CHN-110 cabs

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smehrlich

Member
Joined 2023
#1
help me!
in the past ive made some butt ugly bluetooth and passive speakers and want to take the plunge with making something a bit more classy.
i currently have a pair of ma chn110 drivers that have been sat under my work desk for 6 months whilst i decide on a cabinet for them.

final cabs cant be too big, the wife is short!!

my current short list

pensil a11
pensil 103


oryxchr120
and the kewel compact

both pensils are about the limit depth wise and the oryx and kewel i could do if i put the port on the front rather than the back.

any downsides to squeezing the chn110 into any of the above ?

any advice appreciated

cheers

steve
 
#3
Dave thanks for the reply .
Reading through some other posts on plusses and minuses for cab sizes and shapes is melting my mind.

To what detriment would reducing the depth of the pensil say by 75-100 mm?
Also would reorienting port in the kewel to the front be bad news?
I can't help but feel I may have purchased a driver that is maybe a little large for the cabinets I can accommodate!!! Impulse buy .


Cheers
 
#4
smehrlich said:
final cabs cant be too big, the wife is short!!
Click to expand...
Curious what you're implying re wife is short.......

Regardless, What's small enough? I mean I did a MLTL awhile back for another and it's only ~2 ft tall/1.06 ft^3, which is a picket fence post size to me.

edit: a pioneer's max flat BR = Vas/1.44 = ~17.174 L net, Fb = Fs and a vented sealed 0.707 Qtc = ~13.48 L net, Fb = Fs, but each requires a longer vent with shrinking box unless somewhat minimized by ~aperiodically/critically damping, so go any lower and you'll need to frequency shape it electronically.
 
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#5
She is short in both stature and patience for husband related projects!! The pensil 110 would be cracking in both height and width but at 450 deep in a fairly small room they may encroach too much on the ambience!!! What will I lose in sound reducing that depth by 100mm maybe less ?
 
#6
The Pensil is designed for heavy stuffing, so is quite large relative to Vas (~77-78 L net at a glance), so can be reduced depth wise considerably to make a MLTL (mine's ~30 L net).

PS: 'Been there, done that' with such a wife; had to hang here upside down just to get her 'stretched' to 4' 11" and what a temper! But then to be expected from a green eyed, 'flaming' redhead!
 
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#20
Not to speak for GM, so I will put it in a spoiler box. As a test of my understanding, I think that file describes a box with:

Horizontal cross section area = 503.95 cm2
Length Top to Driver = 19.56 cm
Length Driver to Port = 32.60 cm
Length Port to Bottom = 3.89 cm ... ~3" round port?
Area of Port = 50 cm2 ... if round ~3-1/4" or 80mm ?
Length of Port = 20 cm
Acoustic Path Length = 32.6
System Volume - 29.246 L
Driver parameters were:
Sd = 109.00
Bl = 5.85
Cms = 1.46E-03
Rms = 0.86
Mmd = 8.24
Le = 0.12
Re = 6.80
Should be the dark plot line.

And similarly, the Kewel in Hornresp would look like:
Horizontal cross section area = 452.12 cm2 = 17.8*25.4
Length Top to Driver = 37.10 cm
Length Driver to Port = 59.40 cm
Length Port to Bottom = 10.20 cm
Area of Port = 45.37 cm2 = π*(7.6/2)^2
Length of Port = 11.40 cm
Acoustic Path Length = 59.4
System volume = 48.759 L
Should be the grey plot line.
 

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