Source Audio SA 271 ZIO Boost

Technical Data

• Manufactured by Source Audio
• Released in 2022
• Average price : $248
• Preamp / Boost
• 4 Selectable preamp circuits: JFET / LOW-CUT / STUDIO / E-PLEX
• JFET for transparent, flat frequency curve
• LOW-CUT attenuates basses without affecting mids and highs
• STUDIO simulates 'Pultec Trick' EQ
• E-PLEX was inspired by the preamps of old tape delay units
• Output control with up to +20 dB signal gain
• High-quality components and Burr Brown JFET operational amplifier
• 3-Way tone toggle switch with cable capacitance voicing (Bright / Medium / Dark)
• 2-Way footswitch action toggle (with always-on mute option)
• True Bypass
• Output control
• Circuit Rotary switch
• Tone toggle switch
• Footswitch Action toggle switch
• Bypass footswitch
• Status LED
• Housing made of brushed / anodised aluminium
• Input: 6.3 mm jack
• Output: 6.3 mm jack
• Tuner / line output: 6.3 mm jack plug
• Mains adapter connection: Hollow female plug 5.5 x 2.1 mm, negative pole inside
• Power supply via 9 V DC mains adapter (not included)
• Power consumption: 25 mA
• Dimensions (L x W x H): 105 x 60 x 56 mm