Introducing the Altair IV. Designed to offer uncompromised versatility, this dual channel overdrive can offer up natural sounding tones from boost to robust lead tones. The left channel is best described as lying somewhere between a GS 124 and a GS 167. The overall feel and gain structure was optimized for stand-alone and stacked use. The right channel is a low-to-moderate gain OD that was designed with Carton and Ford type low gain tones in mind.