The Blackline H3T+ is a very high performance, all-horn, three-way system in a single, wide-bandwidth package. New drivers have been developed for improved performance in all bands. The Hybrid low frequency section comprises a horn-loaded 15 inch (380mm)/4 inch (100mm) voice coil driver that is reflex loaded to extend the LF output to below the natural horn cut-off point. The new LF driver features a water resistant cone and triple roll surround for increased excursion. The mid-horn of the H3T+ has a unique ‘phase-ball’ loading device which maintains the constant directivity characteristics of the horn at the upper end of its range. It is driven by a new 10 inch (250mm) midrange driver with an aluminium demodulating ring for improved high-mid clarity and reduced distortion when driven hard. The 70˚ x 40˚ HF section of the H3T+ features a neodymium 1 inch (25mm) exit compression driver with a Kapton diaphragm for high sensitivity and extended HF performance.

The internal mid/high crossover has an active/passive switch on the rear panel to select bi-amp or tri-amp operation. The H3T+ is configured in a trapezoidal birch ply cabinet and may be horizontally arrayed for wide coverage applications. Its twelve M10 inserts make a variety of mounting methods possible including horizontal or vertical mounting. The enclosure has fitted as standard; generous pocket handles on the ends and sides, rear castors and lid clips, for an optional lid. When driven in bi-amp mode, a Martin Audio M3+ Electronic Controller is available to provide H3T+ crossover and limiter facilities. A DX1.5 or equivalent controller is recommended for provision of crossover and limiter functions in tri-amp mode.

All-horn three-way system
Phase-ball’ loaded mid-driver
Hybrid LF section
Fitted with handles and castors