Is it possible to cover the whole spectrum, high spl, low distortion with a 2-way?

[4real]

Originally Posted by phase_accurate

Well, you said it was "loud" and k2 is below 1% and the higher order harmonics are even lower.

If the frist squiggle line is k2, then it's not below 1%, it at about -35dB, so around 1.8% actually. Now that doesn't mean it's bad because we don't know the actual level..

Here is a plot of a HF146 on XT1464 with correctly marked levels:

That is at about -40dB at 105dB, which is about 1% even down to 500Hz. That is not to shabby for home usage I'd say.

[daemonsgr]

Originally Posted by mark100

Why do you want an 8 ohm ?
I always choose a 16 ohm, because I know I have to pad down a CD to mate with whatever drivers are used below, even at 16 ohms.

(not an expert so more advice is alway welcome!)

The LF is a 2226h in a 120-130L BR tuned around 38hz. Doing the CAD design at the moment and waiting for the LF delivery (in like a month...).

I though that its better to keep Ohms to 8 as its the easiest for most apms to drive (including a little tube for example), I might be wrong thought.

Cen you elaborate on the pat down? Will some attenuation get the impedance to half?
thanks

[phase_accurate]

If the frist squiggle line is k2, then it's not below 1%, it at about -35dB, so around 1.8% actually. Now that doesn't mean it's bad because we don't know the actual level..

You have to look at the HD scale when you interpret that graph.

That is at about -40dB at 105dB, which is about 1% even down to 500Hz. That is not to shabby for home usage I'd say.

No - that is not too bad and it is actually the driver that I am using. Although the HF144 should be a little better in this respect according to what I have read. But the HF146 is a bit more linear from the frequency response POV.

Regards

Charles

[Audio Elite]

Originally Posted by jzagaja

Can be crossover - improved I posted above will be tested.

I love this driver, especially the 4592 dedicated mid driver. In the right horn and well designed crossover, it is super smooth and has incredible midrange detail and clarity.

[AllenB]

Originally Posted by phase_accurate

HF146

If the 29 degree exit is as they say, this would change the face of waveguide needs for this driver.

[phase_accurate]

The exit angles of the Faital drivers are differing quite a bit between their models. Interestingly all the published frequerncy response curves are measured on the LTH142 waveguide.

Regards

Charles

[Ro808]

Originally Posted by Audio Elite

I love this driver, especially the 4592 dedicated mid driver. In the right horn and well designed crossover, it is super smooth and has incredible midrange detail and clarity.

My comments wrt the BMS were a bit harsh.
For lower SPLs at home, the reported distortion is problably less problematic.

I mostly buy drivers with an excellent reputation among pro users.


While I have little doubt the DCX464 will beat the BMS coaxials, it's still a (compromised) product developed with specific PA applications in mind, for which high output and portability are major design considerations.

This BI-AMPED LINE ARRAY 1600W + 640W - 147 DB SPL (PEAK) is such a product:

[AllenB]

Originally Posted by phase_accurate

Interestingly all the published frequerncy response curves are measured on the LTH142 waveguide.

Hmm, maybe not ideal, but I would hope that what's important can transcend this limitation..

[Ro808]

Originally Posted by phase_accurate

The exit angles of the Faital drivers are differing quite a bit between their models. Interestingly all the published frequerncy response curves are measured on the LTH142 waveguide.

Regards

Charles

Up to about 10 degrees variance in exit angles with a slow flaring horn doesn't make much difference.

[Ro808]

Originally Posted by daemonsgr

I though that its better to keep Ohms to 8 as its the easiest for most amps to drive (including a little tube for example)

SETs and other low power tube amps like higher impedances.
You'll need KT88s and similar heavyweights to breath life into typical PA woofers such as the 2226.

A 15PR400 is the better option for low power tube amps.