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Nice progress! Nice to have some measurements for on and off axis response. Shows that two listeners on the sofa will receive the same notes:).

Thanks,
Scott

The current setup has the 2451 with a D8R2450SL. The weekend is shot for doing anything audio, but will try early next week.

Thanks,
Scott

Thanks for the confirmation, This echo's what I read here on AudioScienceReview. I still need to try this on my active setup. Can I assume I will be able to achieve this same tilt with the 2451...

This is really good stuff Ian, thank you for sharing all of this.

Thanks,
Scott

Thanks for the kind words. I also look forward to what Ian's comes up with, weather permitting.

Thanks,
Scott

Ian and Robh,

Thank you for taking the time and posting this, it is much appreciated.



Ian,

Currently I'm using a 2451 with D8R2450SL diaphragms. The M2 waveguides are attenuated through...

Hi Earl,

The file is a .tzz

Thinking about it some, I'd really like to figure out why my HP desktop computer isn't picking up the microphone input from REW during the shorting test. The front...

Hi Ian, thanks for the posts. My original thoughts were for a passive on the M2 waveguide with a 4" compression driver only. Unfortunately I sold the D2's so would be unable to provide any useful...

Hi Earl,

Sebackman was extremely gracious and provided the impedance curve he had made a while back. The file zipped is 6mb so too large to attach. What is the preferred method for transfer over...

The passive crossover progress has slowed due to other house projects, mainly converting half of the current listening room into another bedroom.

The parts were ordered for the impedance plots but...

If those REW instructions are correct I should be able to figure it out. I've got some good plots I can compare mine with to see if mine are correctly done.

I don't plan on designing any more...

Similar to this? https://www.roomeqwizard.com/help/help_en-GB/html/impedancemeasurement.html

If so I'll need to order the non-inductive resistor.

Thanks,
Scott

Thanks Earl, good thing I asked. I appreciate the help and hopefully other will be able to use it as well. I’ll be using REW if that’s ok. I don’t recall what the distance of the microphone should be...

Hi Earl,

Finally ordering parts for a trial run. Is R1 supposed to be 0.250 Ohms?

Also I always kept the resistor total wattage values around 20-30 watts (using multiple resistors), assuming...

Hi Steve,

Sorry my mind was on the 2451's that are currently installed, not the D2's I used to have in them. My plan was to keep the 2216nd full active and run the top passive. I can't believe...

EarlK was the one who gave me the great starting point that I still have plans on trying this summer.

Thanks,
Scott

Very Nice!

Very nice work!

Not that I know of. I'm finally in the process of getting rid of unused gear so I can purchase another pair of 2216nd's for another project.

Are you planning on using the D2's? Me and others have...

Nice work both of you!!!!

Hi Earl,

This is a great addition to the thread, thank you for taking the time to post this for me and others. I do know of one other person this may be helpful for.

Future reference question -...

Hi Earl, thank you for taking the time to respond.

I would love to design a passive crossover with someone here but unfortunately with young children that is not a possibility for me right now....

Did you ever see how close these were to each other?

Looking good!!

Looks good, thanks for sharing. I look forward to hearing your impressions of the crown dci. What network will you be using with the 2452sl?