The IVA-A is a very compact, lightweight enclosure housing two 4" Low Mid woofers and one Pro Ribbon driver. The IVA-B houses 2 8" woofers and a rear mounted power amplifier. The advance component design and the density provide an extremely high power to weight ratio. The IVA's amplification is rear mounted on the IVA-B and it has ample amount of power for 4 IVA-A cabi-nets and 1 IVA-B cabinet with frequency adjustments and volume control available through DSP processing technology.