Before the "right" pre-amp sorted the bass problem, how did you connect up the amp to it's source?
What were the impedances?
What DC blocking was inserted?
What RF filters were inserted?
What cable did you use?
How long was it?
How much capacitance did it present to the source?
Telling us it didn't work tells us next to nothing.
What didn't work?
shown in post #232
instrument connected directly to power amp
its built to do that
just not to drive 2kohm
instrument preamp, 500ohm output
power amp is maybe 2kohm
connect cable, normal shielded, 1/2 metr
3meter instrument cable from instrument
it was quite 'noisy', and with poor definition
needless to say, 2kohm is a tough load
the hifi preamp I put in between the two is designed to drive this power amp
insignificant output impedance, and supposed to drive any length of cable
no noise now, so it obviously works
I would like a short scale 6-string but doubt there are any
i dont feel confortable playing 6#bass , the neck is to wide/thick for my small hands. i´m a small 1,66m man with small hands
you like slap bass or not ?
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you like slap bass or not ?
nah, not really
and I have no intention of trying
6-string
short arm with small hands, me too
but I think its a matter of technique, and playing style
no doubt, the more you strech out your arm, the harder it gets to move them fingers
I try to play on most possible 'bands'/nodes
but I have seen bass players hold their hand in the same place, and almost no move of fingers
and that through most of a whole piece of music
I find that very strange
well, Im learning, and studying
so the more nodes played, the more I learn, hopefully
what´s the power of your amp ?
fore what its worth, a few pics of amps 'internals'
instrument preamp is switched on by plugging in signal jack, and off by pulling it out
quite clever, but also means I would need to switch off power amp first
and being battery powed, I cant leave the instrument preamp on, when not playing
so, the 'shunted' in control preamp solved this
I just switch off signal on that, and I can remove instrument jack withou problems
but in the long run I really need to find or build a 9V external power supply
but my plan of building a special preamp still stands
as does the plans to build better speaker
but fore now, this works ok
Attachments
nah, not really
and I have no intention of trying
6-string
short arm with small hands, me too
but I think its a matter of technique, and playing style
no doubt, the more you strech out your arm, the harder it gets to move them fingers
I try to play on most possible 'bands'/nodes
but I have seen bass players hold their hand in the same place, and almost no move of fingers
and that through most of a whole piece of music
I find that very strange
well, Im learning, and studying
so the more nodes played, the more I learn, hopefully
You should try some slaping , very addictive technique , i taught my self how to slap by reading books/watching videos
you´re looking for something like this :
Brice HXB-406 Short Scale 6-String Bass Guitars at Buzzard's Bass Guitar Shop
or this :
http://www.conklinguitars.com/custom_7_string_short_scale_bass.html
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hey, 30" 6string, thats really cool, thanks
Brice design looks familiar
Ibanez or Cord maybe
slap bass ? nope, not for me
its exstremely impressive, but makes little sense to me
but then, Im also very tired of funk, as such
if playing 'funk', I would much prefer the Weather Report style
Hi,
I'd recommend trying Can't Stop by the Red Hot Chili Peppers, if you want to get into slap bass. I use a cheap (Encore) 4-string that can sound nice. With 5- and 6- string basses, you'll find the strings are closer together so slap bass becomes more difficult (hitting a single string accurately is difficult enough with 4 strings).
Chris
I'd recommend trying Can't Stop by the Red Hot Chili Peppers, if you want to get into slap bass. I use a cheap (Encore) 4-string that can sound nice. With 5- and 6- string basses, you'll find the strings are closer together so slap bass becomes more difficult (hitting a single string accurately is difficult enough with 4 strings).
Chris
i dont like red hot but i know Flea , you are right for slap a 4# is betterHi,
I'd recommend trying Can't Stop by the Red Hot Chili Peppers, if you want to get into slap bass. I use a cheap (Encore) 4-string that can sound nice. With 5- and 6- string basses, you'll find the strings are closer together so slap bass becomes more difficult (hitting a single string accurately is difficult enough with 4 strings).
Chris
shown in post #232
instrument connected directly to power amp
its built to do that
just not to drive 2kohm
instrument preamp, 500ohm output
power amp is maybe 2kohm
connect cable, normal shielded, 1/2 metr
3meter instrument cable from instrument
it was quite 'noisy', and with poor definition
needless to say, 2kohm is a tough load
2K fed from 500 ohms is 4/1, so it's not a particularly tough load, although I'd prefer at least 5/1.
It wouldn't cause the problems you had though, so I suspect there was something else? - do you have the circuits for both input and output?.
2K fed from 500 ohms is 4/1, so it's not a particularly tough load, although I'd prefer at least 5/1.
It wouldn't cause the problems you had though, so I suspect there was something else? - do you have the circuits for both input and output?.
oh, I thought factor 1 to 100 would be 'recommended'
not sure what you ask, 'curcuits fore in and out ?
if you mean schematic, no, I have not been able to find any
tho I think output impedance of preamp driving power amp now is something like 10ohm, or even less
but that info I might be able to find
thats all I changed
heck, maybe the high gain instrument pre doesnt like to be placed on top of power amp, I dont know
but I tried to move it around, with no result
The source must be capable of driving the receiver and the cable connecting them.
If the 500ohm output impedance transmitter is incapable of driving a 2k load then redesign the link.
It's as simple as that.
There must be some advice from the manufacturer/retailer of the 500ohm source.
If the 500ohm output impedance transmitter is incapable of driving a 2k load then redesign the link.
It's as simple as that.
There must be some advice from the manufacturer/retailer of the 500ohm source.
It's as simple as that.
There must be some advice from the manufacturer/retailer of the 500ohm source.
he would probably tell me to use the 100ohm balanced out
not his fault Im fooling around with other crappy gear
I do not understand saying a 2kom should be an easy load to any 'ordinary' preamp
oh, I thought factor 1 to 100 would be 'recommended'
No, when designing you usually aim for a MINIMUM 5/1.
-
he would probably tell me to use the 100ohm balanced out
not his fault Im fooling around with other crappy gear
I do not understand saying a 2kom should be an easy load to any 'ordinary' preamp
No - in HiFi terms an input is normally around 20K-100K - most cassette decks, tuners etc. wouldn't be happy wiith only a 2K load to feed.
For PA use though, it's perfectly fine fed from a 600 ohm output, and 2K is probably the sort of impedance a microphone input intended for 600 ohm mikes has.
It'll glue back on
yes, will do, sir
its supposed be closer to where the voice and cone is joined/glued
and it will be reinforced, strengthened
cone might get a 'treatment' too
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