Recent content by Jazzman53

I agree with AdVis The rear chambers are already open on one end so there should be relatively little pressure buildup or loss from the clearance around the magnet. The magnet cutouts in my RiPol provide about 1/16" clearance around the magnet. I also wrapped a 1/4" wide strip of 1/8" thick...

A few years earlier:

I drive bi-amplified hybrid ESL speakers using a DSP crossover which has both manual and auto-EQ capability. The auto-EQ does a good job of flattening the response but I still hear a harshness at [just under] 3kHz. I read somewhere that human hearing is biologically programmed to be...

Great idea! AudioXpress is always looking for quality project articles, and I'm deferring dibs to you for a RiPol article. BTW; per AudioXpress article guidelines, there would be no conflict if you post your project here first. I know this because two of my earlier ESL builds were posted on...

"Fast" (or "faster") was not the best choice of words here but I do think transient response (in addition to a well damped suspension) is important for blending a woofer in a hybrid ESL. My inference that that the mid-bass woofer's back-EMF affects it's transient response follows from the...

I have to agree that most hybrid ESLs never quite sound like a single, seamless speaker. The only commercial hybrid ESLs I know of are from Sanders, Janzen and Martin Logan. Of those; I've only personally heard the older Martin Logan models, which in my opinion had good bass extension and...

Now that you mention it; I'm feeling pretty much like an idiot at the moment for not seeing the obvious from the beginning. When I'm playing music on my system, I set the DSP/Crossover input gain to full and control the volume upstream, using my Logitech Transporter streamer/digital preamp's...

My DSP has an ethernet port for connecting its Ipad control app via the router.

Thanks Brad! The Wiim Pro could be the ticket... but only if its digital in can be volume-controlled and routed to its digital out. Most streamers have a digital in to allow using it as a stand-alone DAC, where the digital in is converted to analog out only (i.e. no pathway from digital in to...

Can someone recommend a digital in/out volume controller for my TV's optical/digital out? I want to feed my TV's optical digital output directly into a digital input on my audio system's DSP/Crossover. The TV's digital out isn't volume controlled so I will need an interface to control the...

After trying sealed and ported box subs with disappointing results, I finally found the perfect matching subs for my ESLs. Not everyone is familiar with RiPol subs so I will first give my take on what they are and how they work: The configuration was patented by German speaker builder Axel...

Yes, the interlocking oak lattice stator support details must be cut with fair accuracy, and I don't have a CNC machine... I cut them on a table saw. The tolerances are not perfect but they don't have to be because the wires and lattice details are assembled against a flat reference surface in...

Yes, my name is Charlie and I am the same Jazzman from the blog Jazzman's DIY Electrostatic Loudspeaker Page, and my user name on DiyAudio is CharlieM. Love your videos Joppe!