Features:✓ 50 mm voice coil✓ Voice coil former made of anodized aluminium✓ 12 AWG push terminal✓ Polypropylene cone injected with mica✓ Cast basket with integrated venting✓ Optimized for sealed and vented enclosures

1 Ohms frequency range   25 - 250 Hz resonance frequency  Fs 45 Hz mechanical goodness Qms 1

The new PLUTO amplifiers are not only particularly small

In TWELVE DSP MK2*

and their dual-function EQ can tune any component speaker system for premium sound quality

ESX QM500.1 Helix Power Cap Features:✓ 50 mm voice coil✓ESX Quantum Series Never has digital amplifier power been more compact and affordable: With dimensions of just 190 x 35 x 102 mm, the ESX QUANTUM QM miniature powerhouses impress across the board. The QM amps offer state of the art technology in the smallest of spaces and are consistently well constructed. All QM amps are based on the slightly larger sibling models of the ESX QUANTUM QL series, only slightly more compact and much easier to install.