Feature(may vary by option.)

●The amplifier requires a separate 2.1 ch amplifier that can drive passive subwoofer. Recommended amplifiers include Fosi Audio BT30D (Search on Amazon for B07K7NJ4QN), Nobusound M3 (Search on Amazon "B088TCCZQK" )
●This is a subwoofer kit to add a low frequency to a small speaker. It is compatible with the full range of 3.1 inches (8 cm) and 3.9 inches (10 cm) class, such as the Z601-Modena
●When used in combination with small full-range speakers and PC speakers, it can extend the low range up to 50Hz
●Kit requires assembly Accessories include precision-cut 0.6 inch (15 mm) thick MDF, 5.1 inch (13 cm) woofers, Z-Livorno, terminals, speaker cables, internal wiring, screws, sound absorption, etc
●Size (W x D x H): 8.9 x 9.3 x 7.7 inches (225 x 235 x 195 mm); Height (not including protrusions). Weight: Approx. 7.6 lbs (3.6 kg)

[13cm x 2 (29L)]

[13cm x 1 (6L)]

Description

This product can be assembled by yourself with glue, solder, etc. This is a passive subwoofer kit made by MDF. This is a passive type that does not have a network, so a separate 2.1 ch amplifier is required.