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Indeed! :applaud:

Made my day! :thmbsup:

GT used electrolytics for the larger values and put them in parallel with smaller Solen caps to achieve the correct total capacitance. It is a way to cut down on cost and size.

The quick "fix" is to:
1. Change R9 from 3.6 ohms to something like 10 ohms. This props up the response in the 1k to 2k region.
2. Add a 30 ohm rheostat ala 4430 right before C7 and set it to...

They should sound fantastic! :)

I entered your network into LEAP along with my data and it came out great. Gotta love that top end from the Mg. :) Thank you for reposting this information!

I will probably use a modified version of the biased 4367 network should I decide to follow through with the LCR plan.

Nice!

And it looks like you guys figured out two 16 uF capacitors in series for the biased version of the network.

Nice Rob! :yes:

Yeah, I might have an issue with the 476Mg I measured. Hopefully I'll be able to check it in the next few days.

Did you use ideal inductors in your model or did you apply some...

Yes. I am not liking the looks of the 476Mg. I played around with the data - gating, smoothing, etc and the D2430K looks fine, 476Mg not so much.

I'll measure the other 476Mg at the same time I...

Right, I didn't gate the posted curves above nor did I measure them outside (raining) like I usually do. I didn't like how the gating affected the response around 500 to 1kHz. Usually I use tail...

I did a quick shot of the 476Mg versus the D2430K on the M2 waveguide. I needed the impedance curves so I figured I'd collect some SPL curves at the same time.

Nice! :yes:

All I am saying is that I am glad people are finding what they consider to be viable alternatives to the D2430K. Other compression drivers will very probably require different compensation but it...

Agreed :)

And I think it is fantastic that the Truextent and the 2450 are available.

When the D2 was first introduced it had a parts price of $1,499 and a finished goods price of $1,999. The new, and correct, price point puts the transducer in a completely different perspective. Your...

I received my three very recently. Ordered them last April, waited the obligatory year for delivery.

Mine too.

I am actually looking forward to building some boxes this summer.

That's one VERY expensive network. Kudos to you for spending the money to find out the actual values. :applaud:

Don't forget to charge-couple them! If they are in the path of the signal then they...