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Joseph Crowe's DIY Speaker Building
Canada
Registrace 2. 08. 2018
Speaker Building projects by Joseph Crowe
Custom Hand-Made products available at josephcrowe.com/
Custom Hand-Made products available at josephcrowe.com/
How it’s Made! Solid Walnut Horn Speakers By Joseph Crowe Custom Audio!
This is a little insight into how we make our unique products.
Bring Your Music To Life!
🇨🇦 Made in Canada, shipping globally.
Contact joseph_crowe@josephcrowe.com
Bring Your Music To Life!
🇨🇦 Made in Canada, shipping globally.
Contact joseph_crowe@josephcrowe.com
zhlédnutí: 1 602
Video
B&C DH350 1" Compression Driver
zhlédnutí 1,1KPřed dnem
In this blog post I test the B&C DH350 on my ES-2000 Biradial No.1135. Original Blog Post: josephcrowe.com/blogs/news/b-c-dh350-1-compression-driver Speaker Blog: josephcrowe.com/blogs/news Contact Page: josephcrowe.com/pages/shop-instagram Intagram: joseph_crowe_diy Pinterest: www.pinterest.ca/crowe2065/joseph-crowe-bring-your-music-to-life/ Email: joseph_crowe@josephcrowe.com J...
Bliesma T34B-4 on Waveguide No.2439
zhlédnutí 1,8KPřed dnem
In this blog post I test a new waveguide design that I came up with for the Bliesma T34B-4. Bliesma T34B-4 Specification: www.bliesma.de/Datasheet T34B-4.pdf Original Blog post: josephcrowe.com/blogs/news/bliesma-t34b-4-on-waveguide-no-2439 Speaker Blog: josephcrowe.com/blogs/news Contact Page: josephcrowe.com/pages/shop-instagram Intagram: joseph_crowe_diy Pinterest: www.pintere...
Altec 288-8G Compression Driver with Altec 805B Multicell
zhlédnutí 1,1KPřed 28 dny
In this blog post I test Altec 288-8G Compression Driver with Altec 805B Multicell.
Part 1 DIY Digital Audio Player (DAP) Project No.2473
zhlédnutí 1,2KPřed 3 měsíci
Part 1 Lately I've been struggling with finding a suitable digital player for music playback. I thought I would share my experiences so far and provide an update on where I'm at with developing a replacement digital audio player (DAP). Part 2 I conduct distortion measurements on my DAP to see if the Ian Canada #20B Digi-Transport with NC-Pure clock provides lower distortion than simply USB out ...
Part 2 DIY Digital Audio Player (DAP) Project No.2473
zhlédnutí 673Před 3 měsíci
This is part 2 of my previous video featured here: czcams.com/video/Pf5BQmduFJw/video.html In Part 2 I conduct a distortion measurement comparison between the following: Test A Raspberry Pi 4 with Ian Canada 20B. TransportPi Digi Top Hat with SC-Pure Clock Test B Raspberry Pi 4 USB Output to SMSL D300 DAC Rationale I wanted to see if I could correlate my listening impressions with actual test d...
18Sound ND1480BE Beryllium 1.40" Compression Driver Test & Review
zhlédnutí 3,1KPřed 6 měsíci
In this video I test the 18Sound ND1480BE Beryllium compression driver. This driver retails for €1,350.00 each ($1,485 USD). I provide full test data along with subjective listening impressions, and compare against a similar compression driver. Original Blog Post: josephcrowe.com/blogs/news/18sound-nd1480be-beryllium-1-40-compression-driver-test-review Speaker Blog: josephcrowe.com/blogs/news C...
15" Back Loaded Horn No.2095
zhlédnutí 8KPřed 6 měsíci
In this blog post I feature back loaded horn design No.2095 and compare two different woofers...the Beyma 15LX60V2 against the Supravox 380EXC field coil woofer. Original Blog Post: josephcrowe.com/blogs/news/15-back-loaded-horn-no-2095 Bass Cabinet No.2095 is currently only available as a custom make-to-order build and can be integrated into a turn-key project including the midrange and high f...
Company Update
zhlédnutí 6KPřed 7 měsíci
In this video I wanted to provide an update on some exciting projects that are in the pipeline. Original Blog Post: josephcrowe.com/blogs/news/january-update Contact: josephcrowe.com/collections/contact 1815 Project (contact for quote): josephcrowe.com/blogs/news/diy-speaker-plan-no-1815-crossover-development Instagram: joseph_crowe_diy Facebook Group: josephcrowediy...
