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Description
modulation effects pedals Astra Modulation MachineThree of History's Most Mind Expanding Modulators, Perfectly Captured in a Stompbox. Engineered and developed by the acclaimed team at Universal Audio, the UAFX Astra Modulation Machine boasts powerful dual processor architecture for the most sonically authentic classic Chorus, Vibrato, Flanger, and Tremolo effects ever available in a stompbox. From spacey studio flanger tones of the 1970s to gritty bucket brigade chorus and luscious opto tube
Three of History's Most Mind-Expanding Modulators, Perfectly Captured in a Stompbox.
Engineered and developed by the acclaimed team at Universal Audio, the UAFX Astra Modulation Machine boasts powerful dual-processor architecture for the most sonically authentic classic Chorus, Vibrato, Flanger, and Tremolo effects ever available in a stompbox. From spacey studio flanger tones of the 1970s to gritty bucket-brigade chorus and luscious opto tube tremolo, Astra Modulation Machine puts three iconic vintage effects at your feetin a beautifully-crafted pedal that's built to last decades.Three Timeless Modulation Effects
Chorus Brigade: Classic '70s analog bucket brigade chorus with additional Vibrato mode. Flanger/DBLR: Studio flanger/doubler tones modeling legendary rack effects units. Trem 65: Perfectly-emulated opto tube tremolo derived from iconic blackface amps of the mid-1960s. Bonus Effects: Free Phaser X90 and Dharma Trem 61, downloadable at registration.Astra Modulation Machine Key Features
â— Flagship modulation pedal with powerful dual-processor UAFX engine â— Three timeless modulation effects, with secondary modes and settings â— Simple Live/Preset modes for instant recall of your favorite sound â— Additional downloadable effects by the world-renowned UAD algorithm team â— True or buffered bypass,* silent switching â— Classic UA analog design and craftsmanship, built to last decadesSpecifications
â— Power requirements: Isolated 9VDC, center- negative, 400mA minimum** â— Inputs: 2 x ¼" TS (input 2 for stereo connections) â— Outputs: 2 x ¼" TS (output 2 for stereo connections) â—USB Type-C for updates via computerShipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 236 reviews
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Product Reviews
★★★★★ 4
Large is a little big for Bostons
Color: Dogwood (Brown), Size: Large (Pack of 1)
Seems to be durable for 2 VERY agressive chewer Boston Terriers. Cricket and Alice are shockingly good at chewing - grateful they pick to do so with thier toys.
Trial vs other name brand competitor.
PetStages' is a little larger so harder to bite on fir small dogs, but seems to be equally durable. While PetStages proudly states it has real wood fiber and scent (whoch I thought would win)... they prefered the other. Both dogs love to chew on real sticks.
But, when the bossy one indicated she was taking over the stick the other dog had, they exchanged, and kept chewing, over and over, back and forth. I mean to say, whatever the prefered stick was at first didnt seem to matter later.
These super hard chew toys do make me nervous. One dog broke a tooth last summer on a different brand toy, a very expensive extraction bill, and poor pup's terrible discomfort... but the other did not and has amazing white teeth, all around.... so.
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Reviewed in the United States on September 26, 2025
★★★★★ 5
Great for teething puppies
Color: Dogwood (Brown), Size: Small (Pack of 1)
My pup absolutely loves this. Can keep him occupied for up to 45 min at a time. Pretty durable, too.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
The best chew ever for a strong chewer
Color: Dogwood (Brown), Size: Large (Pack of 1)
We have a 77lb goldendoodle who loves these. We’re lucky because he doesn’t chew on anything other than his toys, but when he starts on this…he really goes at it. It’s healthy, (not synthetic), doesn’t break apart, (no pieces to worry about him swallowing), it just perfect for him. The noise may get on your nerves but it’s a small price to pay to keep him from chewing on your furniture, shoes, or anything else a mischievous dog can find.
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Reviewed in the United States on May 30, 2026
★★★★★ 3
Little pieces break off
Color: Dogwood (Brown), Size: Large (Pack of 1)
My dog is obsessed with this. It does last a long time even given her strong chewing capabilities. I wish it was a little bigger. The main reason I rated it so low is when my dog is chewing on this it breaks off a little plastic peice and sometimes it hits the back of her throat making her cough so you have to supervise with this.
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Reviewed in the United States on February 1, 2026
★★★★★ 5
Great for aggressive chewers
Color: Dogwood (Brown), Size: Large (Pack of 1)
My dog is an aggressive chewer so they are great for her. I would love to have one a bit thinner so it could fit in a holder so it is easier for her to hold while eating. This keeps her busy and is long lasting. I have purchased these multiple times.
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Reviewed in the United States on April 5, 2026