Full Range

The inductance coils I have used were actually made professionally at Mike Lenehan Audio in Australia http://www.lenehanaudio.com.au

Don't need a baking oven for 2 crossovers Dean In any case Northern Australia is at times hotter than an oven

Thanks Dean The whole design was checked and rechecked and tweaked for simplicity at every stage These crossovers came together and the design grew as an organic procedure between myself and the expert He told me that he had the odd midnight brain wave and also made a few changes at the last minute.

A good point The actual size of the boards is 18.5" X 14.5" (470mm x 370mm) And the distance between the large coils is from memory 8.66" (220mm) at the centres I haven't collected them yet but can confirm when they are in front of me This distance is baced on Troels Gravasens recommend distances If the crossovers display issues during testing we will rotate

I'm sure you all like to know the main parts used in the build Capacitors Jentzen Audio Cross Caps for the Bass section Jentzen Superior Z caps for the Mid and Tweeter section Sonicap in all other areas Duelund resistor for its sonic signature All wiring is silver plated stranded copper with teflon coating Solder is the Mundorf silver / gold mix The terminals are Audiophile High-quality 5-way binding posts The fully insulated design prevents the accidental shorting of speaker wires And I really like the free-spinning metal ferrule feature on the tightening knob, this allows for a secure connection. Will also use gold plated copper ring terminals on hookup wire and speaker wire connections

Have had a crossover project in the works since I became the owner of the La Scalas That project was to make the ( originally two piece ) gentle slope exposed crossover fit into a single board design that will be exposed to view & showcase the crossover and have easy access to the Autoformer attenuating section for db adjustments as required I am more versed in Mechanical Engineering so I have employed an associate to build the crossovers for me for a small cost and the offer of a listen on the system when it's all connected up The Crossover design is loosely based on the ALK gentle slope type AP12-500 & AP12-6000 configurations As all the drivers in my speakers are not standard - some changes needed to be made The original design of these crossovers was - as a two piece system as that fits the Klipsch Heritage range We put our thinking caps on and have come to a design agreement and tweak for a single board based on Troels Gravasens observations as we have plenty of available board space We have designed this build as a single board - all coil distances are to Troels recommendations The layout design was made maximise neatness and avoid component interaction. We did not forget that the attenuators being transformers also need to be treated as inductors for spacing issues. Soon after we simplified the connectivity of all three driver sections on the crossover alleviating many connection points, and a new schematic was drawn up (I won't post the schematic as ALK the designer has removed them from the web site due to plagiarism) This crossover still has the separate mid range and tweeter attenuation features for fine tuning First we did a basic layout of the components on the floor with the view to tweak as needed for best performance and fit A close up of the tweeter attenuator - This component will allow me to tweak db volume to suit speaker placement and room size The coils for the Bass and Mid sections are hand wound and weigh over 3 pounds US -approx 1.5 kg each We chose and used a good speaker colour match plywood board - and started the component fit You will see a set of wire cutters and the tape measure @ 500mm to judge scale The crossovers are finished - my associate has done a fantastic job and has emailed me a couple of photos of the finished crossovers For all soldered connections Mundorf Silver/Gold solder was used I chose to use a Duelund resistor to service the Bass & Mid range Top side layout Underside Will apply finishing touches in the form of - 1) A frame that will incorporate in the design grab points for easy lifting 2) When funds allow I will have a perspex cover made for dust protection ( like a TT cover ) 3) Labels for connection identification points 4) A Klipsch logo or badge to each board as a finishing touch

The Bass cabinet is the standard 24" square However when the sides and back were doubled with a second piece of plywood that increased it to 25.5" Great Plains 399 specs - http://www.greatplainsaudio.com/downloads/399series.pdf As to my video capabilities I'm terrible at it - but will give it a go ( I think I have a Vimeo account ?) All I can offer for now is my system showcase thread -https://community.klipsch.com/index.php?/topic/149033-showcase-your-system/ Cheers

43 inches in height by 33 inches deep by 50 inches in width. I would like at minimum 60 to atleast 400hz. If I can go lower than that great. I'm looking for the cabinet to best my pair of dbbs if there is one.I originally built the dual jbl 2242 bass bins to replace my dbbs, in modeling they would play well out to over 500hz, but in reality they drop like a rock after 320hz.From 35-320hz I have not heard better bass than the dual 2242's, they sound like the dbb's on steroids. Another idea is to use the mid driver down to 300hz but I'm having a hard time finding a tractrix horn that will work that low. Have you seen the newest Eliptrac 240 htz horn See forum thread for more detail - https://community.klipsch.com/index.php?/topic/147252-eliptrac-240/ And the site http://www.fastlaneaudio.com/horn-kits.html

The mid range driver I use is the Great Plains 399 with my Eliptrac 400 - and they operate at a range of 500 htz to 15 kHz and the Tweeters are the JBL 2404H “Baby Cheeks” tweeters. ( They would probably be considered as super tweeters ) Wonderful combination just wonderful

