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Search: Posts Made By: diy speaker guy
Forum: DIY Speakers and Subs   05-20-2015, 11:53 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
Agreed. 100 percent. That's...

Agreed. 100 percent.



That's irrelevant to the subject of bad specs. Specs are everything when that's all you have. Until a couple of days ago, specs and a whole lot of hot air and hype WERE...
Forum: DIY Speakers and Subs   05-20-2015, 11:46 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
It is by klippel standards. Le causes distortion...

It is by klippel standards. Le causes distortion and it is a limiting factor to xmax, along with the other things you mentioned and IM distortion.

If you want to claim "klippel verified" you have...
Forum: DIY Speakers and Subs   05-20-2015, 10:02 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
Apart from that claim, the xmax spec is wrong. ...

Apart from that claim, the xmax spec is wrong. Sundown clearly stated the SI 24 is limited to 20 mm xmax by Le. Want a link? He posted the Klippel graph that shows it too.

This is a huge...
Forum: DIY Speakers and Subs   05-20-2015, 09:47 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
Really? REALLY!?! You don't think specs are...

Really? REALLY!?!

You don't think specs are important? Who's going to test all the rest of the drivers in the world to make sure manufacturers post reliable specs?

Clearly from this thread...
Forum: DIY Speakers and Subs   05-20-2015, 08:25 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
True, I have a large amount of posts in this...

True, I have a large amount of posts in this thread, but they are almost all responses to other people poking at what I've said or asking questions. As far as I'm concerned it could have ended at my...
Forum: DIY Speakers and Subs   05-20-2015, 06:21 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
If the sealed box is too small max output will...

If the sealed box is too small max output will change since it often requires too much power to push it to xmax in the very small sealed box. The larger box boosts efficiency and it doesn't require...
Forum: DIY Speakers and Subs   05-20-2015, 05:37 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
Any driver can be used in IB (or any size up to...

Any driver can be used in IB (or any size up to IB). IB (or very large sealed) is almost always a better choice than small sealed unless size is a concern.
Forum: DIY Speakers and Subs   05-20-2015, 05:34 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
The measurements show it's pretty close to a pair...

The measurements show it's pretty close to a pair of TCs in small sealed boxes. So no, it does not equal $3000 worth of TCs in ported boxes, not even close, at least above tuning.

Not sure what...
Forum: DIY Speakers and Subs   05-19-2015, 07:05 PM
Replies: 207
Views: 5,490
Posted By diy speaker guy
As far as I know there are 4 ways that...

As far as I know there are 4 ways that manufacturers use to spec xmax.
1. Most popular, at least until recently was to specify xmax using physical coil and gap measurements.
2. More recently,...
Forum: DIY Speakers and Subs   05-19-2015, 06:49 PM
Replies: 207
Views: 5,490
Posted By diy speaker guy
I don't recall SI ever making that claim, but I...

I don't recall SI ever making that claim, but I don't recall him ever correcting the people that were making that claim either.

CEA specs don't tell you much about how the sub will perform with...
Forum: DIY Speakers and Subs   05-19-2015, 10:11 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
??? I've never had an HT18, I can't recall...

???

I've never had an HT18, I can't recall wanting SI to do anything with the HT18, and I don't know which "you guys" you are referring to. I've never met anyone on this forum and there's only 1...
Forum: DIY Speakers and Subs   05-19-2015, 08:38 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
I do prefer horns, so what? This has nothing to...

I do prefer horns, so what? This has nothing to do with anything. What I prefer most of all is accurate specs.

I'm not recommending ANY driver, at most I'm comparing drivers, so where is my...
Forum: DIY Speakers and Subs   05-19-2015, 08:27 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
Dayton bases xmax on motor measurements. Other...

Dayton bases xmax on motor measurements. Other manufacturers use a correct Klippel verified rating. SI uses a Klippel but it's not a verified Klippel rating, it's only the Bl graph, arguably the...
Forum: DIY Speakers and Subs   05-19-2015, 07:38 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
No, data-bass can't measure xmax. The best he...

