Author Topic: which diy bass preamp?..  (Read 53080 times)

Kipper4

Re: which diy bass preamp?..
« Reply #100 on: April 14, 2013, 01:25:46 PM »
Its a cool low parts well designed circuit mate.
I'd be intrested to see what you work out for the guitar mods.
I should also say I prefer how it sounds through a solid state amp rather than tube.


I think i will put the compressor infront of the pre in my idea for an all in Bass pre/DI
then the distortion with buff and blender.
Is there a way i can make the blender without the buffer?
The Schematics half way down the page.
http://www.beavisaudio.com/techpages/BlocksFragments/


Any help or comments on this order of things is welcome
Rich
« Last Edit: April 14, 2013, 02:12:22 PM by Kipper4 »
Jellybean dodging since 2012.
Smoke me a Kipper. I'll be back for breakfast.

Kipper4

Re: which diy bass preamp?..
« Reply #101 on: April 14, 2013, 02:54:42 PM »
Just cause i'm curious. I tried using it as a DI straight into the sound card to record.
It maybe loud through an amp but its definitly not line level.
I bypassed the 680k on the output and voila just the right level for recording so' i'll have to put a switch in the Bass box to change between Amp and DI levels.
Jellybean dodging since 2012.
Smoke me a Kipper. I'll be back for breakfast.

deadastronaut

Re: which diy bass preamp?..
« Reply #102 on: April 14, 2013, 03:38:52 PM »
strange, my setup is the same....but with mixer

bass-DI-mixer-soundcard.

plenty of level this way...more than enough, my bass preamp at 10oclock on level

and 10 oclock on my mixer trim...


finished my build#2

layout/pcb verified. ;)



blend buffer:  whenever ive tied the blend buffer there is a point at 12oclock where the 'level' drops...very annoying.

a really simple way is to just use a pot..

out of bass preamp to lug 3

out of comp to lug 1

lug 2 overall out...crude, but its the most basic mixer i can think of. :)
http://www.youtube.com/user/100roberthenry

https://deadastronaut.wixsite.com/effects

^ SPACE PATROL FUZZ/ NANO-8 MIDI DRUMS /CHASM REVERB / TREMSHIFTER / FAZE FILTER/ABDUCTOR II DELAY pcb's + WAH LIGHT PLATES. and sausa

Kipper4

Re: which diy bass preamp?..
« Reply #103 on: April 14, 2013, 04:35:42 PM »
i'm struggling to make the preamp work well with almost any distortion i've made.
It works best with the boss sd1 (genuine)
next up is the yjm 308 and the thunder drive although i dont hold much hope with the thunder drive.
I still have a few to go
ocd3
vlo
Gus   GCS o/d
the ts808
wish me luck

In my set up i use the mixer for routing on back of soundcard.
My set up is modest but capable of good sound i think.
Jellybean dodging since 2012.
Smoke me a Kipper. I'll be back for breakfast.

deadastronaut

Re: which diy bass preamp?..
« Reply #104 on: April 14, 2013, 04:52:34 PM »
demo  :)






http://www.youtube.com/user/100roberthenry

https://deadastronaut.wixsite.com/effects

^ SPACE PATROL FUZZ/ NANO-8 MIDI DRUMS /CHASM REVERB / TREMSHIFTER / FAZE FILTER/ABDUCTOR II DELAY pcb's + WAH LIGHT PLATES. and sausa

Kipper4

Re: which diy bass preamp?..
« Reply #105 on: April 14, 2013, 05:16:12 PM »
Very cool.
Superbe mate.
Jellybean dodging since 2012.
Smoke me a Kipper. I'll be back for breakfast.

JebemMajke

Re: which diy bass preamp?..
« Reply #106 on: April 22, 2013, 09:56:17 AM »
Finally I've found some spare time to rebuild my bass preamps. So today I've completed Sunn, Bassy  as @#$%. And big vol boost :D. Which is always great. Especially because we ( my band ) are being forced to play on these little 30w amps. So until i finish that TDA 100w amp I will be using this in front of my 30w amp for boost, and in general to get that sweet sweet sound. Tomorrow I'll do bassman.

deadastronaut

Re: which diy bass preamp?..
« Reply #107 on: April 23, 2013, 03:50:12 AM »
30W?....awwwww.... ;D

are you building both into a box then?.. 8)
http://www.youtube.com/user/100roberthenry

https://deadastronaut.wixsite.com/effects

^ SPACE PATROL FUZZ/ NANO-8 MIDI DRUMS /CHASM REVERB / TREMSHIFTER / FAZE FILTER/ABDUCTOR II DELAY pcb's + WAH LIGHT PLATES. and sausa

