Yes, if scaling from that drawing which is already scaled by 0.53x from original full size then scale by factor 0.4/0.53=0.76. If scaling original plan for fullsize 12in Karlaonator then use 0.4x.
Update. I was at the Southeast Michigan Audio Club meeting this past weekend and talk with my friend that makes cabinets as a side job and worked out how to built my Ks with the duel 3" drivers. We are going with 1/2" MDF with a burly maple baffle plate inside that the drivers with mount to, and an overly red mahogany for the outside of the cab. They should look very good when done.
Between our two schedules, we can't get together for a month or so, but with his shop, we should be able to kick them out in a weekend.
More to follow.
Between our two schedules, we can't get together for a month or so, but with his shop, we should be able to kick them out in a weekend.
More to follow.
hello X- Have you run a sim for the Aura NS3-193-8A? Do you think they would work well in the mini K? I have a pair I'm taking out of an old project and would like to reuse them in wooden box.
On another note: the little ones I made with the Sony drivers is starting to sound not so good now that I have had a chance to compare them to some Harpoons from Wooden Design that I'm working on using the Auras.
cheers
On another note: the little ones I made with the Sony drivers is starting to sound not so good now that I have had a chance to compare them to some Harpoons from Wooden Design that I'm working on using the Auras.
cheers
I will run a sim with Aura's when I get a chance. To be fair, you can't compare a salvaged driver with no T/S params for a box that wasn't designed for those drivers with a proper driver in a box designed for them. Maybe the comparison would be the Harpoon with your sony drivers? If you measure the TS on the Sony's I can design a proper mini K box for you.
OK, thanks. I will do more research. As these are old drivers, it will be difficult to find the info.
- AVS ForumGenerally and very simple - stuffing can increase the apparent internal volume (thereby increasing the low frequency output) of the cabinet as well as provide some dampening of standing waves. (most effective with sealed boxes like subs).
Padding reduces those internal reflections/standing waves in ported/vented boxes but has less impact on internal volume. The design of the speaker cabinet (sealed, vented or horn) will dictate which method is best - and some can benefit from using a combination. This can be a more complex subject with some designs like transmission lines, but those are the two general applications.
Padding reduces those internal reflections/standing waves in ported/vented boxes but has less impact on internal volume. The design of the speaker cabinet (sealed, vented or horn) will dictate which method is best - and some can benefit from using a combination. This can be a more complex subject with some designs like transmission lines, but those are the two general applications.
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Will this headphone amp (below) drive a pair of Mini Karlsonator (0.53X) with Dual TC9FD ?
Little Dot Amplifiers • View topic - Little Dot I+ Hybrid Headphone Amplifier
Little Dot Amplifiers • View topic - Little Dot I+ Hybrid Headphone Amplifier
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No. You are in sub 1-watt range and these speakers like at least 8 watts. Try this amp:
Amazon.com: SMSL SA-36A Pro 20WPC TPA3118D2 Digital Amplifier AMP + 24V Power Supply Golden: Electronics
It will drive most fullrange speakers and sounds great stock out of the box.
If you are looking for an excellent headphone amp or pre-amp, check this out:
http://www.jdslabs.com/products/35/objective2-headphone-amplifier/
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@ xrk971 - Im also looking at an inexpensive tube amp. Ive been reading the forums on this one. Any experience with this one ?
MP-301 MK2
REVIEW: Musical Paradise MP-301 MK2 vacuum tube integrated amp
MP-301 MK2
REVIEW: Musical Paradise MP-301 MK2 vacuum tube integrated amp
Karlson enclosure for Fostex FE208
Hi xrk971,
When you have time, can you do a sim on a Fostex FE208 for a karlson and TL enclosure? Or whatever will be the best enclosure for this driver. Below are the TS parameters.
Impedance : 8 ohm
Minimum Frequency Response: 45Hz
Reproduction Frequency Response : fo - 20kHz
S.P.L. : : 96.5dB/W (m)
Rated Input : 34W
Music Power : 100w
Equivalent Diaghram Radius : 81mm (3.19 in)
Equivalent Mass : 12g (0.026 lb)
Magnet Weight : 1.7kg (3.86 lb)
Net Weight : 3.8kg (8.38 lb)
Fs : 45 Hz
Re : 6.7 ohm
Qts : 0.21
Qms : 4.03
Qes : 0.23
Vas : 36.9 L
Xmax : 0.75mm(0.029in)
no : 2.03%
I look forward to the results. Thanks.
Hi xrk971,
When you have time, can you do a sim on a Fostex FE208 for a karlson and TL enclosure? Or whatever will be the best enclosure for this driver. Below are the TS parameters.
Impedance : 8 ohm
Minimum Frequency Response: 45Hz
Reproduction Frequency Response : fo - 20kHz
S.P.L. : : 96.5dB/W (m)
Rated Input : 34W
Music Power : 100w
Equivalent Diaghram Radius : 81mm (3.19 in)
Equivalent Mass : 12g (0.026 lb)
Magnet Weight : 1.7kg (3.86 lb)
Net Weight : 3.8kg (8.38 lb)
Fs : 45 Hz
Re : 6.7 ohm
Qts : 0.21
Qms : 4.03
Qes : 0.23
Vas : 36.9 L
Xmax : 0.75mm(0.029in)
no : 2.03%
I look forward to the results. Thanks.
what is your amp's source impedance? - that will raise qts somewhat.
Carl N. ran 208 Sigma in what he termed "high aspect Karlson" -
Carl's first K-coupler - had to rebuild as 1/2" plywood flexed too much
http://imagizer.imageshack.us/a/img299/8728/chak8x15ug5.jpg
a later testbox - fully curved reflector - vent above the reflector as in the Super 6.5 K-project
http://imagizer.imageshack.us/a/img844/6743/hak8.jpg
FE208 would probably play strong in a classic K12 - there should be a scaling of K15 to work. The Karlsonator is very good and a smart move by Greg B.
Carl N. ran 208 Sigma in what he termed "high aspect Karlson" -
Carl's first K-coupler - had to rebuild as 1/2" plywood flexed too much
http://imagizer.imageshack.us/a/img299/8728/chak8x15ug5.jpg
a later testbox - fully curved reflector - vent above the reflector as in the Super 6.5 K-project
http://imagizer.imageshack.us/a/img844/6743/hak8.jpg
FE208 would probably play strong in a classic K12 - there should be a scaling of K15 to work. The Karlsonator is very good and a smart move by Greg B.