RAV-1 will be released at RMAF with a special price.

RAW · « **on:** 23 Sep 2006, 07:33 pm »

Yes the RAV-1 is almost finished a update will come very soon.
These will be released at RMAF.

So far Danny is

Thermopylae · « **Reply #1 on:** 23 Sep 2006, 08:34 pm »

Which woofer will these be using? Any news on the other RAV speakers?

Danny Richie · « **Reply #2 on:** 23 Sep 2006, 10:39 pm »

These use the new M-130X.

I only received four of them that were air mailed over for samples. Actual production units won't be ere for another 5 to 6 weeks. I used the pre-production samples to design the RAV-1.

They sound killer good. The vocal range is exceptionally clean. Imaging is excellent as is layering of the sound stage. This is one of the best sounding small stand mounted speakers that I have heard.

zybar · « **Reply #3 on:** 23 Sep 2006, 10:42 pm »

What is the price?

George

Danny Richie · « **Reply #4 on:** 23 Sep 2006, 10:48 pm »

Quote

What is the price?

I guess I better get Al a total for the parts so that he can get a total for the kit. I think you'll really be surprised at how reasonable it will be.

Here are some measured responses.

You gotta love that fast and clean decay rate. It has really low distortion too. That woofer is really clean in the vocal region.

Thermopylae · « **Reply #5 on:** 23 Sep 2006, 11:07 pm »

Any chance the M-165X will be used in a larger bookshelf?

Danny Richie · « **Reply #6 on:** 24 Sep 2006, 12:53 am »

How about a small floor standing model using the M-165X that will hit a -3db down point around 35Hz?

RAW · « **Reply #7 on:** 24 Sep 2006, 03:46 am »

George.
The kit price will be up soon

And yes we have the RAV3S coming down next.
These will both match our RA8 for a complete Home Theater package as well.
Just think of these packages
-3 RA8 across the front plus RAV3S for the rear 2 or 3 or 4 depending on 5,6 or 7 channel
or
-6 or 7 of the RAV3S for a full surround package
-2 RAV3S for front and rear center plus 4- 5 RAV1 for surrounds.

Hank · « **Reply #8 on:** 24 Sep 2006, 09:30 pm »

Quote

How about a small floor standing model using the M-165X that will hit a -3db down point around 35Hz?

I may have a customer for a finished pair. That size is about what she needs. When will that design be finished and kits ready?

Danny Richie · « **Reply #9 on:** 25 Sep 2006, 12:43 am »

Well, it will be at least three more weeks for the woofers to get here but I do have some samples that I can work with. Get Al to send me some boxes to do the design work with and they can be ready pretty quick.

Maybe Al can work out the box plans and get them to you. Then you can build the boxes and send them up to me for crossover design. I have a few woofers that were air mailed in and a couple of Al's tweeters too.

The box plans, volume and tuning, is easily calculated from the T/S parameters.

Maybe we can make a killer deal to the guy that sends boxes.

Loftprojection · « **Reply #10 on:** 25 Sep 2006, 11:23 am »

Man those do look good. Wouldn't it be interesting to offer an "upgrade" kit for current AV boxes owners! Same boxes as the AV3-3s-2-1rs, just swap the speakers/xover and boom, a whole new level of sound!

Good work Danny!

Hank · « **Reply #11 on:** 25 Sep 2006, 05:54 pm »

Quote

The box plans, volume and tuning, is easily calculated from the T/S parameters.

Okay, send me the params and I'll plug 'em into a couple of programs and see what volume looks like. Ported, I assume?

RAW · « **Reply #12 on:** 25 Sep 2006, 06:01 pm »

Hank here you go.
Danny has them posted on the XBL llink on the forum.
Yes ported design.

M-165X parameters:

Fs 40.1152
Fs Added Mass 22.8066
Added Mass 25.0000
Diameter 132.1000
Re 5.6000
Rms 1.0990
Qms 2.7385
Qes 0.5260
Qts 0.4413
Cms 1.3183
Mms 11.9399
BL 5.6603
VAS 34.5789
dBSPL 88.3001
L 1kHz 0.8683
L 10kHz 0.3618
SD 0.0137

Hank · « **Reply #13 on:** 27 Sep 2006, 05:24 pm »

Thanks Al

What's the Xmax?

Danny Richie · « **Reply #14 on:** 27 Sep 2006, 06:28 pm »

7.8mm each way.

poseidonsvoice · « **Reply #15 on:** 27 Sep 2006, 06:50 pm »

Danny,

New to your forum here, I am a die hard tube diy builder and have always been enamoured by your design expertise as well as the products from RAW acoustics. An example of my preamp is shown on the left next to my moniker. You can also see pics here: http://www.audiocircle.com/index.php?action=gallery;area=browse;album=615

I was wondering:

1) Will the new M130X woofers supplant the drivers in the OB-5? An X-max of 7.8mm is awesome for a 5 inch driver! That's what XBL-2 is all about

!
2) Will the RA-1 tweeter replace the BG tweeter?
3) Can you offer the OB5 non-ported for those of use who own extreme subs like sealed Adire Tumults?