Smooth Transition Throat Adapter No.2322 for Yuichi A290
zhlédnutí 1,7KPřed 7 měsíci
In this video post I test smooth transition throat adapters for the Yuichi A290 horn. I've offered 3D CAD files for the Yuichi A290 for about four years now. The horn files have been popular and so I felt the need to provide a throat adapter design that has been optimized for both 1.40" and 2.00" throat diameters. Both size adapters transition to the standard 50mm x 50mm square entrance on the ...
Wide Baffle Back Loaded Horn No.2314
zhlédnutí 2,6KPřed 7 měsíci
In this video I test a new cabinet design for the Fostex FE108NS 4" full range driver. Original Blog Post: josephcrowe.com/blogs/news/wide-baffle-back-loaded-horn-no-2314 Join the discussion on Facebook: groups/519461486696958/user/100064060208598/ Contact Page: josephcrowe.com/pages/shop-instagram Store josephcrowe.com/ Legacy Blog Page: croweaudio.blogspot.com/ Facebook: facebook...
Speaker System No.1695 - 15" Open Baffle 2.5-way
zhlédnutí 8KPřed 8 měsíci
In this video I want to feature a project that I built recently for Don Sachs of Don Sachs Audio. Don approached me a while ago looking for his "End Game" speaker and decided that something custom would be required since there was very limited selection in the market for a horn loaded open baffle speaker. Original Blog Post: josephcrowe.com/blogs/news/speaker-system-no-1695-15-open-baffle-2-5-w...
Fostex FF165WK 6.5" Full Range Driver Review
zhlédnutí 3,4KPřed 9 měsíci
Fostex FF165WK 6.5" Full Range Driver Review
Bass Cabinet No.1798 with Acoustic Elegance Dipole 15
zhlédnutí 3,9KPřed 10 měsíci
Bass Cabinet No.1798 with Acoustic Elegance Dipole 15
Passive Crossover No.2252 for Fostex T900A
zhlédnutí 1,9KPřed 10 měsíci
Passive Crossover No.2252 for Fostex T900A
Amp Camp Amp (ACA) Mini Amplifier by Nelson Pass --- Test & Review
zhlédnutí 3,9KPřed 10 měsíci
Amp Camp Amp (ACA) Mini Amplifier by Nelson Pass Test & Review
Meixing Mingda MC368-B902 KT90 Single Ended Triode Integrated Amplifier Review
zhlédnutí 1,5KPřed 10 měsíci
Meixing Mingda MC368-B902 KT90 Single Ended Triode Integrated Amplifier Review
Horn No.1931 -- ES Front Horn for GRS PT6825 Planar Tweeter --- Test & Review
zhlédnutí 2,3KPřed 11 měsíci
Horn No.1931 ES Front Horn for GRS PT6825 Planar Tweeter Test & Review
Rogers Sound Lab IA255.1 ULTRA-COMPACT INTEGRATED AMPLIFIER
zhlédnutí 2,4KPřed 11 měsíci
Rogers Sound Lab IA255.1 ULTRA-COMPACT INTEGRATED AMPLIFIER
Shallow Horn No.1928 with Fostex FF85WK
zhlédnutí 2,9KPřed rokem
Shallow Horn No.1928 with Fostex FF85WK
Design Study --- Wide Body Bass Cabinet No.1799 using Dual 10" Purifi Woofers
zhlédnutí 2,7KPřed rokem
Design Study Wide Body Bass Cabinet No.1799 using Dual 10" Purifi Woofers
Purifi PTT8.0X04-NAB-02 8" Aluminum Cone Woofer
zhlédnutí 2,7KPřed rokem
Purifi PTT8.0X04-NAB-02 8" Aluminum Cone Woofer
Eminence N314X on Horn No.1876 (ES-600 Biradial)
zhlédnutí 3,3KPřed rokem
Eminence N314X on Horn No.1876 (ES-600 Biradial)
DE250 is the benchmark for 1" compression drivers. Lower priced alternatives are the Selenium D220ti and PRV D280ti, both of which I slightly prefer.
You could just cut all the waste away in five minutes with a bandsaw instead of (very) slowly turning all of that extra wood into sawdust on the CNC; probably save you a few days at least....
The other side of the horn is where most of the roughing takes place and that’s inside the horn flare. I’ve tried trimming excess off but the hardwood is 6” thick and weighs 50lbs. We are moving into our new shop and so I’ll see what size of bandsaw can do the job.
@@JosephCrowesDIYSpeakerBuilding 18" or larger with a steel frame so that you can tension a carbide tipped blade properly. you don't actually have to cut the curve itself, just make a series of relief cuts and the pieces will all come out, and the carbide will handle 6" with no problem. Regular steel, not so much...
very deep and well done review of this driver. I looked in your blog and found a zoom-in plot of the impedance, a small peak at about 9kHz and a (to me) corresponding one at presumemably exactly half the frequency at about 4.5 kHz - may be a resonance caused by a reflection from the horn mouth back into the compession chamber stopped at the diaphragm (kind of standing wave?). Can be seen in the burst decay as well. The difference in the samples preproduction vs no. 2 might be alike, a resonace between the diaphagm and the pole for example ... ideas .. here well damped vs not damped as good ..
