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A synth, short for synthesiser, is an electronic instrument used to create and shape sound using oscillators, filters and modulation. Synths can produce everything from classic analogue-style tones to complex, evolving textures used across many styles of music. If you enjoy exploring sound design and creating unique voices rather than simply reproducing traditional instruments, synths offer a deeply creative and expressive way to make music.
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Boutique is specialist equipment produced in smaller quantities with a strong focus on design, sound quality, and character. Boutique instruments are often built by independent makers or small teams, emphasising originality, hands-on control, and distinctive sound engines rather than mass-market production.
A filter is a sound-shaping component that removes or emphasises specific frequency ranges. Filters are used to sculpt tone, add movement, and control brightness or depth, playing a central role in shaping raw sound into expressive and musical results.
Synth for Sale has over 1000 used synths and gear like that for sale. We bring these products to you via our trusted partners, retailers and direct with independent sellers in the UK.