- Allows use of 'Headphones' and 'Line Out' -

If your Amp is not fitted with 'Headphone'-or-'Line Out' Sockets - This Box will solve your Problems.

Also, a lot of (Balanced) 'DI' Boxes use a 'Feed-Through' System where you connect your Valve Amp Speaker Output to the 'DI' Box, then connect the 'DI' Box back to your Speaker. This Dummy Load will REPLACE the Speaker allowing the 'DI' Box to be used Silently (NO Speaker Connected). If you are not interested in a 'Balanced' Output, then the RAT Dummy Load can also be used as a 'DI' Box

All Valve Amplifiers must have a 'Load' at the Output, usually this is a Speaker. If a Valve Amplifier is used without a Load, it will rapidly destroy the Output Valve/s, Output Transformer or Both. The RAT 'VALVE AMP SPEAKER LOAD' Box is designed to replace the Speaker and allows you to use your Amp with standard Stereo 'Headphones' only. It also offers a 'Line Out' signal for connection to a Slave Amp, Mixer or Recorder. There are independent 'Level' (Hi-Lo) switches to set the 'Headphone' and 'Line Out' Volume. If you wish to use your Amp as normal (with the Main Speaker active) and still have access to 'Headphones' and 'Line Out' - the Load Box will also allow this.

- Operation -

Your Amp Must have a 4, 8-or-16 Ohm Speaker Output Socket.

1. - Disconnect the Speaker from your Amp - Connect a Speaker Lead from your Amp Speaker Socket -to- the 'AMP OUTPUT' Socket on the Load Box (Or through a 'DI' Box).

2. - You can now use your Amp as normal, with NO Speaker connected, using 'Headphones' -or- 'Line Out' -or- Both (And through a 'DI' Box if Connected).

3. - If you want your main Speaker Active - Connect the Speaker to the 'THRU SPEAKER' Socket on the Load Box (And through a 'DI' Box if Connected). The Amp and Speaker will work as normal and you can still use the 'Headphone' and 'Line Out' Sockets.

 - Valve Amps Only - 50 Watts RMS Max - 

The Load Box will get warm with use as it is converting the Speaker energy into heat. Any Valve Amp rated between 1-to-50 Watts will work fine. The Load Box works with 'OPR' (Power Scaling) and all types of Speaker Attenuator, the Box MUST be matched to the Amps Output Impedance.

* * * Please request a 4, 8-or-16 Ohm Unit when Ordering * * *

As most 50 Watt Valve Amps will produce way in excess of their Power Rating, it is not advisable to use the Load Box with a 50 Watt Amp running 'FLAT-OUT'.

The Price is just £55 including Delivery (in the UK), if you want one, Please 'CONTACT' me.


RAT Dummy Load Box in use.


Clip of RAT Dummy Load used as a 'Line Out'.


Clip of a RAT Dummy Load used as a 'DI' Box (No Speaker).