I suspect having something shipped to Australia would be ridiculously expensive.
No, it’s not bad actually. I get 90% discount with my carrier. You can contact me for a shipping quote. Joseph_crowe@josephcrowe.com
@@JosephCrowesDIYSpeakerBuilding Wow, really? Now I'll have to think about model/price etc. Is the best way to have a cabinet cut and assembled here which would save shipping or do the prices you get make buying everything from you viable?
@@JosephCrowesDIYSpeakerBuilding damn! Now I'm going to have to seriously work out what I want.
please test the 5530ND
Did you see it was tested here? audioxpress.com/article/test-bench-the-bms-1-5530nd-high-efficiency-compression-driver
Horn is much more dynamic, but also has much less output to the sides, so narrower listening position. Open baffle horn could provide the best of both worlds.
such great products. They certainly deserve to be presented in audio/hifi trade shows!
I plan on doing a few shows in 2025.
Very nice! I am thinking of not continuing with Rhinocam. It's getting very pricey. What are you using for post?
We use Solidworks for CAD and BobCAM. SW is $4,000 USD and BobCAM is around $1,000 USD as standalone installs. We push BobCAM to its capability limits using Advanced Roughing and Finishing. SolidworksCAM Premium requires expensive annual maintenance which I’ve avoided.
@@JosephCrowesDIYSpeakerBuilding what is it doing differently in Advanced Roughing and Finishing?
I didn't realize they took that long to make, they look beautiful.
It could be their phase plug ringing. And slightly different material makes the dip smaller.
I am so happy you posted this video, Troy! I have been considering using the DH350 for the 2kHz ES Circular Horns.
Thanks!
Nice review
Thanks!
Thanks Joseph.. I hope you could do a review on the B&C DE550TN..
What drew you to this driver? It would have be pretty good. No copper shorting ring.
Very nice assessment. I appreciate the thought process of the "grossly mis-aligned" driver sanity check. Solid work, cool stuff.
Thanks for sharing! I remember from other c. drivers that un-/remounting the rear cover sometimes led to a distorted sound (detected that with REW THD measurement). Now from your observations I wonder if it should be standard practice to always micro-adjust (optimize?) comp. drivers by running a THD measurment while assembling a driver and tightening screws...
Decades ago, I was taught that whenever you disassemble a compression driver, you need to run a sine wave near the bottom of its range through it while adjusting the alignment and the tightness of the bolts holding it together, tuning for the purest-sounding tone. Typically, this involved perhaps 1mW of signal, and no horn.
@@ScottGrammer Aah, there you go. Will run that procedure as well from now on.
Makes sense, your dealing with highly sensitive volumes and pressure responses from the internal chamber/components of the driver. Torque and pattern of pressure when done up would be pretty important you'd assume. Much like a engine block if you do the bolts up in the wrong pattern let alone to the wrong torques your pressures to gaskets providing the seals between components won't be correct/balanced/even. Wonder if he used a calibrated torque wrench in re assembly or if he just raw dogged it? Few dugga dugs from an impact driver an it'll be right? Lol. Someone should do a video on it.
Lovely stuff there Joseph! Xx
Thank you!
I expected lower fs for a 34mm hard dome. So I will wait for the purify tweeter test.Great job Joseph!
Yes, I would love to see actual polar data on what Purifi comes up with. It’s certainly a tough technical challenge. Purifi needs to make a compression driver!
@@JosephCrowesDIYSpeakerBuildingis Purifi making a tweeter? What!? 😮
where can I get a pair of those Bliesma T34B?
It looks like Solen here in Canada. I’m not sure where in the USA.
Interesting. That Be driver looks good. Have you tested the Truextent Be diaphragms on your horns? I’d like to know how they compare to the Be dome tweeter
Yes, here… josephcrowe.com/blogs/news/18sound-nd1480be-beryllium-1-40-compression-driver-test-review
Nice compairson of the Beryllium and Ceramic. It does re enforce my experance that most Ceramics I have tried sound harsh. I have only used cheep ones so perhaps this one is better. I have been looking for a cheep Beryllium and their has been on ebay for a few years that is 16% Beryllium and the rest Copper. No reviews anywhere. Its under the name davidlous and they have a 25mm unit. It does look like the primary breakup is about 14K which would make it about the same as a ceramic. Perhaps the damping is a lot better. Love your work BTW.
