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Multi-Way Conventional loudspeakers with crossovers

Slim tower / floor standing speakers - What to search for
Slim tower / floor standing speakers - What to search for
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Old 1st September 2019, 11:24 AM   #31
Jinxid is offline Jinxid  Denmark
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Originally Posted by planet10 View Post
The latest FR drivers (the Mark Audio are affordable too), often have very good bottom without sacrificing top.
Cool, I had a look at it, even looks good

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Originally Posted by planet10 View Post
Certainly as extended as most 2-ways, without any crossover anomalies. Including what an XO does to the impedances, often making them a better match to higher output impedance SE amplifiers.
Not entirely sure what that means, sorry - I understand a cross-over is a compromise, but I don't know enough about these things. I'm not sure if I have an high or low output impedance amplifier. The pioneer A757 mk2 I use in my "office" has 2 speaker output sets, and they have a warning about where to hook up what ohm speakers. A takes 4-8ohm, B is 16-32 ohm. I've never seen higher than 8...

My DALI's are 8 ohm speakers, is that part of the reason I feel they sound better when played louder? - almost like there is more detail when it gets a bit of oompf.

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You really need to listen to some good examples to judge whether the compromises make sense for you. People are often blown away with what a good FR can do.
I checked Quali-fi, it's unfortunately in the "other end" of Denmark. Granted, Denmark is tiny, but we've got some steep bridge fees. trip there would be almost as much as a driver (easily 80 euro both ways + gas)

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The Pensils are proven ML-TLs that are designed to be tuned to your room/room placement/taste as to the bass.
I really would like to try this style of stuff, but possibly more of a curiosity project until I have a better clue

Crazy thought! Could one have a table standing mini/midi-esque tower? I do a lot of music listening in my office/playroom. The problem is I have 3 screens taking up a TON of space side to side.

Would something like this be remotely viable? - size not to scale but to get the general idea... black lines at the bottom is just to show the screens are angled. - bear with my quick mock-up

I know this is sort of off-topic of the original idea, but it just hit me that maybe it would be better than my current setup, both ergonomically (I want to move my screens further back) and speaker position (no position, basically). - I know this is still a big compromise compared to anything "good" setup-wise (worried about screens being in the way).. but could it work? Feel free to hack it down if it's a terrible idea.

Sorry starting to get all crazy - I guess my idea of what I would like to try is changing.

Mattes: You're very kind! And wow - I know about the plastic madness in the ocean, it's heartbreaking but I never in a million years would have guessed that you were out there on a research vessel.

As you may have read my wall of text with descision making randomness, it could be fun to try full range speakers if they make sense where I sit.

- The small kit you linked looks interesting, I found some dimensions, they are indeed quite small, might be good, keep it simple-ish

Thank you guys again, I really appretiate the answers and effort. I apologize for being so indecisive.
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Last edited by Jinxid; 1st September 2019 at 11:26 AM. Reason: Forgot to upload file!
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Old 1st September 2019, 11:43 AM   #32
sangram is offline sangram  India
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You could build these for $200 if you like. Cheap drivers and a very simple, low cost, low parts count crossover. Can't get much slimmer than this. The woofer works well in small sealed to medium-size ported enclosures like this one. Listening axis is slightly above tweeter and box is kept short for this purpose.

Woofer: Peerless 830657

Tweeter: Peerless/Vifa XT25SC90-04

Box is 164mm wide from edge to edge.

In a ported box there is a power limitation due to limited excursion, if you have a sub and can get some stands a smallish sealed box will work great as well. It has just 1.5dB of baffle step compensation, and is kept literally 2 inches from the wall. Works fine if you listen close up, at a greater distance it needs a little more space to the back (and a slightly different crossover).
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Old 1st September 2019, 03:37 PM   #33
Jinxid is offline Jinxid  Denmark
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sangram: looks interesting definately a cheap way to get into building.
Where would I find some sort of build plan / cross over diagram?
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Old 1st September 2019, 11:56 PM   #34
sangram is offline sangram  India
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My apologies - the width is 200mm, not 164.

You can find a crossover and the build plan attached. Crossover isn't fantastic because the drivers are a little difficult to work with, but the sound is well-balanced.