This is a photo of Brisbane City Australia looking at it from the Valley side

For the La Scalas when you want the same cabinet footprint you can have a look at this build https://community.klipsch.com/index.php?/topic/108425-la-scala-bass-reflex-mod/ Im the current owner and here is a photo

Get them new direct from Fastlane As a kit or fully assembled Both options are a very reasonable price

I have sent you a PM Mark - RE pie shape badges if still availableI don't have your email so I'm hoping that the quote will send you an email

You are correct GH He has noted that in this quote He is mistaken, since the Jamboree isn't a Klipsch speaker. Greg Roberts (Volti Audio) says it's a better sounding speaker than the Khorn or Jubilee. http://www.voltiaudio.com/jamboree.shtml I have the plans for another of his speaker designs, but I've never had the funds or time to build them. Bruce Got to admire the Volti projects and speaker range Looks awesome

The crossovers would be several thousand as I see hand made Duelund capacitors

You are correct GH He has noted that in this quote

@GotHover Would you know the internal volume of the La Scala dog house is

To tell you this truth I didn't think it would make any diference It was just an experiment after reading about the late speaker builder John Wyckoff He used bubble wrap sheets in his design the Super 12 I may not like it in a month and if that is the case, they can be easily removed - but all I can say now, is the speakers sound wonderful But there is a difference in a good way and it's subtle

Inside the port tube from the front - so if the mod did not work, the air bags would be easy to remove At first tried to roll 3 of them together but only 2 would fit So in the end I placed 2 rolled together and placed in length wise snugly and the other one followed across and delicately squeezed in so it fitted snugly The previous owner had made some foam disks to fit inside the port tubes - they were reused Here are a couple of photos to view

Hi mdross and welcome Let me introduce myself - I am the current owner of these speakers I have made some tweaks to the bass box to suit my components and the listening room Let me just answer a question you posted above regarding the access hole in the dog box - as you are building a custom cabinet you will still require the hole as it's your only way to fit and remove the bass driver And if you want a listen you need to come to Australia I proceeded to rework the insulation inside the bass cabinet section The previous owner Sootshe had it fully lined with fabric covered fibreglass insulation This was carefully removed and vacuumed cleaned to give me a blank canvas to work with Sound testing without insulation was first tried to get a ball park idea of what was required and it displayed some reverberations in bass output I used my go to motor room insulation that I have had success with on my other speaker builds The only sections that were insulated was the - sides, back and top ceiling area with the bottom and front left bare Also a couple of insulation strips at the port pipe entrance and finally added recently some 400mm X 200mm plastic air balloons 3 per tube The diference this mod has done to bass delivery and definition is nothing short of amazing I dont have any testing equipment My ears and senses tell me that it easily gets to below 30 htz ( The Crites bass driver is rated @ 26 htz ) However after the cab tweaks - the bass produced is so crisp & fast, very defined without muddiness Hope that helps

Welcome and stay a while P.S. I am a newb as well

I won't disappoint you on this question Yes I still have my Nakamichi 480 cassette player that I purchased new in the late 70s And will post a photo when I can I will also get one of the 3 turntables set up for its modelling debut

This thread is placed in personal music systems The heading and intention of this thread was to showcase your system If the mods want to move this thread then they can do so If not how about posting a photo and showcase your system

In the photo above it shows the Volti type braces but at a later stage the side walls and back were doubled in thickness and the Eliptrac 400 installed My tube amps are hand made by Earle Weston of Weston Acoustics in Australia Both carry the serial number #1 The top unit is the amp - This amp is called the Tweaker because it is purposely made to be tube rolled It can operate with 4 deferent tube types and is biased manually for each tube type All transformers are hand wound and also operates in switchable pentode & triode modes Internal wiring is silver Max A class watts is 14 W pc using the KT88 Tubes The lower unit is the pre amp - it is the only one in existence It's a Prototype 6SN7 Tube pre amp and TDA 1541 NOS DAC Earle's description in a nutshell it is a Tube preamplifier running a directly coupled 6SN7 driving an output transformer with a OEM TDA1541 DAC board on one of the 4 selectable inputs. The pre-amplifier acting as a gain stage and buffer for the DAC. It runs three RCA inputs, then the digital section with momentary toggle switch and LED's that allow you cycle through USB, Optical, SPDIF and I2S inputs. Specs on the tube section are Distortion at full volume > 0.06%. Frequency response +/- 0.25db 20hz to 50khz. Signal to noise ratio >90db. Hum at zero volume 0.15 millivolt. Output impedance 80 ohms

Although I have been building speakers for over 20 years these are not my work They were purchased from another member - However I have contributed to his work by fine tuning & tweaking Here is some of the build details if your interested https://community.klipsch.com/index.php?/topic/108425-la-scala-bass-reflex-mod/