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Old 23rd February 2015, 08:38 PM   #1
Cayd is online now Cayd  United States
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Default Transmission line design

I don't know what I should do this will be my first transmission line and I think I am going to use a Dayton 2khz crossover with a Dayton RS225-8 8" woofer and a Dayton DC25T-8 1" titanium tweeter for each side of the 2 channel pair or the two transmission
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Old 23rd February 2015, 11:25 PM   #2
sreten is offline sreten  United Kingdom
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Hi,

Terrible choice of a x/o for those drivers, and not
a good combination of drivers, unless you want
a really complicated x/o, have a look at :
Dayton Reference RS225

How do you intend to design the TL enclosures ?

rgds, sreten.

8" 2 ways are pretty thin on the ground nowadays, and
a metal bassmid makes things about ten time harder.
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Last edited by sreten; 23rd February 2015 at 11:39 PM.
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Old 23rd February 2015, 11:35 PM   #3
Cayd is online now Cayd  United States
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Umm look at what lol after that the message ended umm I don't know really much about home audio it's a whole different beast than car audio

Ya any suggestions on tweeter, woofer, and c/o combo keep in mine I got ripped off on my receiver and the sub out rca does not work may possibly just be in need of resolver I havnt cracked it open but everything works fine and as for quite some time sorry I'm a talker but with the receiver having no rca out for sub that I would want a decent low end from. My fronts this is for a 5.1 channel setup. I need satellites and center too but I'll tackle that later
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Old 23rd February 2015, 11:47 PM   #4
pkitt is online now pkitt  United States
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My 2-way RS duets paired the RS225-8 in an ML-TL with an RS28F crossed at 1400 Hz with a Cauer-Eliptical filter. The performance is quite good and this speaker took 1st Place at PE's 2013 MWAF.
Paul
Cabinet front without grille.jpg

RS duet Xover schematic.jpg
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Old 24th February 2015, 12:01 AM   #5
sreten is offline sreten  United Kingdom
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Hi,

Like I said, for a RS225-8 two way, the x/o is complicated.

Your quite right, home audio is very different to car audio.

rgds, sreten.
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Old 24th February 2015, 12:08 AM   #6
pkitt is online now pkitt  United States
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So, it's complicated but all the work is done already in the RS duets if the OP finds them suitable. The main point is they perform well.
Paul

Quote:
Originally Posted by sreten View Post
Hi,

Like I said, for a RS225-8 two way, the x/o is complicated.

Your quite right, home audio is very different to car audio.

rgds, sreten.
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Old 24th February 2015, 01:30 AM   #7
Cayd is online now Cayd  United States
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What Is the component I need for the cross over and is this fairly easy to make crossovers I usually only solder wires together I don't like circuit board they are too tiny and cramped

Is that box transmission line of it is obviously is probably a double fold of axis port but what is the quarter wave set at

Would the port being off axis make a difference & on sound or are a majority of the frequencies under 80hz so they are are like bass note and it isn't directional sound waves

Also I joined this fourm today haha so how do I like photos from my iPad so you can see them I was using a calculator from online and have the results in my camera roll
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Old 24th February 2015, 03:56 AM   #8
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Gimage.jpg
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Old 24th February 2015, 03:59 AM   #9
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The TL boxes are going to be designed off of the photos of the online calc that I found that is if that's what the photos are and if it works lol idk I can't see it until moderator approves it but that's how I'm doing it unless you find flaws
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Old 24th February 2015, 09:15 AM   #10
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I'd build the design Paul posted (if I recall things correctly, Mark K was involved in the filter design there). You will probably not even get close to that quality if you go out on your own. As to combining 8" woofers with 1" tweeters, once there was a time... Take notice that such designs suffer from a power dip in the 1 to 2kHz region. That may be beneficial or bad, depending on what room you are using.
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