Brahma this, Brahma that...

[kbog]

Since I heard the Brahma (Ryno's), I have been reading tons on it. So many people love it and yet a lot of people are finding problems too.

Dan Wiggins is saying about 3% of the sales are showing problems and under 1% are defective. I believe that.

He is also saying that the tinsel slap is only on the 12" brahma around 48 hz and only when it is pulled back beyond 28mm which is beyond the limits of excursion. This leads me to believe that Ryno's sub is not showing slap, but rather something else which is causing vibration.

There is NO WAY that the sub was at full excursion at the volumes it was vibrating at. They were normal listening levels when the vibration first started to occur. Ugh. This needs resolution.

Ryno, what is the latest???

[JohnBlayz142]

after talking to him, it doesn't seem like he is a very pleased customer...

[kbog]

After hearing it, I would not be either. The noise completely ruins that fact that the sub sounds great.

Does that make sense at all?

[DanWiggins]

Couple of things:

1. There is quite a bit of slack in the tinsel leads. The only way to break them is to pull them tight, which happens at high excursion. There is simply no other way to pull the leads loose. Note that a single loud kick drum can result in a peak that is 2-3 times what the eye will pick up (the decay part will be much lower in amplitude, but is what is visible).

2. Make sure you have completely eliminated box issues. I know KingJamez fought a nasty buzz issue for days before isolating it to the box.

3. If all else fails, contact your dealer about service. If you have a problem and can't solve it, contact your dealer - they can help you (that's what you pay them for).

Thanks,

Dan Wiggins
Adire Audio

[JohnBlayz142]

im not tryin to say anything, but i have heard of problems with the brahma before, and it just doesn't seem appealing...from mroe than one person...

almost makes me hesitant towards considering purchasing one

[geolemon]

I definitely agree with you, JohnBlayz...
And I am sure Adire hears these concerns, I wouldn't doubt if you see the very next release of the Brahma addresses these issues publicly!

But it really is an issue that I think can be worked around, it wouldn't STOP me from buying one...
I have thought of several ways that I might attempt to solve that sort of issue, if I encountered it, if I had one... it's not a "make it or break it"...
Although it can be annoying for sure!

But I think the Brahma is enough of a "super sub" at a reasonable price to still make it very worth it...

And like Dan says, if you don't think the issue is within "normal" tolerances (or even what is acceptable to you), deal with the dealer!

Good luck to Ryno, I will be looking forward to hearing what he finds out (as MANY people here will be looking forward to as well!)..

[kbog]

Dan,

It must be easy to read posts like mine and feel defensive. You believe in your product as you should. Understand I'm not trying to bash you or your products. Neither am I trying to tarnish Adire's reputation.

I'm simply speaking honestly as I always try to do.

The leads are not broken. They are fine. The only evidence of breakage is a small blue band just above the point where the lead is glued to the cone. This band looks to be there to hold the two leads together at the point of insertion. Part of the band is in the glue, part is not. It appears ripped apart. This does not appear to be the cause of the noise however. It might even be that way on purpose - I don't know.

Also, we eliminated the box from the equation. The speaker makes the same noise when played free air. It is coming from the speaker. Somehow, it is probably lead slap, though I can't figure out how with that pad there. It only does it at a specific frequency though.

Johnblayz142,

Don't discount it yet. Underneath that rattle was a very nice sounding speaker (if you believe that). It was VERY impressive to say the least. I liked it better than the 13W7 I recently heard. If this problem is cleared up as I'm sure it will be, this driver should still be top of your list. If it is not cleared up and is a indeed a product flaw, look elsewhere. Time will tell.

[sandt38]

hey fellas,

Ive been doing some investigation of the slap and have found a couple of things thanks to the inverted install. First, when I started to play mine it had almost no slap, then it began after a couple of weeks. Being in my trunk I never really minded it as it is inaudible. With Ryans complaints though, I used the inverted install to our advantage. I feel the suspension becomes a bit more compliant after a good banging, so maybe it's time to take the gains down a tad. I took mine down about 1/2 volt. Next is the wear I am seeing on the tinsels. It seems the tinsels are slapping the spider itself, rather than the cone. I will glue some cotton to the spider today and see what effect it has on the driver slap. Also, the tinsel mounts are in a 60 degree or so bend off the back of the binding posts. I bent mine to about 80 degrees and it helped some of the slap as well. I also noticed the pad on the cone has shifted. This is due to overexcursion of the cone. The tinsels are coliding with the spider and the cone, forcing the pad toward the surround. This, I feel, is due to the suspension becoming more compliant, and should be able to be corrected by resetting gains after suspension break in occurs. I'll continue to look for remedies to the slap and let you know what I am coming up with as I go.

Don't be discouraged Ryan. We'll work out some remedies for the problem. I'm working as hard as I can to get you taken care of by the end of this weekend. Just think of how good it really does sound, and how loud it is!!!

[sandt38]

Fellas, I have a fix. I have little time right now, but I will post the fix and some pics of the fix, most likely tomorrow. I have a busy night.

[kbog]

:headbang:

Good news for Ryno