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Universal Audio UAFX Astra Modulation Machine Pedal with Chorus, Flanger and Tremolo

Universal Audio UAFX Astra Modulation Machine Pedal with Chorus, Flanger and Tremolo

The Universal Audio UAFX Astra Modulation Machine is a professional-grade stereo effects pedal designed for guitarists and synthesizer players seeking studio-quality modulation effects in a pedalboard-friendly format. It represents Universal Audio's first venture into the stompbox market, bringing their renowned audio processing technology to a tactile, plug-and-play unit with distinctive retro styling. The pedal is built around a powerful dual-processor architecture that delivers multiple iconic, vintage-inspired sounds with exceptional detail and authenticity. The Astra features three core modulation effects: 'Chorus Brigade' emulates classic 1970s analog bucket-brigade chorus and includes a secondary vibrato mode; 'Flanger DBLR' models legendary studio rack flanger and doubler tones; and 'Trem 65' provides a perfectly-emulated opto tube tremolo derived from iconic mid-1960s blackface amplifiers. The unit offers both true and buffered bypass operation, selectable via the free UAFX Control mobile app, along with silent switching and analog dry-through circuitry for maintaining signal integrity. Additional features include stereo/dual mono operation, a tap tempo footswitch, and an 'Effect Mode' toggle for accessing variations of each effect. Registration unlocks two bonus downloadable effects: 'Phaser X90' and 'Dharma Trem 61'. This pedal is ideally suited for both professional musicians and dedicated home studio enthusiasts who require versatile, high-fidelity modulation effects. Its intuitive control panel allows for precise sound sculpting, while 'Live' and 'Preset' modes facilitate instant recall of favourite settings. The robust metal construction ensures durability for regular live use, and the recent UAFX 2.0 update adds USB-MIDI support for 128 recallable presets, BPM clock sync, and integration into programmable MIDI rigs. It operates on an isolated 9VDC centre-negative power supply, making it a practical and powerful centrepiece for any modern pedalboard.
Compare prices from £310.50 to £349.00
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5 / 5(4 reviews)
0819937002861
2 retailers
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£310.50 (incl. £11.50 delivery)
In Stock Next day delivery for orders before 7pm Mon-Fri on GB Mainland, 2 days for other areas Click & collect Pay later: Yes
Retailer information

We checked this product from this store on 13 Feb 2026 at 17:21.

Delivery

Cost
£11.50
Time
Next day delivery for orders before 7pm Mon-Fri on GB Mainland, 2 days for other areas
Restrictions
Next day delivery not available for Ireland and Scottish Highlands
delivery charges and times vary by region.
Couriers
DPD, UPS

Returns & refunds

Methods
Via online request through account or contact form.
Policy
Returns require an RMA number
request through your online account or by contacting the returns department.

Collection & in-store

Click & collect
Available
Ready in
Ready for collection next day by 12 noon for DPD Pickup.
Locations
DPD Pickup shops (e.g., Sainsburys, Halfords, Matalan, Doddle stations, pharmacies) and UPS Access Points.
Fee
£4.99

Payment & finance

Methods
PayPal
Interest-free
4 months on purchases over £99
Min spend
£99.00
BNPL
UK residents only, subject to credit approval, for purchases between £30 and £2000.
Pay later
PayPal Credit, PayPal Pay in 3

Support

Contact
Phone: 01204 474747, Email: [email protected], Address: Scan Computers International Ltd, Bolton.
Self-service
Track orders via DPD app, manage returns through online account.

Other

Rating
4.8/5 from Trustpilot based on over 42,000 reviews
Trust
Award-winning delivery service, NVIDIA Elite Partner
Open retailer
Andertons Product reviews 5.0 (4)
£349.00 *
In Stock Free delivery over £199.00 Click & collect Pay later: Yes
Retailer information

We checked this product from this store on 19 Feb 2026 at 19:25.

Delivery

Free over
£199.00
Time
Next day for orders over £199
Couriers
DPD

Collection & in-store

Click & collect
Available
Availability
In store & online

Payment & finance

Interest-free
9, 12, 18, 24, 36, or 48 months at 0% APR, subject to product and order value
Min spend
£300.00
BNPL
Available through PayPal Pay in 3, subject to PayPal approval
Pay later
PayPal Pay in 3, V12 Finance

Other

Trust
Feefo Platinum Trusted Service 5 Years in a Row, NAMM 2026 Retail Top 100 Finalist, NAMM 2025 Top 100 Dealer, NAMM 2020 Customer's Choice, NAMM Dealer Of The Year 2018, YouTube Gold Play Button Award
Loyalty
Loyalty points with every order
Open retailer

* Price may not include delivery when not stated by the retailer. Prices may have changed since we last checked. We are not liable for any errors or omissions; please confirm price, availability and terms with the retailer before purchasing.

Page last updated: 19 Feb 2026, 19:25