Portable amps

[Outlaws]

I was in the process of adding a speaker output jack to my old Marshall MS-2 when I realized that the internal 8ohm speaker was connected to the headphone out. With nothing inbetween to reduce the ohms when going to the headphones. So could I have just used the headphone out to power an external 8ohm speaker?

I thought headphone have much higher resistance?


Anyways, I made my connects and added my speaker jack to the back side.

This sucker is LOUD now. I blew the speaker about 10 years ago and it would just make a "click" sound ever second or so. So it was only good for headphones since then.

But dang. This thing is almost as loud as my friends MG15 or 20 or what ever he has. Not quite, but its loud enough now that I can even hear it outside.

Anyways, here is a picture of the back.
I think the jack just looks perfect there. I don't see why Marshall does just do this to start with. lol
http://berntson.us/marshall/output.jpg

Since there is no more 3" speaker, I had to fill the hole with something, so I used a blueish/purpleish cardstock that I had. I think it looks like it has a old Plexi cab hooked up now.
http://berntson.us/marshall/plexi.jpg


And one last question. Since there is no permanent speaker hooked up, when I plug back into the headphones and just use that, will there be any risk of damage to this thing since there is no speaker resistance anymore 24/7?

 

[boingoman]

You'll be all set. The thing only puts out about a watt anyway, so no matter if it's headphones or a speaker you aren't likely to blow anything.

Plugging in headphones takes the speaker out of the circuit, so no problems there in any case. Yes, you could have just used the headphone jack. I used to demo those things by plugging the headphone jack into a 8ohm Marshall 2X12 cab. People were shocked.

 

[Outlaws]

You'll be all set. The thing only puts out about a watt anyway, so no matter if it's headphones or a speaker you aren't likely to blow anything.

Plugging in headphones takes the speaker out of the circuit, so no problems there in any case. Yes, you could have just used the headphone jack. I used to demo those things by plugging the headphone jack into a 8ohm Marshall 2X12 cab. People were shocked.

Thanks.

Since you seen to know a bit about these things, do you have any idea what these two wires from the speaker connection are puncturing the clone for? This is the stock 3" speaker.

I don't really get it. Is it to carry the signal into the clone to distort it more? Somehow slow the rate the clone punches to add more "ummmph"?

 

[boingoman]

Those are just the lead wires, that's how cone speakers are made. They are attached to the voice coil under the dust cap.

 

[Outlaws]

Those are just the lead wires, that's how cone speakers are made. They are attached to the voice coil under the dust cap.

LMFAO

I never noticed that before on my other amp speakers.

I guess its because at 10" and 12" with supersized (relativly speaking to a 3" speaker) magnets, it doesn't stand out as much.

 

[boingoman]

LMFAO

I never noticed that before on my other amp speakers.

I guess its because at 10" and 12" with supersized (relativly speaking to a 3" speaker) magnets, it doesn't stand out as much.

And sometimes, the leads don't poke through the main part of the cone, but poke through the part covered by the dust cap.
Whichever.

 

[timmerman]

Hey Outlaws,

This is not in relation to your questions but I really wanted to make the comment: Nice to see that you are using such a little amp and connecting it to a bigger speaker. It is all to easy to plug in into a great old Marshall and sound great eh? Much more character if you can get a big sound out of something small like this. If you can do it with this, sure you know how to handle to bigger guys.

I myself am into this kind of thing in a big way, but my amps may be a little bigger: A use the small pignose and do all kind of things with it, true not as small as yours, guess I need to try some of those tiny ones as well.

Cheers,

Eddie

 

[TexasMusicForge]

Anyone tried this kind of thing with a Danelectro Honeytone? Inquiring minds want to know...

Tio Ed
Austin, TX

 

[Outlaws]

Anyone tried this kind of thing with a Danelectro Honeytone? Inquiring minds want to know...

Tio Ed
Austin, TX

Open it up and check the speaker Ohm. Like boingoman said, it propbably doesn't matter if you just use the headphone jack, butt it would be nice to know anyways.

Is that the Danelectro with the onboard slapback echo?
I always wanted one of those.

 

[timmerman]

ms 4 and headphone output

Boingoman are you familiar with the ms-4?
It probably is an more recent version of the ms-2 and it has an extra speaker.
Last night I tried what you suggested: Hooked up to an 8 ohm speaker with a lead going from the headphone output into the speakersocket of the speakercab.

Guess what? No sound ! Perhaps this one has a different circuit. In this case I may have to get someone to build a dedicated speaker output at the back of the amp. I would also like a dedicated pre-amp output.

Any suggestions, from you or others, which I could put forward to my repair-folks who I may contact to get this job done?

Cheers,

Eddie

 

[Outlaws]

Boingoman are you familiar with the ms-4?
It probably is an more recent version of the ms-2 and it has an extra speaker.
Last night I tried what you suggested: Hooked up to an 8 ohm speaker with a lead going from the headphone output into the speakersocket of the speakercab.

Guess what? No sound ! Perhaps this one has a different circuit. In this case I may have to get someone to build a dedicated speaker output at the back of the amp. I would also like a dedicated pre-amp output.

Any suggestions, from you or others, which I could put forward to my repair-folks who I may contact to get this job done?

Cheers,

Eddie

Try your headphone out as the preamp out. I know I use mine for line-in recording all the time.

Check your PM though by the way.

 

[timmerman]

Thanks Outlaws,

I did sent a reply to your PM but not sure if you did get it as something went wrong. Anyway if you did not receive anything just let me know.

Cheers,

Eddie

 

[Outlaws]

Thanks Outlaws,

I did sent a reply to your PM but not sure if you did get it as something went wrong. Anyway if you did not receive anything just let me know.

Cheers,

Eddie

Got it.

The headphone won't damage your recorder for DI'ing. I have done it numerous times.

 

[timmerman]

Thanks Outlaws for your comments,

When using the headphoneoutput as a DI the levels will be different eh? What I mean is, you are more likely to get a less clearer signal as the impedence levels are different, so you more likely to run into distortion.

Still feel I would like a dedicated preheadphone output.

Anyway it may be better just to use a mike to record the amp: The the amp in a cupboard and mike up the whole lot.

Okay I have more more ideas for this little fun amp, but perhaps better to open another thread for those ideas.

Cheers

Eddie