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speaker for electric violin and cello
speaker for electric violin and cello
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Old 17th July 2019, 02:25 AM   #11
JMFahey is offline JMFahey  Argentina
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Then some good fullrange 8" will be quite adequate.

Hint: I commercially design and build custom Musical Instrument amplifiers, plus pickups and own speakers.
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Old 17th July 2019, 02:42 AM   #12
tilroh is offline tilroh  Australia
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Quote:
Originally Posted by perceval View Post
Then why bother with a speaker-amp system?

Just get headphones!

Connect the violin or cello output to a sound card (Steinberg makes some nice ones with good drivers), USB to computer. Get a DAW, add in some plugins and have hours of endless fun!

Everything would be clean sound, low volume, not affect the neighbours, etc....
That just might be the answer.
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Old 17th July 2019, 08:26 PM   #13
tilroh is offline tilroh  Australia
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Originally Posted by JMFahey View Post
Then some good fullrange 8" will be quite adequate.

Hint: I commercially design and build custom Musical Instrument amplifiers, plus pickups and own speakers.
I'm surprised you recommend a 8" driver. I'd of thought 4" would be plenty.
Do you have a web site? - thanks
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Old 17th July 2019, 09:05 PM   #14
krakatoa is offline krakatoa  Romania
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Here are some of my thoughts on this matter from general knowledge on speaker design frequency range, listening sessions etc. the violin is easier to do because of the limited bandwidth, but the cello will need some special elements to take into account - the large size of the instrument instantly rules out using a small speaker to reproduce it's sound (because of the problem that low freq are harder to reproduce naturally by smaller cones that need to make large excursions and limited SPL again taking into account the need for high quality - no distortion sound) on the other side larger (6.5 inch or larger) cones are better suited and don't have the problem of high frequency extension in this case (expect a freq range of 60 hz - 9000 hz for a cello). My intuition is telling me an open baffle (open back cabinet like with guitars) setup with high Qts driver with a paper cone with good sensitivity (above 91 db), at least 6.5 inches unit or larger and perhaps if you want some metallic resonances to go with the "electric" nature of the cello you can try finding a unit that has a "singing dust cap" made of aluminium to add some metallic zing to the sound.
Variation - if you have say four 4 inch units they might work ok together, depends on the specs of the driver (and it's easier to find one with aluminium dust cap... that sings)
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Old 18th July 2019, 08:50 AM   #15
midrange is online now midrange  United Kingdom
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To a a great extent how closely the electronic instrument copies the sound of an acoustic instrument dictates how important the reproduction of high frequencies is here. The higher notes of an acoustic violin are incredibly difficult to reproduce, and the ones I always use when assessing the upper frequencies of speakers. I would go for a smaller drive unit for this reason, as, to generalise, they are better at reproducing high frequencies.

If the electric cello produces a similar harmonic spectrum to an acoustic one, a 4" driver will be big enough for the purpose required. The fundamentals on the C string are very weak, more than 8dB lower than further up the instrument.

As suggested headphones might be a good solution. I had 2 colleagues in an orchestra who bought electric violins for practising in London flats using headphones, where using their "real" violins would have been a problem with neighbours. They find them really worthwhile.
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Old 19th July 2019, 06:33 AM   #16
perceval is offline perceval  Taiwan
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Originally Posted by midrange View Post
....The higher notes of an acoustic violin are incredibly difficult to reproduce, and the ones I always use when assessing the upper frequencies of speakers. ....
I've heard speakers do incredibly bad reproduction of violins... even very expensive ones..

Lately I've found this little gem... it excels on string instruments, and percussion.
Very realistic reproduction of violins.

Give it a try. Coupled with a woofer for the low end, the SBAcoustics SB65 2.5" is a little marvel.

21/2" SB65WBAC25-4 :: SB Acoustics
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Old 19th July 2019, 08:06 AM   #17
chris661 is offline chris661  United Kingdom
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Some thoughts...

- You might not want accurate reproduction of whatever is coming from the instrument pickup.
- If this is definitely only ever going to be used at low volumes at home, then a 4-5" driver will do fine. Pick one that's reasonably flat out to 10kHz or so, and build a box that'll help it get down to 65Hz or whatever.
- If this might end up being used out on the road for gigs or busking, go for an 8" coaxial as a minimum.
- Make sure you've got some EQ. See point 1.

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Old 19th July 2019, 08:41 AM   #18
midrange is online now midrange  United Kingdom
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Quote:
Originally Posted by perceval View Post
I've heard speakers do incredibly bad reproduction of violins... even very expensive ones..

Lately I've found this little gem... it excels on string instruments, and percussion.
Very realistic reproduction of violins.

Give it a try. Coupled with a woofer for the low end, the SBAcoustics SB65 2.5" is a little marvel.

21/2" SB65WBAC25-4 :: SB Acoustics
Thanks for this. No British distributor, probably have to try from Germany.
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Old 20th July 2019, 01:34 AM   #19
perceval is offline perceval  Taiwan
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They're small, so shipping so be reasonable.

Do give them a break in period. They need some 50 to 100 hours of playing at medium levels. And then..... Wow.
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Old 20th July 2019, 02:45 AM   #20
JMFahey is offline JMFahey  Argentina
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Quote:
Originally Posted by tilroh View Post
I'm surprised you recommend a 8" driver. I'd of thought 4" would be plenty.
Do you have a web site? - thanks
No need to use such a small speaker, 8" will reach high enough and as a bonus will have an easier life producing significant SPL at 65 Hz you mentioned.
Specially considering the cello.

No Internet page, Im old style, working Professionally in this field for 50 years now, most of it before widespread use of Internet so never got into it.

Musicians know me and visit my shop

Over 14000 amplifiers and speakers delivered by now, Musicians know for long time I am the "go to" guy for "what the Chinese wont make" including Violin/Cello/Double Bass/Piano/Accordion/Bandoneon/(classic) Harp/Tango-Classic-Jazz Guitar/Sax/Flute/etc. custom amplifiers and speakers, most "just one", plus *crazy* instruments as used by Les Luthiers which are in a whole separate class all by themselves.

Clasificacion de instrumentos informales - Les Luthiers (Los Luthiers de la Web)
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Last edited by JMFahey; 20th July 2019 at 02:47 AM.
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