aion Solstice Gebruiksaanwijzing - Pagina 5
Blader online of download pdf Gebruiksaanwijzing voor {categorie_naam} aion Solstice. aion Solstice 10 pagina's. A great mid-gain amp-like distortion with a 3-band eq. most notably used by jonny greenwood of radiohead and kevin shields of my bloody valentine.
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BUILD NOTES
Clipping switch
The clipping switch allows you select between different sets of diodes.
The downward position of the toggle switch is the stock Shredmaster clipping arrangement, which has
one silicon diode in each direction. The upward position of the toggle is two diodes in each direction, a
higher clipping threshold with a more open sound. The center position leaves only the LEDs for a more
dynamic and transparent tone.
If you look at the schematic, you'll see that the LEDs, D8 and D9, are always connected. However, in
either the up or down switch positions, the lower-threshold diodes are connected and so the LEDs have
no effect—there's no signal remaining for them to clip.
Feel free to experiment, For example, you could jumper D7 for asymmetrical clipping. Or, you could omit
the two clipping LEDs for a diode-lift mode in the center position.
Treble cut capacitor
Many people feel that the biggest flaw with the stock Shredmaster is the steep treble cut introduced
near the end. C16 is a 1nF capacitor that forms a low-pass filter right before the volume control and is
solely responsible for this cut. The common consensus is that the circuit will perform much better if this
capacitor is dropped down to 330pF or 470pF to allow more treble through this stage.
Schematic notes
If you search online for Shredmaster schematics, you could pull up five of them and each one would
probably be slightly different. Early traces of the pedal were all over the map, and there was especially a
lot of confusion surrounding the portion near C4 and R3 where the effect was grounded in bypass mode.
The two capacitors and two resistors in series should be simplified down in a true-bypass setup, but it
was often not done correctly.
The correct schematic is the one in
this post from
FSB. From here you can see why the different values
were circulating around. The series value of C15 and C6 (using the PhnomPenh2004 schematic's
numbering), 220n in series with 100n, is 68n. So some schematics correctly show the capacitor as 68n,
while others show it as 220n, dropping the second capacitor entirely. Some DIY Shredmaster projects
maintain both capacitors, but this is really not necessary at all—especially since 68n is a standard value
and easy to find.
Some schematics show 4.1k for R7 and R8 (again, using the PhnomPenh2004 schematic numbering)
for 8.2k total. It's possible that some variants used this value. However, the unit shown in the photos is
definitely 4.7k. Two of these in series is 9.4k total, with 9.1k being the nearest common value. 10k is also
fine if that's all you have—it basically just reduces the minimum gain setting by a tiny amount.
Another common discrepancy is R1, the 47k resistor in the second-to-last op-amp stage (R8 in this
project). Some schematics show this as 39k. It's possible that some versions of the pedal used 39k there,
but based on the photos in the FSB thread, it's definitely 47k in that unit.
SOLSTICE AMP DISTORTION
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