Fender FR-12 Eq measurement and charts.

[WKSmith]

To get a mic placement well inside the convergance of the speaker, horn, and ports

I plotted the waveguide and cone angles, and went with 12" out from the grille . 4 3/4 down and 6 1/2 in from the right side

 

[WKSmith]

The band in red is the recommended "flat setting". All eq centered on 5 and with the cut control off ( CCW on 1)

The band in blue is as close as I could get it to a PXM kind of flat using the stock eq. I used these amp settings:

Treble 6
Middle 6.5
Bass 2.5
Cut 1

 

[WKSmith]

Here is what the eq is doing with each bands knobs at full min / max settings

 

[Deadpool_25]

Thanks man. This is great info!

 

[WKSmith]

Thanks man. This is great info!

Thank you! You helped me make a sound purchase.
I'm going to look inside at the preamp and the class D module next.

 

[yyz67]

Cool. Do you also have a PXM or CLR to compare measurements?

 

[skolacki]

Nice work and thanks for doing it!

 

[WKSmith]

Cool. Do you also have a PXM or CLR to compare measurements?

I wish! I haven't brought home either of those yet.

 

[WKSmith]

The Hanser Class D amp module. It's rated at 300 watts @ 4 ohms , but the speaker is 8 ohms. So actually150 watts. Which is exactly what the speaker is rated at.

Feed it +4db on the xIr in. And it is crazy loud.
... but still 150 watts.

Curiously that thing says Kustom on the bottom.

 

[Chewie5150]

This is great. Thx for sharing. Those are pretty much my exact settings I ended up with as well. The stock 'flat' was a bit hyped in the bass to my ears.

 

[Lysander]

The Hansen Class D amp module. It's rated at 300 watts @ 4 ohms , but the speaker is 8 ohms. So actually150 watts. Which is exactly what the speaker is rated at.

I've been wondering what kind of math Fender is doing to claim this is a 1000W amp. I kinda assumed the power module was 1000W and set up to run well below distortion... but no.

The tweeter amp is pumping a couple Watts at best. Which is fine, but it all adds up to ~150W. The back panel also claims a maximum power consumption of 350W.

 

[WKSmith]

I've been wondering what kind of math Fender is doing to claim this is a 1000w amp. I kinda assumed the power module was 1000w and ran well below distortion... but not.

The tweeter amp is also pumping a couple W at best. Which is fine, but this adds up to ~350W, which is exactly what the back panel claims too.

I think they need to measure these hot little class D amps in BTUs

 

[Jkist7]

Were these tests done in an acoustically treated room, or are we seeing the room response in the graphs? Either way, this is helpful indeed! Great to get a visual idea of exactly what the speaker is doing to the signal passing through.

 

[WKSmith]

Were these tests done in an acoustically treated room, or are we seeing the room response in the graphs? Either way, this is helpful indeed! Great to get a visual idea of exactly what the speaker is doing to the signal passing through.

My room is not heavily treated, but the impulse time is set low enough to not catch much room in the sine sweeps .

It's just a quick set of reference plots. I would love to see someone shoot them in a nice room.

 

[marsonic]

These measurements make sense with what I heard, so...yeah. Awesome.

Not really FRFR...I'd cheerfully call it full-range cab-response that works pretty darn well with IRs. The 12dB swing between like 2.5k and not quite 3k is the annoying/frustrating part to me.

Dumb question...what happens to that swing if you flip the polarity of the tweeter?

 

[WKSmith]

Dumb question...what happens to that swing if you flip the polarity of the tweeter?

That's a good question! It would be an interesting test.
That notch is common with lot of two way systems at the crossover point. It's usually closer to 5k though.

 

[yyz67]

The notch (if due phase cancellation) might be sensitive to measurement position. Listening 5+ feet away in a room might be a different story.

 

[Lolo-G]

I've been wondering what kind of math Fender is doing to claim this is a 1000W amp. I kinda assumed the power module was 1000W and set up to run well below distortion... but no.

The tweeter amp is pumping a couple Watts at best. Which is fine, but it all adds up to ~150W. The back panel also claims a maximum power consumption of 350W.

I asked myself the same question with the Headrush 108

 

[Sixstring]

View attachment 128159
The Hanser Class D amp module. It's rated at 300 watts @ 4 ohms , but the speaker is 8 ohms. So actually150 watts. Which is exactly what the speaker is rated at.

Feed it +4db on the xIr in. And it is crazy loud.
... but still 150 watts.

Curiously that thing says Kustom on the bottom.

Ok so Fender ran out and put Kustom amp parts for their FR solution?

 

[Lysander]

Ok so Fender ran out and put Kustom amp parts for their FR solution?

The power section is built by Hanser (https://hansermusicgroup.com/), a OEM specializing in pro audio solutions, and it's likely a custom design for Fender.

They also currently own the Kustom brand.