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July 25, 2021, 01:27:34 AM

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1
Honey Amp / Re: Power supply suggestions
« Last post by TheBobbyElectric4 on July 24, 2021, 07:53:02 PM »
Worrrd, I think I figured it out.

Much Appreciations!
2
Amplifier Discussion / Re: My K-20X
« Last post by flester on July 23, 2021, 03:44:52 AM »
Great to read stories of people modifying gear like this, and also handing it on to a younger generation. My kids showing no interest in guitar gear yet, sadly. I'm holding out for their  kids.
3
Amplifier Discussion / Re: My K-20X
« Last post by joecool85 on July 21, 2021, 03:13:16 PM »
That solid state amp does not require a load, you can simply turn off the speaker with a switch.

What I would do is connect the line out 10k resistor to the phones jack tip connection instead of the speaker.  Now the line out works when you are on speaker or when on phones.  Now the phones still work, but you can use the phones jack to kill the speaker.   Just plug an unwired plug into the phones jack, and that opens the speaker connection.But a switch works fine too.

Enzo, that's a pretty slick idea! I'm not going to re-wire mine since I rarely use the line out now anyway, but if I ever did another I would probably do it this way.
4
Amplifier Discussion / Re: My K-20X
« Last post by Enzo on July 21, 2021, 01:37:52 PM »
That solid state amp does not require a load, you can simply turn off the speaker with a switch.

What I would do is connect the line out 10k resistor to the phones jack tip connection instead of the speaker.  Now the line out works when you are on speaker or when on phones.  Now the phones still work, but you can use the phones jack to kill the speaker.   Just plug an unwired plug into the phones jack, and that opens the speaker connection.But a switch works fine too.
5
Amplifier Discussion / Re: My K-20X
« Last post by linty on July 21, 2021, 10:46:11 AM »
Thanks will, that makes sense.  From what I see in the modded circuit diagram at the start of this thread, it seems like line out volume would follow speaker volume.  If I wanted to silence the speaker when using line out would I just need to add an spdt to switch between the speaker and a 4 ohm power resistor?
6
Amplifier Discussion / Re: My K-20X
« Last post by willpirkle on July 21, 2021, 08:08:17 AM »
In addition, a line out is designed to drive a high impedance load (>10k, such as the unbalanced input to a mixer, FX return, etc...) while the HP out is designed for very low impedances (8-32 ohms, speakers). A more important difference is that line out on an RCA or 1/4” jack, is designed (by spec) to deliver a specific nominal value of -10dBV, or ~316 mVRMS into that load. There is no formal spec for headphone outputs, so you never know what you’re going to get, which is why some headphone outs are really loud and others are quiet, when driving the same load. Headphone outs are typically noisier as they usually use headphone (low power) IC amps, rather than op-amps but in many cases you can’t really tell the difference (high gain guitar preamps, etc...).
7
Amplifier Discussion / Re: My K-20X
« Last post by Enzo on July 20, 2021, 10:07:50 PM »
LIne out is a signal that is suitable for a mixer or another amp or some line level effect unit.  Headphones out is...tada.... for headphones.
8
Amplifier Discussion / Re: My K-20X
« Last post by linty on July 20, 2021, 11:21:42 AM »
Hoping JoeCool85 is still around for me to necro this thread.  Would you be able to elaborate on the difference (if any) between the line out and the headphone out?  I'm having weird issues with using a K30RX to add reverb and pass the signal along to a mixer and am wondering if maybe this could be a better option than using the ph out.

Thanks!
Steve
9
Honey Amp / Re: Power supply suggestions
« Last post by joecool85 on July 20, 2021, 10:26:25 AM »
Right on.

It's these details in certain facets of life, that somehow tend to escape me....

I just wasn't sure if there may have been something pre-designated on the board, for executing such a mod/addition.

Thank you!

Nothing on-board for this, just ground and positive input voltage.  Like Phil said, you would need to do this offboard like most pedals.
10
Honey Amp / Re: Power supply suggestions
« Last post by TheBobbyElectric4 on July 19, 2021, 01:05:45 PM »
Right on.

It's these details in certain facets of life, that somehow tend to escape me....

I just wasn't sure if there may have been something pre-designated on the board, for executing such a mod/addition.

Thank you!
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