I haven’t really noticed ceramic being worse than neodymium. I’ve tested the 65CD-T vs 65CDN-T and no difference. I’ve tested the RCF CD350 vs ND350 and no difference. These models are the same other than the magnet material. But I’ve experienced massive differences from model to model even under the same brand…from terrible to excellent, depending on model. So it’s all about a particular design implementation for that specific driver model, regardless of brand or cost.
Thank you very much for making this video
i wish you would have compared them to the ns1000's!! imo those are some of the best speakers ever made!! i have yet to hear a pair i liked more
How would you compare it to the hypex plate amps
Hypex is noticeably better.
Troy like you make speakers how about making amps and player with airplay too nice looking units
Does the textreme version better than beryllium version?
I’m not sure. Textreme is a very new material and I’ve only tested a 5” midrange and a compression driver. Both are very good.
just looks awesome due to the wideness. like a lowered car looks more awesome than a regular car. So if cost-no-object, clearly the way to go. btw, what's the maximum crossover frequency to avoid comb filtering off-axis?
It would have to be pretty high up into the frequency range to comb filter. Well past the crossover point.
I use the 5.3 in a small TL. I get really impressive output, but I don’t listen loud. The enclosure is the woden audio bloodhound baby lab.
Thanks for the feedback. Woden does nice work.
I found a pair of these multicell 805s in 1976 and immediately realized why they were so affordable. They were nasty sounding. I eventually located a pair of JBL horns and lenses, 2397 if I recall, to replace them. It was a different world of sound, even working well indoors for a high level rehearsal system. The full size JBL lens had superb pattern control.
Thanks for sharing. 🙂
BMS 5530ND please test this driver would really be happy to hear your opinion
That looks like an excellent driver on paper. If someone wants to send to me for test I would be happy to do so.
Very interesting, I wonder if trimming back the dividers in the mouth of the horn just a little bit would help merge the exciting signal so that there was less combing effect.
Perhaps. The loss of treble on-axis to the cell is likely due to edge diffraction off the cell mouth.
@@JosephCrowesDIYSpeakerBuilding Maybe you could 3D print a replica hand grind with a dremel some changes . Just for fun
How does your multicell horn design compare in the offaxis polar/directivity map? I don't like that combing effect...
Which multicell are you referring to?
@@JosephCrowesDIYSpeakerBuilding your 15 cell horn.
I always wondered how these measured, thanks 😀 The distortion figures are quite good at the typical SPL levels we normally use in home audio. I wonder how much it was at the typical SPL levels of a concert? Id imagine adiabatic effects start to dominate at some point due to how narrow the throat is compared to the end of the horn. My brother used to use some Altec horns (maybe those from the A7's or something similar) with 2x15" PA drivers back in the day. I don't remember it being a very nice listening experience, just exceptionally loud. Be interesting to actually hear them in a properly configured setup.
Set up properly they can be quite impressive in terms of scale and dynamics. This horn is what I benchmark for those attributes.
Thank you! Always wondered about the interference behavior of multicell horns, and there it is :) Not too bad for such a classic design, and a surprisingly wide disperion angle @ 10k. Now I wonder again, what could be possible in 3D print age, with much smaller, rounded clusters and a more homogenius coupling to the throat.
It would still be very difficult to improve. Every element of this design has been carefully considered for the application. My attempts resulted in slightly worse comb filtering but less horn coloration.
Very informative.thanks.
Glad it was helpful!
Love the content. Thank you
Glad you enjoy it!
Slightly OT question, Joseph.. Is there a Field-Coil compression driver that quite impressed you (despite of cost?)
The Lamar M2 Field Coil was very beautiful sounding.
This is interesting, thanks!
Glad you liked it!
I whould make the edges that go from the tweeter also exponential/nonlinear.
You have a porn tab still open
I have to be Joseph Crowe’s biggest fan. He’s AMAZING!
Thank you! 🙂
The Peavey 44XT is quite a good born driver … 🎉(((
Thanks. It’s not often you see ferrofluid.
The first one, passive was my favorite. You have an incredible gift. I absolutely love your work. I’m definitely going to reach out to you when I purchase my next system. Thanks for sharing!
Thank you!
Beautiful.
Thank you!
Thanks a million for this detailed review. What do you use for making measurements? Room, microphone, interface, software???
I offer a training video series if you are interested. josephcrowe.com/products/video-training-series-crossover-design
With a crossover frequency @800Hz bringing the woofer emission point to that height is very likely to generate a reflection from the floor (called mirror image floor source) that will cancel frequencies in the range reproduced by the woofer. This is what I learned reading the writings of some respected acoustic designers including the never too much missed eng. Renato Giussani (ESB, Aedon, GR-Research). Better to install this Yamaha for the purpose for which it was designed. (large bookshelf)