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Old 2nd March 2020, 07:12 AM   #51
nautibuoy is offline nautibuoy  United Kingdom
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I have seen it suggested that the 10in Lii Audio drivers (datasheet for the ones I have attached) would be well suited to an Onken project - a not so mini variant of the Planet 10 miniOnken designs;

I've played with this calculator;

HiFi Loudspeaker Design

and it all looks good with an overall calculated SPL of 93.6 (dB 1W/1mtr) (which my only concern because of the flea-power amps I currently use). The bottom end -3dB point is calculated to be at around 30Hz.

Thoughts?
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Old 2nd March 2020, 06:18 PM   #52
planet10 is offline planet10  Canada
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It looks like that is so.

400 litres, F6 & F10 both in the low 20s (F3 is meaningless to humans)

But it can be squeezed into a smaller box:
300 liters F6/F10 still in th elow 20s
250 liters, F6 drifting into the higher 20s
200 liters, F6 now in the upper 20s, a bit more midbass punch
150 liters F6 into the low 30s, F10 high 20s.

I’d look at the 200 litre box. Benefits in terms of material cost, getting the box not to move, and the midbass punch all appeal.

How is the SPL different than specified. Where are you loosing so much? This thing should wail with a watt or so.

Note that that calculater is for an Onken, not a miniOnken.

dave
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Old 2nd March 2020, 06:51 PM   #53
nautibuoy is offline nautibuoy  United Kingdom
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Thanks Dave. A Watt or so is what I've got!

I'm mulling over what to do with these drive units at the moment, maybe some miniOnkens, maybe a bass reflex, maybe an OB...

Do you have any suitable plans secreted about your person? Large floorstanders are fine, though I've not really mapped the volumes you mention to physical box sizes.

Cheers

Ray
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Old 2nd March 2020, 07:10 PM   #54
planet10 is offline planet10  Canada
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No miniOnkens have hit 200 litres yet, but that is just some grunt work. IIRC 135 litres is max (for a 15” bass driver).

dave
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Old 2nd March 2020, 08:23 PM   #55
nautibuoy is offline nautibuoy  United Kingdom
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Quote:
Originally Posted by planet10 View Post
No miniOnkens have hit 200 litres yet, but that is just some grunt work. IIRC 135 litres is max (for a 15 bass driver).

dave
OK, that would seem to narrow down my options then.
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Old 2nd March 2020, 08:53 PM   #56
planet10 is offline planet10  Canada
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A custom design is only a doation away.

email me if you want to talk further.

dave
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Old 3rd March 2020, 02:33 AM   #57
nautibuoy is offline nautibuoy  United Kingdom
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Quote:
Originally Posted by planet10 View Post
A custom design is only a doation away.

email me if you want to talk further.

dave
Thanks Dave, it's good to know that the option is available and I may well come back and take you up on it. This is not a pressing issue as I need to complete some other projects before I entertain a speaker builld so I have the luxury of being able to procrastinate for a while.

Having done some quick calculations I'm begining to appreciate the physical size that those cabinet volumes translate into.
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Old 3rd March 2020, 03:28 AM   #58
planet10 is offline planet10  Canada
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BIG. 7-something ft3. Net.

dave
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Old 24th March 2020, 11:52 PM   #59
dmar836 is offline dmar836  United States
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Dave,
Didn't I see a post attachment somewhere of a MiniOnken for the Dayton PS220-8? Was hoping someone had built it with listening impressions.

Couldn't find it again but was hoping it would be floor standing and trapezoidal. The Singularity and Pensil are a bit simple. What can I say? I always take the hard way.
Dave
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Old 25th March 2020, 01:53 AM   #60
dmar836 is offline dmar836  United States
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Found it on the ”Dayton 8" FR PS220 Discussion” thread and it is trapezoidal. Has anyone built and tested this?

Dayton 8" FR PS220 Discussion

Dave
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