Postive Grid Spark 40 modeling amp with upgraded speakers and output jacks for external speakers. 

The speakers in the Spark 40 amp were replaced with Infinity REF-4032CFX two-way speakers to provide improved sound range and tone.

Two jacks were added to the back of the amplifier to allow for the connection of external speaker cabinets (4 ohms). 

The internal speaker is disconnected when the external jack is used.

It has great sound as a small, portable practice amp and/or Bluetooth music player, but can also rock with good tone when connected to external speaker cabinets. 

The original Spark speakers are included (in the Infinity box) for anyone who might wish to reinstall them. 

External speakers are not included. There is one small tear on the top right corner of the amp. It is highlighted in the photos.

Also includes the sleek wireless foot pedal controller (in excellent condition). Thanks!