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音楽機材 Aion Electronics CERULEANのPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Aion Electronics CERULEAN 10 ページ。 Amp overdrive

BUILD NOTES

Clipping switch

The clipping switch allows you to select between soft clipping (stock Bluesbreaker), hard clipping (King

of Tone) and no clipping (boost mode).

You can change the function of this control by using a different type of switch.

• Use a DPDT on-on-on if you want the middle setting to be "both" instead of "neither". However, be

aware that the hard-clipping mode has a lower threshold than soft-clipping mode, so soft + hard

mode will not sound much different than hard mode by itself.

• Use a DPDT on-on if you only want to have hard and soft clipping modes available.

Mode switch

The Mode switch selects between V1 (pre-95) and V2 (post-95) versions of the circuit. The only

differences are the values of two resistors, R4 and R6, coming off the first op-amp stage feedback loop.

In the first version, these resistors were 27k and 33k respectively. In the second version, these were

dropped to 4.7k and 3.3k, which raises the gain and reduces the bass somewhat.

The Mode switch changes these two resistors from V1 to V2 values. Rather than switching between two

different resistors, it adds resistors in parallel with the existing ones for the same effective value (or at

least within 2%, which is well inside of the 5% tolerance of the carbon film resistors used in the original).

By doing it this way, we can avoid momentarily disconnecting the feedback loop's path to ground, which

could cause an audible pop when the switch is used.

Gain range switch

The DIP switch sets the gain range of the Drive control. In normal mode, it's equivalent to the stock

Bluesbreaker circuit. Medium- and high-gain modes shift the range higher, allowing for an extended

range of tones not found in the original pedal.

The DIP switch settings are as follows:

Note: Position 1 overrides position 2, so if both switches are in the up position, it will be in normal mode.

CERULEAN AMP OVERDRIVE

Normal

1 2

Medium

1 2

High

1 2