Dummy

[chip]

Load. I am trying to work this out.

Valve amp head or combo to dummy load then into Br1200= Silent recording of the valve amp.

So. Does it work, how does it/will sound, anyone done it?

Would this be what I am after http://www.ratvalveamps.com/dummy-load

I would like to use the Vox AC4tv mini which has a 16ohm speaker out which disables the on board speaker. Great amp but freakin loud even on the 1/10 of a watt setting.

Cheers.

[Flash Harry]

OK:

A dummy load will protect your amp. You will need a potential divider across the load to protect your BR1200, it won't like the 20 or 30 volts or so out of your amp head. Also you have to think about input impedance, I'd suggest that you put two resistors in series and connect the whole lot in parallel across the dummy load, probably about 300k and 10 k ohm. Take the signal to the BR 1200 line in from across the 10K resistor.

What about the speaker? The speaker adds a lot to the sound of am amp, mainly because guitar amp speakers are not like hifi speakers, the voice coil is designed to move outside of the poles of the magnet which introduces the lovely distortion that we all enjoy.

So although you can get the dirt of the amp, you cannot get the dirt of the speaker. 

If you need more information let me know.

[64Guitars]

I would like to use the Vox AC4tv mini which has a 16ohm speaker out which disables the on board speaker. Great amp but freakin loud even on the 1/10 of a watt setting.

You could make an isolation box for your amp. That way, you'd still get the sound of a real speaker but without the loud volume.

http://bobbyowsinski.blogspot.ca/2012/11/how-to-build-guitar-amp-isolation-box.html

http://bobbyowsinski.blogspot.ca/2014/05/building-guitar-isolation-box.html

One problem with putting your amp in an isolation box is that there's no ventilation so the amp can overheat. You could get around that by buying an extension speaker cabinet which would plug into the amp's external speaker jack (disabling the amp's built-in speaker). Then you can put just the speaker cabinet inside the isolation box. The amp can stay outside the box so the heat can dissipate normally.

Vox makes a speaker cabinet to match the AC4TV amp.

http://www.richtonemusic.co.uk/products/vox_v112tv_speaker_cabinet_to_match_ac4tvh_head.asp

http://www.gak.co.uk/en/vox-v112tv-cab/34226

http://www.dv247.com/guitars/vox-v112tv-guitar-cab--61944

It's discontinued but you might be able to find a bargain on a used one or an ex-demo. Actually, since it's going to be inside the isolation box, it doesn't matter what it looks like so you could get any speaker cabinet.

http://www.richtonemusic.co.uk/amplifiers/cabinets/?index=0&ord=1

The Vox V110NT might be just the thing. It has a 10 inch Celestion VX 10 (exactly the same speaker as your AC4TV) and costs only £89.

http://www.richtonemusic.co.uk/products/vox_v110nt_lil_night_train_speaker_cabinet.asp

[chip]

OK:

A dummy load will protect your amp. You will need a potential divider across the load to protect your BR1200, it won't like the 20 or 30 volts or so out of your amp head. Also you have to think about input impedance, I'd suggest that you put two resistors in series and connect the whole lot in parallel across the dummy load, probably about 300k and 10 k ohm. Take the signal to the BR 1200 line in from across the 10K resistor.

What about the speaker? The speaker adds a lot to the sound of am amp, mainly because guitar amp speakers are not like hifi speakers, the voice coil is designed to move outside of the poles of the magnet which introduces the lovely distortion that we all enjoy.

So although you can get the dirt of the amp, you cannot get the dirt of the speaker. 

If you need more information let me know.

You lost me there Flash. The guy at Rat mods reckons you only need the DL box to line in, there is no mention of the science you  speak of. So no speaker emulation, I would then need a speaker emulation box I suppose?

64. I don't think I would make an isolation box, far to much hassle for someone with little time and absolutely no carpentry skills. The Vox amp is a great little amp, I want to keep it and record it without waking the whole street up, that's why the dummy load is something I am investigating. I have the use of a Orange Micro Terror for the weekend which has headphones out, it may suffice but may not. But, I can get gain out of that one at lower levels than the Vox. The Vox has no gain, just volume and lot's of it. You need to wind it up for dirt.

You got me thinking here. I have the Joyo character pedals which have speaker emulation Guitar to ac tone pedal to. Amp to dummy load to Br1200? Maybe not

[Flash Harry]

Or look for a Line 6 Pod on ebay - I got mine for under £50 and got a lot more than speaker simulation.

[Burtog]

Or look for a Line 6 Pod on ebay - I got mine for under £50 and got a lot more than speaker simulation.

The Line 6 pod does have impressive speaker simulation tho, I borrowed one for a while and recorded with it. I actually thought the speaker sim was better than the GR-55, it feels like you can hear movement of air in the sound, if that makes sense!?!