# Guitar effect pedal Universal Audio UAFX Astra Modulation Machine — stereo modulation effects, UAFX series

**URL:** https://aio.lv/en/product--universal-audio-ua-gpm-astra--5654341
**Data updated:** 2026-03-12 16:26 (EET)
**Category:** Sound Cards
**Manufacturer:** universal audio
**Manufacturer code:** UA GPM-ASTRA
**EAN:** 819937002861
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 405.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 335.12 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--universal-audio-ua-gpm-astra--5654341

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.89 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Universal Audio UAFX Astra Modulation Machine is a guitar effects unit providing stereo modulation effects. Part of the UAFX series, it delivers a range of modulation sounds for guitars in stereo setups. Designed for live performance and studio use, it offers versatile modulation options to shape chorus, flanger, vibrato and related textures, improving spatial depth and tonal variety for players.

## Long description

The Universal Audio UAFX Astra Modulation Machine is a stereo guitar effects pedal from the UAFX series designed to produce a broad palette of modulation sounds. It combines classic and modern modulation types—chorus, flanger, vibrato and multimode textures—delivered in stereo to enhance spatial depth and movement in guitar tones. Built for both stage and studio use, the Astra offers hands-on controls and preset flexibility to adapt modulation character to different instruments and musical styles.
Advantages
The Astra Modulation Machine provides stereo output and a selection of carefully modeled modulation algorithms that retain musical clarity while adding width and motion. Its intuitive control layout allows quick adjustment of rate, depth and mix, and dedicated mode selection simplifies switching between chorus, flanger and vibrato textures. The pedal’s construction supports reliable live performance while providing studio-quality signal paths for recording and tracking.
Suitable for
Electric and electro-acoustic guitar players seeking stereo modulation effects
Live performers who need immediate, pedalboard-friendly modulation options
Recording engineers and producers looking for versatile stereo modulation for tracking and mixing
Musicians wanting to add chorus, flanger or vibrato textures to clean and overdriven tones
Key specifications
Stereo modulation processing for left and right outputs
Multiple modulation algorithms including chorus, flanger and vibrato modes
Hands-on controls for rate, depth and mix to shape modulation intensity
Preset and mode selection for quick access to different modulation characters
Durable metal enclosure suitable for pedalboard use
Compatibility with standard 9V DC pedal power supplies
How to use
Connect your guitar to the input and route the left and right outputs to a stereo amplifier, audio interface or mixer. Start with conservative rate and depth settings, then adjust the mix control to balance dry and wet signals for the desired spatial effect. Select the appropriate mode to choose chorus, flanger or vibrato textures and fine-tune parameters while playing to match the instrument and style. For stereo setups, experiment with panning and amp placement to maximize the pedal’s stereo image.
Usage recommendations
For live situations, place the Astra in the effects loop or front of amp depending on whether you want the modulation to affect pre- or post-drive tones; when recording, try both direct stereo outputs and re-amping to find the optimal stereo width and tonal placement. Use moderate depth and slow rates for subtle shimmer, and increase depth or rate for pronounced, rhythmic modulation.

## FAQ

### How much does the Guitar effect Universal Audio UAFX Astra Modulation Machine cost, and is it available for purchase?

The price is 405.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 06.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Guitar effect Universal Audio UAFX Astra Modulation Machine be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All universal audio products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized universal audio service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/5654341/51851422_large.webp