The ST4 is designed for applications requiring greater dynamics combined with full frequency response. The slender tower features two separate chambers; the top portion, which replicates the highly acclaimed Super Audio SB3 bookshelf system, and the lower portion, which contains a vented, built-in 8" subwoofer. This unique design approach provides the sonic finesse of our finest 2-way bookshelf with the added dynamics, extended bass and high output more typical of 3-way systems.

The ST4 is bi-ampable to permit tuning low frequency response in difficult room placements. Available in gloss black only, stabliziers included. Recommended NHT center channel SC2.


System Type 3-way system, upper chamber-acoustic suspension, subwoofer chamber vented
Drivers 1' Fluid cooled neodymium magnet structure tweeter with NHT's proprietary aluminum heat sink. Mid-Woofer 6.5" polypropylene, high excursion. Woofer 8" polypropylene, long throw.
Magnetically Shielded Yes, except 8" woofer.
Frequency Response 31Hz- 22kHz +/- 3dB
Crossover Frequency 2.6kHz, 135Hz
Sensitivity 86dB (2.83V at 1M)
Impedance 8 ohms nominal
Inputs 5-way binding posts
Recommended Amplifier Power Minimum 15 watts/ch Maximum 200 watts/ch
Dimensions 38"H x 8"W x 12"D
Weight 47.5 lbs. each
Finish Black high gloss piano lacquer