#AUDIO true to the source
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Introducing the latest version of the S4 amplifier, the S4b. Our most versatile amp just underwent an extensive circuit upgrade to make our ideal of True To The Source reproduction truly accessible. This is the best sounding S Series amp ever. We have scrutinized the topology and parts to deliver the cleanest signal path we could while our focus on efficiency has allowed us to deliver the S4b at an affordable price.

This product is an archived / legacy product and is no longer in production

Bridged / Bridgeable360W x 1ch + 720W x 1ch
ChannelsCan be used as 2, 3 or 4
Cont Power at 2 Ohm180W x 2ch + 360W x 2ch
Cont Power at 4 Ohm120W x 2ch + 240W x 2ch
Dimensions (US)17.88" x 9.13" x 2.5"
Dimensions (Metric)45.42 x 23.19 x 6.35 cm
Shipping Weight16 lbs / 7.26 kg
Wire Gauge (Power and Ground)4 AWG
Wire Gauge (Speaker Output)10 AWG