selecting the frequency range.

In the 50Hz/24 setting it adds an additional 12db per octave slope at 50Hz. So in this setting the woofers will not play up high enough to reach the upper driver. This setting is for when you are crossing to main speakers below 50Hz.
Ben

Danny Richie

Re: Rythmik Amp Settings for H-Frame
« Reply #2 on: 20 Dec 2011, 05:54 pm »
Danny

What amp settings (aside from crossover and gain) do you use / recommend for the h-frames?

Thanks,
Jim

Phase will vary depending on distance from your main speakers and crossover point.

Extension filters and damping settings are up to you and your application.

JDUBS

Re: Rythmik Amp Settings for H-Frame
« Reply #3 on: 20 Dec 2011, 07:56 pm »
Thanks guys!

Dannie, how about for my application where I am crossing over to the mains at 300hz?

-Jim

Danny Richie

Re: Rythmik Amp Settings for H-Frame
« Reply #4 on: 20 Dec 2011, 08:14 pm »
Thanks guys!

Dannie, how about for my application where I am crossing over to the mains at 300hz?

-Jim

I'd start with the phase control turned all the way to the right and work back from there.

JDUBS

Re: Rythmik Amp Settings for H-Frame
« Reply #5 on: 20 Dec 2011, 09:03 pm »
I'd start with the phase control turned all the way to the right and work back from there.

Thanks, Danny.

How about for the other controls?:

Subwoofer Low-Pass - which of these?

50Hz / 24
EXT / 12
80Hz / 24

Extension Filter Freq - which of these?

14
28
20

Damping - which of these?

Low
High
Mid

-Jim

Danny Richie

Re: Rythmik Amp Settings for H-Frame
« Reply #6 on: 20 Dec 2011, 09:39 pm »
Since you are running these up to 300Hz you have to use the EXT/12 setting or they will never play high enough to reach your target.

The extension filter setting is up to you. How low would you like for them to play?

The same goes for the damping. Try each setting.

celebrat

Re: Rythmik Amp Settings for H-Frame
« Reply #7 on: 20 Dec 2011, 10:48 pm »
Danny
What crossover setting do you recommend with the Super Vs? Currently I am just over Hz

Danny Richie

Re: Rythmik Amp Settings for H-Frame
« Reply #8 on: 20 Dec 2011, 11:42 pm »
Danny
What crossover setting do you recommend with the Super Vs? Currently I am just over Hz

I typically set the dial between 90Hz and 100Hz.

celebrat

Re: Rythmik Amp Settings for H-Frame
« Reply #9 on: 22 Dec 2011, 10:35 am »
That's right where I set it too. My sub volume setting is at about 12:30. That must be a function of room size etc. I had it at 1pm and turned it down a hair.

Erpeder

Re: Rythmik Amp Settings for H-Frame
« Reply #10 on: 28 Dec 2011, 09:03 am »
Hi.
Where will you set the crossoverkontrol if the x-point is 300Hz to the upper speaker. My ribbon role off at 24db at 300Hz. the ext/12 role off at 12 db. the sub makes a overlap electric and 36db acoustic, is that right.

To set the delay right the spl have to highst output in listenpossion from the system, is that right.

Danny Richie

Re: Rythmik Amp Settings for H-Frame
« Reply #11 on: 28 Dec 2011, 03:37 pm »
Hi.
Where will you set the crossoverkontrol if the x-point is 300Hz to the upper speaker. My ribbon role off at 24db at 300Hz. the ext/12 role off at 12 db. the sub makes a overlap electric and 36db acoustic, is that right.

To set the delay right the spl have to highst output in listenpossion from the system, is that right.

Matching the ribbons roll off will be no problem.

Here is an in room response measurement of a pair of the SW-12-16FR woofers in an W frame and a test speaker that was also open baffle.



Note that achieving a steep acoustic slope was no problem. And this was using the EXT/12 setting.

Erpeder

Re: Rythmik Amp Settings for H-Frame
« Reply #12 on: 28 Dec 2011, 04:55 pm »
Thanks Danny.

But in wich possession will you set the control, I have set it in 120Hz. is that right. And what about the delay. I make the measurement in listen possession and turn the delay control to the highest spl. in my measurement about the x-overpoint. Is that right.   

As you can see Danny I am going back to the standard preamp in the plate amp. I`ts sound better this way, than by DSP.

Danny Richie

Re: Rythmik Amp Settings for H-Frame
« Reply #13 on: 28 Dec 2011, 05:12 pm »
Quote
But in wich possession will you set the control, I have set it in 120Hz. is that right. And what about the delay. I make the measurement in listen possession and turn the delay control to the highest spl. in my measurement about the x-overpoint. Is that right.   

The phase control (or delay) doesn't have an SPL level. It moves in degrees of phase rotation. The exactly placement depends on the phase shift induced upon your ribbon at the crossover point by its crossover. So where I have it set for a pair of Super-V's may or may not be best for your application. You really need to take the measurements varying the phase control with each measurement to see where you get the most coupling (not cancellation) of the woofers and ribbon. You might even have to turn the crossover point back some on the servos.

Quote
As you can see Danny I am going back to the standard preamp in the plate amp. I`ts sound better this way, than by DSP.

I think this was my recommendation from the beginning. You are simply not going to improve the original signal by passing it through electronics of this type. The more of that stuff you can get out of the signal path the better. 

Erpeder

Re: Rythmik Amp Settings for H-Frame
« Reply #14 on: 28 Dec 2011, 06:28 pm »
The phase control (or delay) doesn't have an SPL level. It moves in degrees of phase rotation. The exactly placement depends on the phase shift induced upon your ribbon at the crossover point by its crossover.
So where I have it set for a pair of Super-V's may or may not be best for your application. You really need to take the measurements varying the phase control with each measurement to see where you get the most coupling (not cancellation) of the woofers and ribbon.

You might even have to turn the crossover point back some on the servos.

I think this was my recommendation from the beginning. You are simply not going to improve the original signal by passing it through electronics of this type. The more of that stuff you can get out of the signal path the better.

Ok Danny it is that I was trying to say about spl. but it`s my english. When I say spl. I mean the coupling (one curve) I know there don`t are a control to turning up spl.
Ja I remember your  recommendation, but it was a must for me to try, and I know you where right.