- was going to yank a PRV 10FR300 from a 0.62 scaled Karlson K
15 and though- might as well give it a go with mono TPA3255 and a bass guitar preamp pedal.
- well its pretty darn good and can do some strong treble transients without folding or obvious distortion.
I might demo it but am losing use of both arms, etc. and its difficult to hold a guitar. I used a cheap but cheerful Glarry short scale (30") bass with one single coil pickup- very extended on the top - weak in the E string. (will raise that end and see what compromise I can get.
Small bass rigs need not be tuned low nor go low - the majority of what I've heard relied upon a bass guitar's lower note's harmonics being considerably stronger than the fundamental.
15 and though- might as well give it a go with mono TPA3255 and a bass guitar preamp pedal.
- well its pretty darn good and can do some strong treble transients without folding or obvious distortion.
I might demo it but am losing use of both arms, etc. and its difficult to hold a guitar. I used a cheap but cheerful Glarry short scale (30") bass with one single coil pickup- very extended on the top - weak in the E string. (will raise that end and see what compromise I can get.
Small bass rigs need not be tuned low nor go low - the majority of what I've heard relied upon a bass guitar's lower note's harmonics being considerably stronger than the fundamental.
These were built with the intention of small PA duty, they have not been used for that, took a whole lot of work to make them tolerable.
dave
dave
That is very pretty (is that a B200?) here's one of mine fun with acoustic guitar - there's no stepup on the piezo as there's 10 KSN1016 in parallel - each with 56R, A Zobel and 3rd order electric highpass. The single KSN1016 to the left on step transformer is about as sensitive as the 10X array. Celestion's K12H-200TC is well built with a better quality basket than their TF1020 (and Eminence 12LTA)
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did not recognize with the pretty phase plug. I just pulled 10fr300 from the kitlle K and will install a fresh Eminence B102 - which goes to ~3KHz or so. I don't expect B102 to sound as clear with roundwound strings as 10fr300 - but it might do ok s a two-way with K-tube or for fun 3fe35 in a little
K as 2-way of FAST.
K as 2-way of FAST.
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I'm planning a faux-harp/harpsichord using the alnico IREL 2.5x10. Crazy even for me!
https://www.diyaudio.com/community/threads/full-range-speaker-photo-gallery.65061/post-7728857
I once "made" a Chinese qin/zither by mixing xylophone and folk guitar instruments on my Yamaha digital piano.
https://www.diyaudio.com/community/threads/full-range-speaker-photo-gallery.65061/post-7728857
I once "made" a Chinese qin/zither by mixing xylophone and folk guitar instruments on my Yamaha digital piano.
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@wchang - hope you upload sound samples/songs on your new creation - I'm a glutton for harpsichord (including those wonderful iron frame Pleyel "revival" instruments and those with pedal clavier)
The new B102 (As opposed to those made 15 or more years ago) has less midrange output, and about an octave less treble than the old series which sported qts of 0.23
I'm guessing Zu's later 10" driver is more like the newer B102 than the old one response-wise and coujld work in a pipe / MLTL as small as Zu's original "Druid" tho could use more airspace.
The new B102 (As opposed to those made 15 or more years ago) has less midrange output, and about an octave less treble than the old series which sported qts of 0.23
I'm guessing Zu's later 10" driver is more like the newer B102 than the old one response-wise and coujld work in a pipe / MLTL as small as Zu's original "Druid" tho could use more airspace.
I'm not sure what the thread is about.
If you are asking what a new enclosure should look like for a driver you have on hand, then a bass guitar cab is generally tuned for an F3 of about 50Hz. Of course if your driver can't handle that just prioritze protection from overexcursion.
If you are just having fun with drivers and enclosures you have on hand, go for it.
If you are asking what a new enclosure should look like for a driver you have on hand, then a bass guitar cab is generally tuned for an F3 of about 50Hz. Of course if your driver can't handle that just prioritze protection from overexcursion.
If you are just having fun with drivers and enclosures you have on hand, go for it.
I should hae been more clear - fullrange drivers for musical instrument use - 50 years ago I used a 16 cubic foot (4'x2'x2') Peavey W-bin loaded with Cerwin-Vega 18 with about a 100Hz 1/4 wave path and imagine F3 maybe in the 60's depending upon placement and "high"s not much if any significant past 400Hz.
So maybe you can mark out some constraints? Eg max 3dB down at 41Hz. Smaller driver for highs, larger for how loud you'll go. The baffle can be larger if you want to retain efficiency and smooth response...