You really need to watch the power in this box - the driver will hit its excursion limit with as little as 2 watts. For listening real close (like a couple feet away) this is not an issue.

If you need to sit a little further away you will want a bookshelf enclosure (sealed) and cross over to a sub. The driver used has a good amount of overload capability and I could not hear it in distress for even loud levels from a 4-5 feet away. But YMMV, all rooms and all people are different. Also, the crossover here isn't suitable for a small box or for listening at a distance.

The one mistake that I worked out after the build is that the port hole is 75mm diameter, but the tuning calls for a 75mm port. Tubes for a 75mm port require a 78-85mm diameter cutout. 8.5 inch depth may also be tough to fit into the depth of the box so you would need an elbow or make the port downfiring. You can downsize the port to 50mm and then you only need a 84mm deep port, which is what I ended up doing.

Similarly, the cutout for the terminal cup at the back would depend on what you are using.
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File Type: pdf New speakers 2019 - 830657+SC90.pdf (39.0 KB, 4 views)

Last edited by sangram; 1st September 2019 at 11:59 PM.
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Old 2nd September 2019, 01:30 PM   #35
Jinxid is offline Jinxid  Denmark
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Quote:
Originally Posted by sangram View Post
My apologies - the width is 200mm, not 164.

You can find a crossover and the build plan attached. Crossover isn't fantastic because the drivers are a little difficult to work with, but the sound is well-balanced.

You really need to watch the power in this box - the driver will hit its excursion limit with as little as 2 watts. For listening real close (like a couple feet away) this is not an issue.

If you need to sit a little further away you will want a bookshelf enclosure (sealed) and cross over to a sub. The driver used has a good amount of overload capability and I could not hear it in distress for even loud levels from a 4-5 feet away. But YMMV, all rooms and all people are different. Also, the crossover here isn't suitable for a small box or for listening at a distance.

The one mistake that I worked out after the build is that the port hole is 75mm diameter, but the tuning calls for a 75mm port. Tubes for a 75mm port require a 78-85mm diameter cutout. 8.5 inch depth may also be tough to fit into the depth of the box so you would need an elbow or make the port downfiring. You can downsize the port to 50mm and then you only need a 84mm deep port, which is what I ended up doing.

Similarly, the cutout for the terminal cup at the back would depend on what you are using.
Thank you for the description - your thing sounds like I would need to know a lot more about tuning a speaker, but I really appretiate you taking the time!

I think the kit Mattes linked to is more my speed, just because a lot of the guesswork is already done, and it's slimmer. - Which helps at the tv position.
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Old 2nd September 2019, 02:14 PM   #36
sesebe is offline sesebe  Romania
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Maybe something like these:
H04.1 - TipTricks Detail
There are some Vifa side woofer designs but I can't find now.
I mean a side woofer design. I made one and besides the fact that the filter is more expensive I am satisfied with the result.
Here are a photo with my speaker: speakers comparison

Last edited by sesebe; 2nd September 2019 at 02:16 PM.
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Old 2nd September 2019, 04:55 PM   #37
wolf_teeth is offline wolf_teeth  United States
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You asked earlier if changing the baffle would be okay. If you change the baffle arrangements or dimensions is where xover adjustments will likely be required. This goes for all designs.
The xover is matched to the exact drivers, their placement, and the baffle's shape and size.

Later,
Wolf
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Old 2nd September 2019, 06:42 PM   #38
Jinxid is offline Jinxid  Denmark
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Thank you wolf amazing that it's so sensitive.
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Old 2nd September 2019, 07:36 PM   #39
planet10 is offline planet10  Canada
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Slim tower / floor standing speakers - What to search for
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TipTricks
I have found side firing woofers can work really well. But i will noe not use just 1. 2 woofers the next size down loaded push-push offer many advantages over a single woofer.

dave
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Old 3rd September 2019, 02:19 AM   #40
LineSource is offline LineSource  United States
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Jinxid,

Has your education & research advanced to where you can decide between a <$200/speaker 21cm baffle 2-way ported midbass design, and a <$300/speaker 21cm baffle 3-way design with a sealed midrange and ported side woofer?

-OR- do you favor another design path?
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