Hello, my name is Jeff Robinson This is my much improved homepage, Kaizen! My hobby is loudspeaker enclosure design and construction, I have built about 4 dozen pair ranging from tiny 1/8th cubic foot babies to 25 cubic foot ported monsters whose response extends below 14Hz. and bass horns as well as vented and sealed. I am getting inquiries about building enclosures, my big horns are expensive to ship, you are welcome to build a limited number (usually 4 maximum) of my designs posted here, only for personal use unless licensed, please. I fixed the guestbook problem.Shimatsu |
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Thank you Rad for the good web design suggestions. Here are two of my horn designs. I draw in Turbo, save with screencapture. I like canoeing and camping, see below. I will be building 2 midbass & 4 bass horns to try them out (I'm working on new bass & midbass designs to match some new/old horns I got). I've got some 8" JBL D208 & Pioneer NR806FG-1, EVM10M's, DL10X's, 8 MCM 55-1880, 55-2325, Gauss 5842's (choices!) for this project. Click on an image to link to a high resolution construction plan. I have added auxiliary flare extender accessory cabinets to my horn gallery. This is also where there are a few photos of projects. I've designed a 33"h x 46"sq cabinet for a single 18", good for 1 in a corner or 2 out on a floor, a big front chamber flattens response & lowers cutoff frequency. Warning-use of 28Hz horn as 40 Hz horn has troughs of -1dB @ 77Hz & -2dB @ 52Hz. (as 56Hz much worse) |
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A very brief bio and picture of your humble host | ||||||||||||||||||||||||||||
Sign Guestbook | View Guestbook | archived guest | ||||||||||||||||||||||||||
While I do show the midbass as having a 100 Hz flare rate, each set of 3 is actually only usable to 120 Hz. I used the lower frequency to offset exponential roll off. In my setup I plan to start with a x-over of 140 Hz @ 24dB/oct. Arrays of three are flexible to set up - vertical stack for long throw, horizontal array for short throw applications. I hope this is a design plus rather than a minus. See gallery for new midbass designs. | ||||||||||||||||||||||||||||
1999 Dawt Mill canoe trip photos 475K .pdf format, thanks to Michelle Smith | ||||||||||||||||||||||||||||
Gallery of first 5 versions of my 28 Hz bass horn, mid & tweeter horn designs that match my midbass, plus more bass and midbass horns :-) page 3 4 5 | Michael Frye's split 210's | |||||||||||||||||||||||||||
Timo Christ's Horns'r More Fun web page | ||||||||||||||||||||||||||||
EV&JBL box designs & links page, software, designs, so much more | ||||||||||||||||||||||||||||
Whitewater rafting July 8th, 2000 | equations | |||||||||||||||||||||||||||
My single driver page | ||||||||||||||||||||||||||||
Klipsch horn notes (1941 articles), also other designs | ||||||||||||||||||||||||||||
Link to photo of University Classic (S8) | James Melhuish's site with horn designs & theory - learn it here | Speakerplans.com UK PA pro, bass a'plenty |
John Inlow's web page has Jensen Imperial plans. | |||||||||||||||||||||||||
The first large cabinets I built (in 1975) were a modification of the Classic, I extended one end 2.25" to allow putting a JBL D208 in the space between the last flare and the cabinet edge. I wound inductors for 300 Hz x-overs from 18 gauge, they had a 2.5 ohm resistance, ugly but I think they prevented blowing the cheap woofers I originally loaded them with. A good friend's father helped a lot with a woodworking shop based around a Shopsmith. I have a little 8" B&D tablesaw (built into a 4'x6' table), drillpress, router, orbital and belt sanders, circular and jig saws. Lots of pipe clamps are de riguer. Now I have a Powermatic 64A 10" tablesaw with 50" ripping capacity unifence! | ||||||||||||||||||||||||||||
Along the bottom are three commercial horn designs. The University Classic, EV TL4025 & TL4050. These are scans of 25 year old copies of free versions and the EV were spliced together from two imperfectly aligned scans. I cleaned them up to a point that started to lose detail and had to stop there. These also are a click to get construction plan link (40k to 50K). | ||||||||||||||||||||||||||||
University Classic construction plans | EV TL4025 construction plans | EV TL4050 construction plans | ||||||||||||||||||||||||||
Corrected University Classic (22K .gif) | ||||||||||||||||||||||||||||
EV TL4025.gif, 13.5k | ||||||||||||||||||||||||||||