Thanks for this review. I was really curious about this driver.

I appreciate the consistency and objectivity of your testing. Having heard this driver as part of the Klipsch Jubilee, it was a bit of a let down. This review gives support to what I experienced. Thank you for your contributions to the audio community.

Great video.

These are such an interesting design.

I run 2050's on a 402 horn lense, but I start to hand off around 7500ish to tpl200 amt drivers. Bass bin is a professional folded horn and time delay and filters are handled by a dsp

Thank You 🙏

Interesting how Klipsch chose it for their flagship heritage horn system. The mid/high horn they use has loading and pattern control below 300Hz, and it has a hybrid expansion shape between conical and tractrix. I am guessing they squeezed out as much as they could and the end result, in balance, is good enough in the treble.

@JosephCrowesDIYSpeakerBuilding

Жыл бұрын

That would be a careful balance for sure. Thx.

@marcogea1974

Жыл бұрын

Not sure good enough for whom. I listened to the Jubilee system at Munich High End 2023 and it sounded like CR@P. No other way to put it, honestly.

@Schubeedoobee

Жыл бұрын

The jubilee 402 Horn lens has existed in its present configuration for many many years... all they did was to add the axi2050 to it and in addition Roy Delgado designed a phase extension plug that handles waves beyond the throat size.

@rongoodman8874

Жыл бұрын

12k is good enough for their demographic and honestly for us all.

Would the driver's characteristics be improved by running it biamped with active eq? Does it need the improved damping factor to tame itself?

Very nice analysis. Do you use a Dats impedance measurement of drivers to design L pads or just the nominal impedance?

@JosephCrowesDIYSpeakerBuilding

Жыл бұрын

It’s designed with the driver’s impedance in mind.

hi, congratulations for your videos, I have a question to ask, have you ever tried the Beyma Cp800ti compression driver in a 290?

@JosephCrowesDIYSpeakerBuilding

Жыл бұрын

No, but it looks on paper to be very similar to the RCF ND950. You can check that out in my recent blog. josephcrowe.com/blogs/news/2094

It pretty much does as well as I expected. It is relatively easy to produce a great mid range driver but trying to go to 20k is almost impossible and completely pointless. Maybe better performance can be obtained by setting the simulation for the Axi membrane to 12kHz - 13kHz. There is nothing past that anyways.

@JosephCrowesDIYSpeakerBuilding

Жыл бұрын

Nearly all the IMD products in the upper treble are a result of lower band test tones. It’s not been my experience to see higher frequencies modulating downwards, at least not significantly enough to impact the overall result.

@interesting7906

Жыл бұрын

@@JosephCrowesDIYSpeakerBuilding Exactly. Maybe that's why vintage horn sound so great. Allowing 20k is only a venue for IM products to become audible. I have yet to hear an instrument producing 15kHz frequency and at my age, that opportunity is long gone.😂

Really appreciate your review. I have lived with this driver now for 3 months and my subjective experience corresponds with your measurements. On my third pair of horns now and have found an acceptable example...a biradial but of alarming thin wall thickness. I have a few questions: What is your take on horn/lens mods...damping layers, center attenuation? Can these control driver deviancies? What is your go-to reference recording for subjective analysis? The Axi 2050 has an obscene SPL and I have concluded that it must be tamed with radical dispersion in addition to signal attenuation. Is that your conclusion as well? Thank you for your analysis, Stephen.

@rongoodman8874

Жыл бұрын

Joseph...so sorry...not Stephen...from my memory bank...!!

@JosephCrowesDIYSpeakerBuilding

Жыл бұрын

I’m working on other horn materials but I’m going in the opposite direction. I’ve injection molded my first horn in concrete. I don’t know for sure yet if there will be a difference compared to solid hardwood.

When you compared with the Be tweeter, it looks like the test on the tweeter cuts off much higher. Wouldn't the wider bandwidth be contributing more distortion? Wouldn't a more fair test be to have it with the same bandwidth?

@JosephCrowesDIYSpeakerBuilding

Жыл бұрын

Yes, but to also be fair, the Axi2050 has ten times the diaphragm radiating area and so diaphragm movement should be equally less. It was just a comparison against other completely different driver types…AMT and a dome tweeter. Obviously a dome isn’t going to reach down to 500Hz. A wide bandwidth driver should compete with other multi-way alternatives.

Hi.. Does the quality of the Cap in the contour filter (3.3uF || 16R) in the comp driver crossover affect the Sound Quality greatly? I mean as much as the 3.3uF main 500Hz filter cap in the CD crossover?

@JosephCrowesDIYSpeakerBuilding

Жыл бұрын

Not that I’ve observed. I plan on upgrading my mic preamp so that I get an improved noise floor. The Focusrite Scarlett Solo is only -90dB for distortion. There are options now just in the last year to get 115dB for a quality ADC. This may reveal what we hear with different caps.

@rickg8015

Жыл бұрын

Yes, a video on a an upgraded mic preamp would be cool, to see if there are objective differences that can be seen in the quality of various crossover components.. That would be interesting..

Seems that Axi2050 has similar performance from your previous test. Did you test on the HF1440/HF1460 yet?

@JosephCrowesDIYSpeakerBuilding

Жыл бұрын

I haven’t acquired the Faital HF1460 yet. Parts Express has no plans to sell that model. I just received the Eminence N314x though.

@user-dh7lt4we2t

Жыл бұрын

@@JosephCrowesDIYSpeakerBuilding That's a shame. Hope to see great result on N314x. Another very clean CSD driver.

One question I missed Joseph. Streaming services make these incredible claims of quality but my experience is just the opposite. The same recording on a CD played with a mid-level CD player is far superior to any streamed content including Tidal. Is that your experience as well?

@JosephCrowesDIYSpeakerBuilding

Жыл бұрын

Yes, I’ve gone back to stored media and ripping CD’s for that exact reason. The WiiM Pro does a nice job as a LAN streamer for now, although not quite as good as stored media on my Chord Poly using micro SD in airplane mode. The Chord Poly quit working and so I’ll eventually need a replacement.

Maybe I am missing something here... I thought this driver is designed to be used with DSP for the best results. Some people have implemented the driver like that using EQ for the HF in fact like it more than let's say BMS 4592ND. I have 4592ND and 4591, both run passive and I am interested to hear more opinions how axi2050 (when run active) would perform against those BMS drivers. The other thing is why not use this driver with it's full potential, crossing it as low as 300 hz? As full range as possible.

@JosephCrowesDIYSpeakerBuilding

3 күн бұрын

DSP accomplishes the same thing I’ve done in my video which is the passive contour circuit. It’s equalizing the driver to a flat response.

I'm looking for a coax or something similar to run JBL 2360A horns without the need of an external tweeter. Was looking at BMS 4592ND or B&C DCX462 Is there any chance anyone has tried the Celestion and measured the results to verify if this is even worth chasing after for this horn? If i can avoid DSP processing I'd really appreciate it

@JosephCrowesDIYSpeakerBuilding

4 ай бұрын

Either the BMS or the DCX464 are excellent products. I’ve tested them all extensively. The crossover is very important and any of them will required careful tuning to get the best out of them. You can’t avoid having to do that.

I didn't get this.. 300W at 108dB? That's about 38kWt at 87dB to compare?..

@JosephCrowesDIYSpeakerBuilding

3 ай бұрын

108dB at 2.83v/1w.

@sc0or

3 ай бұрын

@@JosephCrowesDIYSpeakerBuilding Insane ) I'm just opening a world of compression drivers for my self.