JebemMajke

Re: which diy bass preamp?..
« Reply #108 on: April 23, 2013, 09:18:29 AM »
30W?....awwwww.... ;D

are you building both into a box then?.. 8)
Yes :D

deadastronaut

Re: which diy bass preamp?..
« Reply #109 on: April 23, 2013, 09:20:00 AM »
cool. :icon_twisted: :D
http://www.youtube.com/user/100roberthenry

https://deadastronaut.wixsite.com/effects

^ SPACE PATROL FUZZ/ NANO-8 MIDI DRUMS /CHASM REVERB / TREMSHIFTER / FAZE FILTER/ABDUCTOR II DELAY pcb's + WAH LIGHT PLATES. and sausa

mth5044

Re: which diy bass preamp?..
« Reply #110 on: May 21, 2013, 08:13:08 PM »
Nice work, gentlemen. Has anyone tried it at higher voltages? 18/24V, etc.

deadastronaut

Re: which diy bass preamp?..
« Reply #111 on: May 21, 2013, 08:38:02 PM »
nope!..not me anyway.
http://www.youtube.com/user/100roberthenry

https://deadastronaut.wixsite.com/effects

^ SPACE PATROL FUZZ/ NANO-8 MIDI DRUMS /CHASM REVERB / TREMSHIFTER / FAZE FILTER/ABDUCTOR II DELAY pcb's + WAH LIGHT PLATES. and sausa

JebemMajke

Re: which diy bass preamp?..
« Reply #112 on: May 24, 2013, 07:09:52 PM »
I've tried 18v. Works just as well. Maybe more dynamics and less distortion/compression. I've finished layout for both ( sunn 300 and bassman ) on a single board. But those lines are too thin. I'm a newbie to eagle. How can I make those lines a bit thicker?

Jederino

Re: which diy bass preamp?..
« Reply #113 on: May 27, 2013, 04:40:23 PM »
Throwing dastronauts design in mah shopping cart.  Bad ass, man!

garfo

Re: which diy bass preamp?..
« Reply #114 on: May 17, 2015, 01:00:22 PM »
DONE!... 8)








Hi there. i'm planning on building this preamp. I wanted to ask you two things. Why did you use 2n5457 instead of j201's. and why did you go from 1M to 100k on volume pot? Does the 100k let it distort less?

fatecasino

Re: which diy bass preamp?..
« Reply #115 on: June 01, 2015, 07:01:50 PM »
I am a bit confused, what's the exact bill of materials for  deadastronaut 's bass preamp pedal?  :icon_question:

I have done Taylor's tiny giant 20watt amp , but the bass explodes my speaker  :(  Is this preamp circuit suitable for smoothing the bass signal?
« Last Edit: June 01, 2015, 07:11:23 PM by fatecasino »

deadastronaut

Re: which diy bass preamp?..
« Reply #116 on: June 03, 2015, 10:34:42 AM »
http://www.youtube.com/user/100roberthenry

https://deadastronaut.wixsite.com/effects

^ SPACE PATROL FUZZ/ NANO-8 MIDI DRUMS /CHASM REVERB / TREMSHIFTER / FAZE FILTER/ABDUCTOR II DELAY pcb's + WAH LIGHT PLATES. and sausa

fatecasino

Re: which diy bass preamp?..
« Reply #117 on: June 03, 2015, 09:50:47 PM »
Hi!
I just built it, it sounds really nice (I am not a bass player, but I will get a detailed feedback from an actual bass player :) )
Technically I had 2 small problems,
1. I think I have to change the value of both trimpots because they only work for a pretty narrow range, something like 7 and 8 o'clock, just 1mm of rotation, after 8 o'clock the sound disappears through all the way to the right.
2. The 680k just kills all the signal. I get 100% of sound before that and 0% after that. I omitted (?) it and the sound came back.

Do you think that these problems have to do with the build itself or with the design? I guess this exact design has worked perfectly for tens of times :)
If anyone here had the same problems could s/he post any suggestions?

Shangk

Re: which diy bass preamp?..
« Reply #118 on: March 05, 2016, 11:14:11 AM »
Deadastronaut, do you have a list of components for this build ?

thanks

deadastronaut

Re: which diy bass preamp?..
« Reply #119 on: March 06, 2016, 12:59:41 PM »
docs on page 4....
http://www.youtube.com/user/100roberthenry

https://deadastronaut.wixsite.com/effects

^ SPACE PATROL FUZZ/ NANO-8 MIDI DRUMS /CHASM REVERB / TREMSHIFTER / FAZE FILTER/ABDUCTOR II DELAY pcb's + WAH LIGHT PLATES. and sausa