A28 is the first product to integrate passive end-fire technology.

l   Only need one amplifier channel for low frequency directivity control

l   Patented Passive End Fire Technology hybrid shell design

l   Extremely accurate and dynamic low frequency reproduction

l   Double long stroke 18" neodymium cone driver

l   Robust birch plywood structure

l   Textured semi-matte black paint finish

application:

l   Noise-sensitive devices

l   Medium and large touring

l   High-end installations from large and medium-sized bars to live music venues

l   Low frequency extension of all A series speakers

Specification:

l   Frequency response ( -6 dB): 35 Hz-250 Hz

l   Horizontal coverage ( -6 dB): 150 degrees

l   Vertical coverage ( -6 dB): 150 degrees

l   Maximum sound pressure: 133/139 dB (free space)

l   Sensitivity, 1w/1m: 101 dB (free space)

l   Impedance: 6 ohms

l   Frequency division: 80 Hz-100 Hz active

l   Power processing: 1800 W (AES), 7200 W (peak)

l   Recommended HP filter: 33 Hz, 12 dB/octave

Unit composition:

l   Front: ( 1) ×  18" neodymium magnetic cone driver, 4" voice coil

l   Rear: ( 1) ×  18" neodymium magnetic cone driver, 3" voice coil

Cabinet:

l   Cabinet: birch plywood, black textured paint finish

l   Grille: cold rolled steel grille, black painted surface

l   Connector: ( 2) ×  NL4, +/-1: input, +/-2: link

l   Dimensions: 1200 mm  ×  520 mm  ×  800 mm ( 930 mm/wheel)

l   Weight: 75 kg