The front-facing bass-reflex port enhances bass reproduction and reduces airflow noise even at high volume levels

ESX also offers a wide range of loudspeakers

7 mmMT: -TT: - Dimensions crossover

✓ Inner diameter: 16cm

✓ 50mm² cross section

ESX QM500.4 Auto-Connect The front-facing bass-reflex port enhancesESX Quantum Serie 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.