I just hope LINE6 will add the possibility to link amp model B ton channel B of a signle DT amplifier.

Maybe I was not clear enough and I apologize. I must admit title may lead to confusion

Assign AMP model A to channel A OR AMP model B to channel B

In this setup, I want to switch from clean tone to a heavy distortion just by hitting à FS to which I assigned many controls. Pressing FS8 change from clean sound (Enter Sandman Intro) to heavy distortion by changing amp model AND activating some effets. Amps models are not used together but in toggle mode, one at a time.

Default setup (HD500 initial state) = Amp model B: Hiwatt 100, clean mode (Voicing 1, Class A, Pentode) + effects. Amp model A is OFF.

Pressing FS8, turns amp model B OFF and amp model A ON.

Doing this, I see DT50 switching from channel B to channel A and all parameters defined for amp model A are applied to channel A (Class A/B, Pentode, Voicing IV)

But if I want amp model B sounds like I want, I must manually "prepare" channel B and set parameters as described. If I forget to set channel B prior to using this setup in HD500, I can end up with anything but what I originally planned. No big deal in practice mode but during live performance, not good

Since changing setup in HD500 requires more steps than for X3 LIVE, I found that it is easier to define 2 amps in the same setup and switch from amp model A to amp model B (and activate whatever effects you need for each sound) by pressing only a single switch.

Before using DT as my main amp, HD500 was connected to a mixing console and the setup was working as expected but without the warm sound of the DT amp.

Again, if it was possible to assign amp (in fact pre-amp as recommanded by LINE6) models to both channels (one at a time) of a single DT amp, I could reproduce the ease of switching amps in the same setup.

You are right and I think the way I wrote the title is not correct.

In fact, I want to use amp model A OR amp model B.

Please see answer I posted two minutes ago.

Thanks for the interest in my posting.

Regarding amps, emulating A/B box with volume pedals is not a bad idea if both amps use the same DT setup (Voicing, Pentode/triode, amp class), In my case, the 2 amps use very different setup.

• Clean Sound

          Hiway 100 pre

          4X12 Hiway cab

          Class A

          Voicing I

          Pentode

• Distorted sound

          Treadplate pre

          4X12 Tread V-30

          Class A/B

          Voicing III

          Pentode

So, switching from A to B with same DT50 setup on channel A doesn’t make the job