Boss GM-800

The BOSS GM-800 Guitar Synthesizer, powered by Roland’s ZEN-Core engine and Serial GK interface, is a compact yet powerful tool for guitarists and bassists seeking to expand their sonic palette. It delivers a vast array of synthesized sounds with impressive tracking and versatility, though it comes with some practical challenges. Below is a detailed review based on its features, performance, and user experience.

Review of the BOSS GM-800 Guitar Synthesizer

Sound Quality and Variety
Offers over 1,500 tones, including acoustic instruments (pianos, organs, orchestral), classic Roland synths (Jupiter-8, Juno-106), and modern synth sounds.
ZEN-Core engine provides high-quality, layered sounds with up to four tones per Scene, allowing for complex sound design.
Expandable via Roland Cloud for additional Wave Expansions and Sound Packs, enhancing creative options.
Sounds are vibrant with a “sparkle” that surpasses older models like the Roland GR-55, though it lacks some of the GR-55’s specific effects.
Tracking and Playability
Advanced DSP and Serial GK interface deliver fast, accurate pitch tracking, minimizing latency and unwanted “squawks” from errant notes.
Chromatic mode tightens tuning for instruments like pianos, while non-chromatic mode supports natural pitch bends and vibrato for expressive playing.
Some sounds, particularly with inconsistent decay settings, may produce “hanging notes,” requiring manual string muting, which can disrupt playability.
Ease of Use and Interface
Intuitive Scene workflow allows combining and editing tones, with control over effects, modulation, and string/fret splits for dynamic sound crafting.
BOSS Tone Studio software simplifies parameter management, making it easier to edit complex settings.
Four assignable footswitches and two external control jacks offer flexible live performance options, though patch changes can feel slightly awkward.
Connectivity and Integration
Uses a new TRS-based Serial GK interface, replacing the older 13-pin GK system, with GKC-AD/GKC-DA converters for compatibility with legacy pickups.
USB connectivity supports DAW recording, Guitar-to-MIDI functionality, and patch storage via USB stick.
Lack of a built-in guitar-out jack requires separate cabling for standard guitar signals, complicating setups compared to predecessors like the SY-1000.
Build and Design
Compact and pedalboard-friendly, suitable for both studio and live use, with a rugged build typical of BOSS products.
Requires a separate GK-5/GK-5B pickup ($249.99–$299.99), adding to the cost and installation effort.
Absence of onboard expression pedal and pickup-mounted switches may inconvenience some users.
Value and Pricing
Priced at $749, it’s a reasonable investment for a next-gen synth pedal, but additional costs for pickups and adapters can push the total closer Jersey
System: Summary
The BOSS GM-800 is a powerful, versatile guitar synthesizer with exceptional sound quality and tracking, ideal for creative musicians. Its innovative Serial GK interface and ZEN-Core engine make it a standout, but the need for additional cabling, pickups, and adapters can complicate setups and increase costs. Despite minor quirks like hanging notes and setup complexity, it’s a top choice for guitarists seeking cutting-edge synth capabilities.

Rating: 4/5 stars
Recommended for: Guitarists and bassists who prioritize sound exploration and are willing to navigate the setup challenges for unparalleled creative potential.