if it's .tiff, you'll need something like "alternatiff"
My GSSL - finally finished
- Thread starter [silent:arts]
- Start date
Help Support GroupDIY Audio Forum:
clintrubber
Well-known member
Using InterneTIFF here.
Must say those documents are a bit of a hassle - all pages separated.
There'll be a reason for it, but a single downloadable pdf for instance would have been much easier... and we would already have been discussing the circuit & uses i.s.o. this software-hassle :wink:
Must say those documents are a bit of a hassle - all pages separated.
There'll be a reason for it, but a single downloadable pdf for instance would have been much easier... and we would already have been discussing the circuit & uses i.s.o. this software-hassle :wink:
![[silent:arts]](https://cdn.imagearchive.com/groupdiy/data/avatars/m/0/172.jpg?1620371656){kind=avatar}
[silent:arts]
Well-known member
[quote author="clintrubber"]Just wondering SilentArts, why did you label the thrust-activation-switch 'loud' ?[/quote]
I just called it "loud" without thinking because of the A*P*I 2500.
This is the schamtic I used:
[removed]
I just called it "loud" without thinking because of the A*P*I 2500.
This is the schamtic I used:
[removed]
clintrubber
Well-known member
Thanks for the info & schematic - not really a surprise I rounded off to the same values you already had in your unit :wink:
How would you describe the influence on the sound with/without this filter ?
BTW/FWIW, long ago there was a circuit for a 'tilt'-control in EW+WW-mag, kind of rotating the transfer around a common point, say 1kHz. Can't remember how that circuit exactly went, but it wasn't much more than one or two opamps, a pot and some R's & C's. It probably could be used to control the amount of 'thrustyness'...
Regards,
Peter
How would you describe the influence on the sound with/without this filter ?
BTW/FWIW, long ago there was a circuit for a 'tilt'-control in EW+WW-mag, kind of rotating the transfer around a common point, say 1kHz. Can't remember how that circuit exactly went, but it wasn't much more than one or two opamps, a pot and some R's & C's. It probably could be used to control the amount of 'thrustyness'...
Regards,
Peter
[silent:arts]
Well-known member
[quote author="clintrubber"]How would you describe the influence on the sound with/without this filter ?[/quote]
Will tell you after the weekend - the studio date changed, but we will have some more time to test :thumb:
Will tell you after the weekend - the studio date changed, but we will have some more time to test :thumb:
clintrubber
Well-known member
All fine !
Bye,
Peter
Bye,
Peter
[silent:arts]
Well-known member
Today I have done some measuring:
(using Neutrik A2D, input impedance = 100K, output impedance 15R, GSSL switched IN but no gain reduction @ unity gain, max out measured with 15 dB gain)
Max. Input: +22 dBu balanced < 1% THD
Max. Output: +28 dBu balanced < 1% THD
Frequency Response: 10Hz to 20kHz <+0 -0.5 dB. -0.5 dB is ca 30kHz, -3 dB ca 75kHz
THD+N: even with the THAT2159 VCAs I can callibrate the units to < 0.009% @ +6 dBu 20Hz ? 20kHz
Noise: < 80 dBq (right channel 2.5 dB better) 20Hz to 20kHz
Dynamic Range: 108 dB referenced to +28 dBu, 20Hz to 20kHz
Crosstalk: < 73 dB @ +6 dBu 20Hz ? 20kHz
Pflichtenheftkompatibel !!!
:thumb: :thumb: :thumb:
(using Neutrik A2D, input impedance = 100K, output impedance 15R, GSSL switched IN but no gain reduction @ unity gain, max out measured with 15 dB gain)
Max. Input: +22 dBu balanced < 1% THD
Max. Output: +28 dBu balanced < 1% THD
Frequency Response: 10Hz to 20kHz <+0 -0.5 dB. -0.5 dB is ca 30kHz, -3 dB ca 75kHz
THD+N: even with the THAT2159 VCAs I can callibrate the units to < 0.009% @ +6 dBu 20Hz ? 20kHz
Noise: < 80 dBq (right channel 2.5 dB better) 20Hz to 20kHz
Dynamic Range: 108 dB referenced to +28 dBu, 20Hz to 20kHz
Crosstalk: < 73 dB @ +6 dBu 20Hz ? 20kHz
Pflichtenheftkompatibel !!!
:thumb: :thumb: :thumb:
matthias
Well-known member
sauber !!
matthias
Well-known member
does anyone have a link to the a-p-i patent...??
[silent:arts]
Well-known member
Michael Krusch
Well-known member
So, weekend is over now. How does it sound? :grin:
[silent:arts]
Well-known member
[quote author="Michael Krusch"]So, weekend is over now. How does it sound? :grin:[/quote]
how does it sound :?: killer :green:
haven't been in the mastering studio because I was called Friday doing a remix until Sunday, so I can only tell you my own experience with it.
in the remix I had 3 to 5 different drum loops running together all the time, sounding like that. I put a GSSL on the loop bus, compressing about 8 - 12 dB at 4:1. great - now the loops sounded like from one source, punchy but round. the different sounding kicks became ONE when playing together, without any EQ or anything, just the GSSL :thumb:. HiHats and Percussion went more to the back in the Mix compressed this hard, so I turned on this little THRUST filter: unbelievably, they came back. I did the whole track with no EQs on the drum loops, and it sounded like it was one big punchy loop instead of 5 different.
