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Chienmortbb

Basschat 1x12 Active FRFR Cabinet

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It's Looking good and a similar concept that I had in mind, even down to the same power amp module. My only proposed addition would be to consider either phantom power on the balanced input or a DC out to power the effect pedal. Thus removing the need for either batteries or an additional power brick.? Any thoughts?

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On 15/07/2019 at 19:12, basstone said:

It's Looking good and a similar concept that I had in mind, even down to the same power amp module. My only proposed addition would be to consider either phantom power on the balanced input or a DC out to power the effect pedal. Thus removing the need for either batteries or an additional power brick.? Any thoughts?

It can be done but both add complication. Pedal supply would be a 9V regulator and the aux supplies on the 125ASX2 has a limited current draw, 350mA if I remember rightly.  This is not even enough to power a Zoom B1 ON or B1 Four let alone a Helix. The HX Stomp needs 3A at 9V.

I could run the pre-amp supplies at +/-9V to simplify matters but that would reduce the headroom in the preamp. I have assembled a fixed voltage +/- 15VPSU for the preamps 

Phantom Power could be put in the final unit but for the prototype I want to prove the concept soI am keeping it simple. 

Personal natters are keeping me from the project at the moment but it is progressing if more slowly than I had hoped.

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12 hours ago, Chienmortbb said:

It can be done but both add complication. Pedal supply would be a 9V regulator and the aux supplies on the 125ASX2 has a limited current draw, 350mA if I remember rightly.  This is not even enough to power a Zoom B1 ON or B1 Four let alone a Helix. The HX Stomp needs 3A at 9V.

I could run the pre-amp supplies at +/-9V to simplify matters but that would reduce the headroom in the preamp. I have assembled a fixed voltage +/- 15VPSU for the preamps 

Phantom Power could be put in the final unit but for the prototype I want to prove the concept soI am keeping it simple. 

Personal natters are keeping me from the project at the moment but it is progressing if more slowly than I had hoped.

OK I understand and agree it will be good to prove the concept. I am also am aware of the amp module aux power limitations and any external power output would need to take that into account. I have a zoom A3 and B1Xon that I plan to use with the cab and both have current draw of about 100mA  9v measured but are quoted as 500mA in the specs.

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