If "stereo" is not needed (even harp/harpsichord span might be faked with low/high wideband drivers on opposite ends), I have managed to collect (rescue) several vintage radio console same-size mono-pairs that sounded incredibly musical -- they really were instruments. Nowadays I just LX a mono-pair over a canister. The mono sound does not appear to originate from the "speaker" -- instead a ghostly image floats midair above and well beyond it.
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IIRC 41Hz with a 34" scale bass guitar and typical round wound strings is pretty far down from H2 and H3 so many small cabinets could get by with 2pi response down to 80Hz and fool most of the people most of the time (at least in the past)
Besides Karlson, what other coupled cavity design might work well for electric bass? I'd imagine a V shaped cavity with two drivers and symmetric front chamber aperture (oval perhaps0 could do ok tuned to 110-120Hz.
Here's response of an Acoustic Control 115BK Karlson cabinet with EVM 15L and mic on the ground in my yard. 41Hz appears to be around 28dB down.
Besides Karlson, what other coupled cavity design might work well for electric bass? I'd imagine a V shaped cavity with two drivers and symmetric front chamber aperture (oval perhaps0 could do ok tuned to 110-120Hz.
Here's response of an Acoustic Control 115BK Karlson cabinet with EVM 15L and mic on the ground in my yard. 41Hz appears to be around 28dB down.
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Ok, again I really don't understand what your thread is about or if you acknowledge my post, so I'll try to spell out my point so I can feel it was at least understood. Commercial bass cabs are not tuned to be maximally flat bass extension, they are typically tuned to an F3 of 50Hz or so with a bass boost below that if the driver is capable. The fundamental of a bass guitar is essentially irrelevant because a bass guitar sits ABOVE the drums in the mix for popular music.
Its obvious - I'm not well versed in speaker design - but am too poor health to play again and never a good player. Thanks for the input.
Yes, DIYers have to be careful when evaluating bass.
I'm sitting at a "player harpsichord" listening to Goldberg Variations....
https://www.diyaudio.com/community/...ly-l-r-differences-matter.415335/post-7743119
I'm sitting at a "player harpsichord" listening to Goldberg Variations....
https://www.diyaudio.com/community/...ly-l-r-differences-matter.415335/post-7743119
@leadbelly - it would be nice to have F3 for bass guitar production around 59Hz but that did not and probably does not happen in a lot of combo amps.
one good way is to choose is Bullock's Super Boom Box alignment with ideal qts of 0.312 (it has the best impulse response of the vented alignments) then apply boost at fb (typically 6dB/Q=2) with an underdamped 2nd order highpass filter.
Here's is an Eminence B102 which rolls off above 3K5 or so on the top in a little Karlson box (20.5"H x 14"Wx11"D) playing demo from a bass guitar pickup discussion video. With sine input this speaker makes it down to 80Hz - but with real bass guitar signals, (motoG phone audio) its pretty phat sounding. Its probably a "mini "kick" cabinet - CUBO
Kick15 only extends to 80Hz.
I think fb is around 80Hz - there is emphasis around 120Hz with B102 which would render it rather poor for hi fi use.
one good way is to choose is Bullock's Super Boom Box alignment with ideal qts of 0.312 (it has the best impulse response of the vented alignments) then apply boost at fb (typically 6dB/Q=2) with an underdamped 2nd order highpass filter.
Here's is an Eminence B102 which rolls off above 3K5 or so on the top in a little Karlson box (20.5"H x 14"Wx11"D) playing demo from a bass guitar pickup discussion video. With sine input this speaker makes it down to 80Hz - but with real bass guitar signals, (motoG phone audio) its pretty phat sounding. Its probably a "mini "kick" cabinet - CUBO
Kick15 only extends to 80Hz.
I think fb is around 80Hz - there is emphasis around 120Hz with B102 which would render it rather poor for hi fi use.
Here's a link to Eminence's own bass cab designs for the B102, probably if you search for it yourself it will be a different link:
https://cdn.shopify.com/s/files/1/0270/8665/1462/files/Legend_B102_cab.pdf
I was just trying to point out what commercial designs were like that also consider portability and durability. Obviously for DIY you can build whatever you want. If I were to make my own such maximally flat B102 enclosure I would probably go with traditional ported alignment in a plywood (not MDF) box. I wouldn't bother with permanent EQ, there is a tone knob on almost every single device in a bass rig.
https://cdn.shopify.com/s/files/1/0270/8665/1462/files/Legend_B102_cab.pdf
I was just trying to point out what commercial designs were like that also consider portability and durability. Obviously for DIY you can build whatever you want. If I were to make my own such maximally flat B102 enclosure I would probably go with traditional ported alignment in a plywood (not MDF) box. I wouldn't bother with permanent EQ, there is a tone knob on almost every single device in a bass rig.