"In the 109, Aphex have built a truly musical-sounding equalizer that combines flexibility with simplicity of operation. It sounds silky smooth on vocals, yet you can add enough top end boost to make things really sizzle if you need to, and bass guitars can be given extra depth without them sounding flabby or uncontrolled. Though you can buy better sounding equalizers, you have to pay a lot more than this for them, and in this price range, I can't think of anything to rival the 109. Unlike most low voltage valve circuits, the Aphex hybrid approach doesn't compromise the transient response or sense of top end 'air', yet it's as quiet as a quality solid-state design. If you're in the market for an outboard EQ, this is one unit you really have to try," — Sound on Sound