This would be a nice system with a pair of push pull KT88's or 300B's aa

I think your design work is great and am really pleased that you publish frequency/impedance and off axis response curves. Nothing to hide. The open baffle technique is really cool but you managed to pull it off while making the speaker look room friendly as well

.

Best

,
Anand.

Danny Richie · « **Reply #16 on:** 27 Sep 2006, 07:30 pm »

Quote

1) Will the new M130X woofers supplant the drivers in the OB-5? An X-max of 7.8mm is awesome for a 5 inch driver!

It can't. I am only going to be bringing in the M-130X in 8 ohms to start with. The woofers in the OB-5 are the M-130/16 (16 ohm woofers).

Quote

2) Will the RA-1 tweeter replace the BG tweeter?

No. The OB series speakers will only be using the Neo 3 pdr.

Quote

3) Can you offer the OB5 non-ported for those of use who own extreme subs like sealed Adire Tumults?

Quite the opposite. If you are crossing it to s sub then you want the woofers to be ported. Ported (in the OB-5) they will hit a -3db down point of 45Hz. The lower you can cross to your sub the better they will integrate.

With sealed boxes the M-130/16's will be -3db down in the 80Hz range. That would be way to high to be playing your subs. You'd need a pair of them and need them near each speaker to get them to integrate.

Us the OB-5 as is and set the crossover point on your Tumult to about 40Hz.

poseidonsvoice · « **Reply #17 on:** 27 Sep 2006, 11:44 pm »

Quote from: Danny on 27 Sep 2006, 07:30 pm

Quote
1) Will the new M130X woofers supplant the drivers in the OB-5? An X-max of 7.8mm is awesome for a 5 inch driver!

It can't. I am only going to be bringing in the M-130X in 8 ohms to start with. The woofers in the OB-5 are the M-130/16 (16 ohm woofers).

Quote
2) Will the RA-1 tweeter replace the BG tweeter?

No. The OB series speakers will only be using the Neo 3 pdr.

Quote
3) Can you offer the OB5 non-ported for those of use who own extreme subs like sealed Adire Tumults?

Quite the opposite. If you are crossing it to s sub then you want the woofers to be ported. Ported (in the OB-5) they will hit a -3db down point of 45Hz. The lower you can cross to your sub the better they will integrate.

With sealed boxes the M-130/16's will be -3db down in the 80Hz range. That would be way to high to be playing your subs. You'd need a pair of them and need them near each speaker to get them to integrate.

Us the OB-5 as is and set the crossover point on your Tumult to about 40Hz.

Really? That's interesting. I've always been taught that you should seal the ports to get a second order rolloff which would be easier to crossover with a sub. However, the sub would be rolling out a 12dB/octave which means too much high frequency junk coming out of a sub that should be rolled out sooner. But, this puts demands on the satellite speakers which is why I guess you have two 5.25 inch drivers taking care of the midbass. Needless to say, the OB-5 is a fine design. I do have a pair of subs and I was going to place them very close to the speakers. I might try both ways and see which one I like best.

Any idea how much enclosures are going for? I can solder the crossover together pretty easily, I just need somebody to build the enclosures (for a reasonable price!).

Thanks,
Anand.

Danny Richie · « **Reply #18 on:** 28 Sep 2006, 01:23 am »

It is true that it is good to match the roll offs in each direction.

A sealed box woofer will roll off at 12db per octave and having a sub woofer plate amp with the same roll off will match that, but more importantly is the wavelength that they are crossing and the distance that they are apart. In other words, how well they are in phase.

Now what if your sub has a 18db or 24db crossover slope? Then the ported box will allow the smaller woofer to play flat longer then fall with a sharper 18db per octave slope or greater matching the plate amp even better than gradual slopes.

The higher you cross them the shorter the wavelength. So they won't have to be to far apart to cancel one another out. A sub might be in phase with one speaker and near out of phase with the other due to distance. Variable phase controls on the sub amp doesn't help very much if the sub is a lot further away from one speaker than the other. Which then do you adjust it for?

If running them up very high then using a pair is a wise choice.

Still the lower that they are crossed the easier they will blend.

Al posted some cabinet prices here: http://www.audiocircle.com/index.php?topic=29942.10

Hank · « **Reply #19 on:** 28 Sep 2006, 01:41 am »

Quote

Will the new M130X woofers supplant the drivers in the OB-5? An X-max of 7.8mm is awesome for a 5 inch driver!

Correction: 7.8mm is the X-max of Danny's M-165X, NOT the M-130X.