Taking you deep down the rabbit hole of classic analogue modulation, UAFX Astra Modulation Machine serves up the most sonically authentic bucket-brigade chorus/vibrato, studio flanger/doubler, and tube-driven tremolo effects ever placed into a single stompbox.

Built upon Universal Audio's powerful new UAFX dual-engine processing and unmatched levels of quirky analogue realism, Astra delivers richly addictive vintage modulation, beautifully crafted to inspire you for decades.

Features:

• Texture your tones with iconic Japanese bucket-brigade chorus/vibrato, circa 1976
• Explore the outer limits with legendary rackmount bucket‑brigade studio flanging/doubling
• Get all the heavenly goodness of 1960's tube-driven tremolo, direct from your favorite American guitar amps
• Quickly access sounds with Live/Preset modes, and play with silent switching, preamp coloration, and true/buffered bypass
• Download additional Phaser X90 and Dharma Trem 61 effects at product registration
• Build your pedalboard around timeless UA design and robust craftsmanship, built to last decades

Specifications:

• Power requirements: Isolated 9VDC, center-negative, 400mA minimum (power supply not included)
• Inputs: 2 x ¼" unbalanced TS (input 2 for stereo connections)
• Outputs: 2 x ¼" unbalanced TS (output 2 for stereo connections)
• Bypass Modes: True bypass via mechanical relays or buffered bypass (switchable within UAFX Control app)
• Input Impedance: 500 Kilohms (Mono In), 1 Megohms (Stereo In)
• Output Impedance: 500 Ohms
• Maximum Input Level: 12.2 dBu
• Maximum Output Level: 12.1 dBu
• Frequency Response: 20 Hz to 20 kHz, ±3 dB
• USB: Type-C (For registration and firmware updates via computer)
• Wireless Technology: Bluetooth v5
• Transmitted Frequency Range: 2.400 GHz – 2.4835 GHz
• Maximum Output Power: +4.35 dBm
• Dimensions: 3.62" (W) x 5.55" (D) x 2.56" (H) / 9.2cm (W) x 14.1cm (D) x 6.5cm (H) (with knobs and protrusions)
• Weight: 0.567 kg / 1.24 lbs