The Palmer Speaker Simulator PDI 03 with integrated dummy load is a modern classic. In addition to the original model, we offer the contemporary version PGA 04 and the active Stereo Speaker Simulator PDI05 reissue which is perfectly complemented by our 2 x 8 Ohm Dual Load Box. The loudspeaker level DI boxes PDI 09 and PDI 03 JB Joe Bonamassa Signature Model also feature the acclaimed Palmer speaker simulation filtering. Doubling as a dummy load, the Palmer Power Attenuator is available in 8 and 16 Ohm versions.