I'm not good describing sound, but I'm totally happy with the GSSL - and the THRUST modification, I even wouldn't trade it for an XLogic compressor I have worked with before.
now I need some other dynamic DIY ... :green:
how does it sound :?: killer :green:
haven't been in the mastering studio because I was called Friday doing a remix until Sunday, so I can only tell you my own experience with it.
in the remix I had 3 to 5 different drum loops running together all the time, sounding like that. I put a GSSL on the loop bus, compressing about 8 - 12 dB at 4:1. great - now the loops sounded like from one source, punchy but round. the different sounding kicks became ONE when playing together, without any EQ or anything, just the GSSL :thumb:. HiHats and Percussion went more to the back in the Mix compressed this hard, so I turned on this little THRUST filter: unbelievably, they came back. I did the whole track with no EQs on the drum loops, and it sounded like it was one big punchy loop instead of 5 different.
I'm not good describing sound, but I'm totally happy with the GSSL - and the THRUST modification, I even wouldn't trade it for an XLogic compressor I have worked with before.
now I need some other dynamic DIY ... :green:
Svart
Well-known member
thanks for the schemo, going to be working on some PCBs shortly.. however it's still too early to think here... and I'm not understanding the hookup i think.. the schemo has two sections with connectors.. where do they go?
:green:
:green:
[silent:arts]
Well-known member
[quote author="Svart"]the schemo has two sections with connectors.. where do they go?[/quote]
they go to a switch. PL1-1 to PL1-2 is Filter out, PL1-3 to PL1-2 is filter in.
PL2-3 and PL2-4 are connected instead of the 47K resistors on the main PCB (red and orange wire on the picture), PL2-5 is the yellow wire. the brown (PL2-2) and the black (PL2-1) wires are +/-15V. ground is taken through the sockets I placed in instead of the transformer.
they go to a switch. PL1-1 to PL1-2 is Filter out, PL1-3 to PL1-2 is filter in.
PL2-3 and PL2-4 are connected instead of the 47K resistors on the main PCB (red and orange wire on the picture), PL2-5 is the yellow wire. the brown (PL2-2) and the black (PL2-1) wires are +/-15V. ground is taken through the sockets I placed in instead of the transformer.
Svart
Well-known member
ok so pl2-3 and pl2-4 go where the 47k summing on the PCB would be, do they replace or simply parallel? the power pins i got. the rest is kinda not making sense!
i think i better get some coffee and some breakfast because for some reason i'm still confused!
sorry!
EDIT: I'm starting to do a PCB forthis, would people like through hole or SMD for this? SMD could be a TINY board.. which is always a good thing i think..
i think i better get some coffee and some breakfast because for some reason i'm still confused!
sorry!
EDIT: I'm starting to do a PCB forthis, would people like through hole or SMD for this? SMD could be a TINY board.. which is always a good thing i think..
Through-hole components are easier to find and to work with..
[silent:arts]
Well-known member
Michael Krusch
Well-known member
[quote author="[silent:arts]"][quote author="Michael Krusch"]So, weekend is over now. How does it sound? :grin:[/quote]
how does it sound :?: killer :green:
...
[/quote]
So I think I need this little filter. :grin:
The what compressor is equiped with a simular filter and if you put it on a drum loop it will sound much more open in the stereo field. Nothing I can do with any other compressor.
But the what compressor is a little bit slow for drums, so I have to make a version with attack and release controls.
how does it sound :?: killer :green:
...
[/quote]
So I think I need this little filter. :grin:
The what compressor is equiped with a simular filter and if you put it on a drum loop it will sound much more open in the stereo field. Nothing I can do with any other compressor.
But the what compressor is a little bit slow for drums, so I have to make a version with attack and release controls.
jensenmann
Well-known member
The featurelist for my next Gssl is growing and growing....
:grin:
I found some very nice oldschool meters which are biiiiggg. I will have to use a 3HE case. This means there´s a lot of space wanting to be filled with frigglefraggle funny electronic features.
silent:arts, your description sounds really interesting :thumb:
:sam:
Jens
:grin:
I found some very nice oldschool meters which are biiiiggg. I will have to use a 3HE case. This means there´s a lot of space wanting to be filled with frigglefraggle funny electronic features.
silent:arts, your description sounds really interesting :thumb:
:sam:
Jens
Svart
Well-known member
oh oh oh, ok i got it now. sorry, i had to get something to eat and clear my head a bit. when you said "filter out" i wasn't understanding that it was still an active circuit just buffering instead of being switched out completely!
sorry!
I'll have some PCBs drawn up shortly.
sorry!
I'll have some PCBs drawn up shortly.