No, data-bass can't measure xmax. The best he could do with the equipment he has is try to measure excursion and relate that to distortion measurements, but it's very hard to measure excursion...
Forum: DIY Speakers and Subs   05-19-2015, 07:29 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
The problem is NOT price, the problem is honesty,...

The problem is NOT price, the problem is honesty, integrity, and accuracy in specs. If you don't think that's a problem that's fine. I think it's a huge problem.

Price does not indicate...
Forum: DIY Speakers and Subs   05-19-2015, 07:25 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
If you consider the SI 24 xmax spec is inflated...

If you consider the SI 24 xmax spec is inflated to more than twice it's actual klippel rated value (Le limited to 20 mm) there's a whole slew of drivers that beat it.

But even if you take the...
Forum: DIY Speakers and Subs   05-19-2015, 06:45 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
In anticipation of yet another wave of hate mail...

In anticipation of yet another wave of hate mail for being to hard on SI, let me explain my position one more time.

My only concern is honesty and integrity and accurate specs, especially from the...
Forum: DIY Speakers and Subs   05-19-2015, 05:56 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
I don't know what you say in your emails but you...

I don't know what you say in your emails but you seemed more than happy to fuel the hype about this driver shutting down 7000 watt amps with no mention of power compression or possible thermal...
Forum: DIY Speakers and Subs   05-18-2015, 12:31 PM
Replies: 207
Views: 5,490
Posted By diy speaker guy
For two years I've been trying to insert a bit of...

For two years I've been trying to insert a bit of reality about this driver. Starting with SI's (false) claim that it's the highest displacement driver on the planet, followed by the (false) xmax...
Forum: DIY Speakers and Subs   05-18-2015, 12:22 PM
Replies: 207
Views: 5,490
Posted By diy speaker guy
Sure, and I was just wondering. At some points...

Sure, and I was just wondering. At some points it's a lot higher than 5 too. If you are going to use anything other than Re though it's usually good to say what frequency(s) you are looking at.
Forum: DIY Speakers and Subs   05-18-2015, 12:20 PM
Replies: 207
Views: 5,490
Posted By diy speaker guy
http://www.diyaudio.com/forums/subwoofers/250032-o...

http://www.diyaudio.com/forums/subwoofers/250032-old-school-horn-vs-modern-vented-box-8.html#post3797901

You might need to be a member to see those pics. If so, I'll describe them. It shows the...
Forum: DIY Speakers and Subs   05-18-2015, 11:30 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
The warranty is not EVER going to cover a melted...

The warranty is not EVER going to cover a melted coil regardless of whether the user used a 100 or a 20000 watt amp, and regardless of whether the sub was presented dynamic country music with very...
Forum: DIY Speakers and Subs   05-18-2015, 10:35 AM
Replies: 207
Views: 5,490
Posted By diy speaker guy
It's not really an issue of idiots doing stupid...

It's not really an issue of idiots doing stupid things. Ideally power handling ratings should mean something. If you look at pro drivers like B&C and 18 Sound their power ratings DO mean something...
Forum: DIY Speakers and Subs   05-17-2015, 09:18 PM
Replies: 207
Views: 5,490
Posted By diy speaker guy
This is not a mass or fs issue. The graph I...

This is not a mass or fs issue. The graph I posted showed the SI 24 (fs 18.1) and the TC Ultra (fs 20.5). Both those were measured by data-bass and the difference is 2.4 hz. But note the MASSIVE...
Forum: DIY Speakers and Subs   05-17-2015, 09:07 PM
Replies: 207
Views: 5,490
Posted By diy speaker guy
I always get the details of this wrong, but IIRC...

I always get the details of this wrong, but IIRC N8DOGG burned a couple of SI HT18s with a couple of 500 watt amps, less than the rated power of the drivers. It IS possible, and actually likely for...
Showing results 1 to 25 of 563

 
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