Search found 752 matches

by bassbass
27 Feb 2018, 16:46
Forum: Electronics
Topic: Stingray 3 band eq mods.
Replies: 34
Views: 1042

Re: Stingray 3 band eq mods.

What's the new HPF frequency? The input op amp of this pre makes more sense when you see it drawn this way: http://i1248.photobucket.com/albums/hh498/frederickbloggs/MM%203-band%20input%20filter_zpsrotuslyi.jpg?t=1519624801 It's a fairly standard sallen-key 2nd order HPF. https://en.wikipedia.org/w...
by bassbass
17 Feb 2018, 12:49
Forum: Electronics
Topic: Stingray 3 band eq mods.
Replies: 34
Views: 1042

Re: Stingray 3 band eq mods.

yep, the cap across the outer pot lugs limits the upper range. that's why there's not one on the treble pot. the upper range of the treble is limited by both that resonance cap at the input, plus the cap on the feedback loop of the second opamp. by increasing the wiper cap in the mid, you are loweri...
by bassbass
16 Feb 2018, 18:30
Forum: Electronics
Topic: Stingray 3 band eq mods.
Replies: 34
Views: 1042

Re: Stingray 3 band eq mods.

I'm not hearing No Idea why you can't hear this. By my ear it is very prominent, and goes some way to defining "the stingray sound". But hey, there's all sorts of variables, plus of course we all hear things differently. I'd recommend recording some riffs and playing around with a resonant LPF in y...
by bassbass
14 Feb 2018, 15:50
Forum: Electronics
Topic: Stingray 3 band eq mods.
Replies: 34
Views: 1042

Re: Stingray 3 band eq mods.

Sounds awful! Ha Ha, for sure. Directly buffered pickups will all sound hifi like this. I really meant it as a jumping off point. Definitely read my other posts again - on both forums - for ways to tune the response at the front end of this circuit. That cap really is a big part of "the stingray so...
by bassbass
14 Feb 2018, 11:03
Forum: Electronics
Topic: Stingray 3 band eq mods.
Replies: 34
Views: 1042

Re: Stingray 3 band eq mods.

https://www.talkbass.com/threads/diy-st ... 57/page-17

For anyone still interested in tweaking their 3-band, on TB right now, there is a parallel discussion about that weird 2.2n cap across the input.

The current discussion is from post #333.

(Full disclosure, I'm Robbiek :p )
by bassbass
09 Feb 2018, 22:17
Forum: Electronics
Topic: Stingray 3 band eq mods.
Replies: 34
Views: 1042

Re: Stingray 3 band eq mods.

The 2 band eq isn't sizzly like the 3 band.
Put a 2n2 cap across the input and it will be...
by bassbass
09 Feb 2018, 14:10
Forum: Electronics
Topic: Stingray 3 band eq mods.
Replies: 34
Views: 1042

Re: Stingray 3 band eq mods.

t's actually more like 60Hz, not 100Hz. A Just found an old spice model I did of this pre. We can split the difference mate. The roll-off is from 80Hz. And I agree with a little bass roll-off for sure. I usually design something in there. A pre that goes down to DC is going to kill speakers, especi...
by bassbass
09 Feb 2018, 09:35
Forum: Electronics
Topic: Stingray 3 band eq mods.
Replies: 34
Views: 1042

Re: Stingray 3 band eq mods.

Yeah, it is kind of crude to just have unbuffered filters like that at the front end, but really, this was only ever designed to work with a specific pickup, so it's understandable. These days virtually all preamps, pedals and really every audio circuit will have a dedicated buffer right at the outs...
by bassbass
08 Feb 2018, 23:32
Forum: Electronics
Topic: Stingray 3 band eq mods.
Replies: 34
Views: 1042

Re: Stingray 3 band eq mods.

I'm another player who generally finds the stock 3 band eq, a little too bright and scratchy. Did you try removing that cap altogether? I think this will give you a far more natural treble response. That cap is straight across the pickup. There's no pot or anything in there, so yes it's a LPF, but ...
by bassbass
06 Feb 2018, 12:30
Forum: Electronics
Topic: Question about wiring a PJ bass...
Replies: 19
Views: 643

Re: Question about wiring a PJ bass...

The mixing resistors work and is simple, but will pad down the output and make everything darker. Jaco didn't like it and John Entwistle did, so just a matter of taste. Nah, don't use the old stacked knob jazz circuit. The resistors in this summed the wipers and were to isolate the volume pots. Iso...
by bassbass
05 Feb 2018, 11:44
Forum: Electronics
Topic: Question about wiring a PJ bass...
Replies: 19
Views: 643

Re: Question about wiring a PJ bass...

Well... I didn't say it was impossible. Instead of a wire where the two vol pots are joined, try a couple of 15k or 22k resistors, with their junction running to the jack. Then move the wire to the tone pot over to the wiper of the P pickup vol. This will give you some isolation. A couple of resisto...
by bassbass
04 Feb 2018, 11:04
Forum: Electronics
Topic: Question about wiring a PJ bass...
Replies: 19
Views: 643

Re: Question about wiring a PJ bass...

I've experimented a lot with this idea over the years. Firstly, if you isolate the pickups by whatever means, then combine their signals, it's actually very hard to hear which has had its treble rolled down. You usually need to tap both with a metal object. OTOH, if you have a blend pot, and you wan...
by bassbass
19 Jan 2018, 19:04
Forum: Lutherie
Topic: Shim in the pocket
Replies: 3
Views: 379

Re: Shim in the pocket

above the 15th fret don't ring out as much as they do elsewhere. It was worse before, I raised the saddles a bit and added a bit more relief Without actually seeing the neck, it's only possible to respond with generalisations, but just remember that the trussrod doesn't effect the neck past the 14t...
by bassbass
19 Jan 2018, 18:50
Forum: Basses
Topic: Maton JB4 Lives Again! (The Proof Is Here)
Replies: 130
Views: 19696

Re: Maton JB4 Lives Again! (The Proof Is Here)

the CITES rosewood issue, Back in the 80's AFAIK, Maton used "african rosewood" as fretboards, but stained darker to resemble ebony or (Indian) rosewood. African Rosewood is now well known as Bubinga, thanks especially to the Warwick Thumb. And it is a good timber for fretboards. (FWIW, it is not b...
by bassbass
09 Dec 2017, 14:59
Forum: Electronics
Topic: Mesa Powerhouse Drivers
Replies: 29
Views: 1130

Re: Mesa Powerhouse Drivers

what I mean is: have you enquired about genuine re-cone kits?