Because a full range driver is full of compromises (no pun intended) that makes it unsuitable in a reference system. The 10F is considered to be a great full range driver, but it simply can't touch the sound quality of a top tier tweeter.
Plus, this speaker is point source. It's the best of both worlds. Read my first post.
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Lots of LT bass boost and amplifier power to get 35Hz extension and push the drivers to its limits. PR's used to reduce excursion on main woofers to reduce distortion and increase max power handling and bass output. Limiter used to protect the speaker from overloading and distortion and too much power.
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I haven't been updating because of the lack of interest, but since you asked, here's the progress.
The woofer has been upgraded to a custom spec'd Audio Technology woofer that greatly improved thermal handling for higher output and better sound quality over the Wavecor woofer.
The DSP has been switched over to a PC DSP system that allows for far more flexibility, power, and features over the miniDSP 2x4 HD that will enhance this speaker's sound quality quite a bit. It also cut down the wiring clutter dramatically compared to using 4 miniDSP's.
Experimentation on equal loudness curves, ambiance enhancers, and bass harmonic synthesis for <40Hz (below system tuning) and after excursion limit is reached, harmonics will fill in as the woofer output is clamped by the limiter.
This cabinet is a ton of work to make, and I'm still working on it. Additionally, the cabinet will have an automotive gloss finish that will look really nice.
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Hi Bcodemz.
Wish you every success with your project. The Wavecor is available readily here in Aust. Thankfully you moved to Audio Technology which should yield lower Distortion in the 40 to 100 Hz Bass. Wavecor good Audio Technolgy better & better set up to custom optimize. Expensive but with an all out no (less) compromise effort like this worth it.
Have you purchased the ICE modules yet? If not may I suggest the Hypex. Reason is they come reccomended by a mastering studio in QLD that purchased my Tannoy studio Monitors. From what I can gather accordig to studio mastering engineer Paul's tech they are simpler in circuit design and less colored than the ICE in sound. His techs assessment not mine. They are using the UCD 180 modules with Hypex PSU. Also which PC based DSP are you running?
Cheers Mark
Wish you every success with your project. The Wavecor is available readily here in Aust. Thankfully you moved to Audio Technology which should yield lower Distortion in the 40 to 100 Hz Bass. Wavecor good Audio Technolgy better & better set up to custom optimize. Expensive but with an all out no (less) compromise effort like this worth it.
Have you purchased the ICE modules yet? If not may I suggest the Hypex. Reason is they come reccomended by a mastering studio in QLD that purchased my Tannoy studio Monitors. From what I can gather accordig to studio mastering engineer Paul's tech they are simpler in circuit design and less colored than the ICE in sound. His techs assessment not mine. They are using the UCD 180 modules with Hypex PSU. Also which PC based DSP are you running?
Cheers Mark
Thank you! And yes I did get the ICEpower amps. I could not physically fit 4 NCores and a power supply in the speaker. Plus, I'm not picky about amps, certainly not picky enough to pay $3500 for 8 NCores and 2 PSU's. I also suspect a lot of the sound quality advantages over the ICEpower will disappear when powering drivers directly rather than powering passive speakers with many, many crossover components in between.
I am using JRiver as the PC DSP.
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Well I still can't fit UCD's inside the speaker! This is a travel speaker. I don't want to deal with external amps. Amps are tough... I need full power on the woofers, but I don't need 100+ watts on a midrange and tweeter. I wish they would make really small high quality amps that did like 10-20W for midrange and tweeter use, but unfortunately amp companies aren't as obsessed about small size as I am
I answered in my previous post on the PC DSP. I'm using JRiver as the DSP platform. It is quite unknown that JRiver can not only act as a DSP, but a really powerful one, probably because it is an absolute pain to use with many stupid quirks, but these are things that can be overcome by finding various solutions and hacks.
Cheers for that. Amps for active are an issue if you have to buy off the shelf. "Difficult it is" as Yoda would say. Sorry only skimmed through the post & missed the bit about the software. All I can say is I wish you all the best and hope the vision you have in your mind correlates to the reality you in the end create.
Oh, but there's lots of fish in the water. It just looks calm on the surface
It's funny how people manage to avoid nanoDIGI that has digital input, and 4xSPDIF outputs giving 8 audio chanels (although it has IIR filter, that i'm fine with)... Or nanoSHARC ftm.
Update thread for us - people that are interested in it, please. As for myself, if only one person makes something good of my writing, i'm happy with it. You are investing so much engineering into this, so it's unlikely that large number of people will understand or even try to understand the advantages of this concept.
cheers
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Hi Brian: For the past 3-4 years I've been slowly pursuing a compact 3-way monitor project that is very similar to your concept (¼ wavelength crossover frequencies, linear-phase, two woofers operated as opposed push-push), but done with passive crossovers and physical set-backs of the drivers (which are stacked vertically in a single line). The Wavecor woofer and Scanspeak midrange are the same as yours, but the tweeter is a customized Wavecor, and there are no passive radiators.
Rather than attempting to get the overall design perfect in one step and building only a single final version, we've been methodically building and testing various interim prototypes and are gradually evolving toward the final version.
Given that our prototypes are capable of reproducing square waves, and the listening tests so far have been quite favorable, most likely you will be extremely pleased when you get your final version.
best of luck and cheers
Rather than attempting to get the overall design perfect in one step and building only a single final version, we've been methodically building and testing various interim prototypes and are gradually evolving toward the final version.
Given that our prototypes are capable of reproducing square waves, and the listening tests so far have been quite favorable, most likely you will be extremely pleased when you get your final version.
best of luck and cheers
Thank you, and thanks to everyone for the compliments. The compressor, just like everything that changes sound (crossover, delay, volume control) is software based.
I do not disagree with this mastering guy (I have never argued about the accuracy of the sound reproduction with mastering guys, and will never...), but the difference between those amps are very small in my experience, especially ASX50 is more accurate than the many other Icepower modules @ low watt. Those accurate digital amps are great for accurate speaker project, no question about it.
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