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Can a DIY'er build better speakers than Professionals? Generally, I must say NO, because we have fewer resources than the big companies... but it is possible. My "generally, NO" conclusion comes from my own 30+ years of experience with results ranging from awful to pretty good, but never fully...

Yeah, I had some WAF issues to deal with too. Problem solved now, though... I don't miss her at all !

Achieving a seamless blend between a woofer and ESL is a challenge for any hybrid design. I opted to mount the woofer on an open baffle to obtain a matching dipole radiation pattern. Typically, you would want a high-Q woofer with floppier suspension on an OB, to allow the woofer to play low...

Yes; it's a similar concept implemented differently (line source vs point source). Generally, more/narrower vertical segments (discrete wire groups) gives wider and smoother-trending dispersion in a cylindrical pattern, but there is no additional advantage in making the wire groups narrower...

Hi all, I've retired from speaker building but I want to share this last ESL project. I don't know how I would top this one anyway-- It's the finest speaker I've ever built. Others are building these now, using my drawings and encouragement. The labor is horrendous (no sane person would...

It seems to me the predominant component of the impedance peak would be back EMF generated by movement of the voice coil. If that is so, it would be consistent with a resonance peak. If the resonance did not generate the impedance peak, the we have to explain what did.

Taking a short break from packing for my trip. I continue to ponder the relationship between the woofer's measured impedance peak and it's resonance. Eminence states on their website that they determine the woofer's resonance by the impedance peak, and my understanding is that this is the...

Hello again TLS Guy, I don't consider myself having the smarts or testing gear to resolve this question. I have been pondering your assertion that the impedance peak doesn't necessarily correlate to the woofer's resonance. It does in free air, according to the Eminence speaker website, but I...

I wish I could claim it but it's not "my" method :) That honor belongs to the inventor. In fact, I must confess that I've always struggled with math, and my knowledge of electronics is only rudimentary at best (I can recap an amp but I couldn't fix one if it doesn't play). The Ripol's are...

I'm not saying you're wrong-- just that a lot of knowledgeable people disagree with you. And aside from your point about poor efficiency (valid but no worse than other dipoles I've heard), I'm not aware of any published research that supports your conclusion. I'm no expert myself, so I can't...

I don't blame you for being skeptical. It's a bit hard to get one's head around at first, but if you think about if for a while it starts to makes sense. Unfortunately I can't provide a model. I heard some years ago that Martin J. King (a well known math wizard / transmission-line speaker...

Enjoy! Charlie in Savannah, GA Below: Cab glued and clamped. Below: Cab edges were notched on the table saw, to accept the red oak edge members. Below: Mitered edge members installed and held in place with painter's tape while the glue sets. Below: Cab with edge members installed and...

Go for broke: http://jazzman-esl-page.blogspot.com/ Video:

Absolutely. EVERYTHING improves: Bass tightens up considerably, phasing errors disappear, improved coherency and clarity, higher efficiency... you would never go back to passives.

My friend and ESL guru Steve Bolser posted this on the DIY Audio Forum: " Indeed, symmetrically segmented flat ESLs can produce dispersion patterns that best most any other ESL (or dynamic loudspeaker for that matter) in broad uniform coverage, and directivity that trends smoothly with...

TLS Guy, Your studio is (WOW!) fantastic—obviously the product of a serious psychosis :-) I love your transmission line speakers. I can only imagine they must sound wonderful. In fact I recently heard a pair of highly modified Tyler Acoustics speakers, which use the exact same drivers I see...

Update: Big change to my diy ESLs: The original beamy perforated metal stators are GONE-- replaced by insulated copper wire stators that employ electrical segmentation to bend the wave front from planar to cylindrical. The details and build photos are shown on my website HERE My speaker...

Hi all, It's about time I updated my system pics to show the latest changes. I picked up a never-used (NOS) Logitech Transporter on Ebay and I love this thing! However, the biggest change is the new panels in my DIY ESL speakers. I've replaced the original and highly-directional perforated...

Most of us have had bad experiences buying audio gear off E-Pray...but I see a whole bunch of other nice gear in your photo. Tell us about the stuff that does work!

I think many people like to play their subs well into the mid-bass but I prefer limiting subs to the lowest bass notes. My system is a three-way setup with digital crossover and three power amps. The hybrid ESL's are vertically bi-amped. One amp drives both Ripoles, and each main has its own...