Roland MC-505 (1998)

Roland's second groovebox answered the MC-303's critics with 64 voices, 24 parts, and a front panel covered in knobs that actually do something.

Overview

The MC-505 landed in 1998 as Roland's follow-up to the MC-303. Roland positioned it as a considerably more advanced machine. The 303 had been a stripped-down sketchpad. The 505 arrived as what Roland's own documentation calls an all-in-one electronic music production tool - a desktop unit with a sequencer, drum machine, synth engine, and real-time control surface in one box. In the UK it sold for £949, roughly double the £499 Roland was asking for the MC-303 sitting directly beneath it in dealer ads.

The owner's manual lists the specs, and they point at multitrack dance production: 64-voice polyphony, 24-part multitimbrality split between 8 main parts and 16 RPS parts, and 512 preset plus 256 user sounds. The synth engine shares its core with Roland's JV-series instruments. That means the 505 inherited a substantial sample-based architecture, not the cut-down engine that had frustrated 303 owners. A resonant filter, onboard effects, and a pattern-based sequencer round out the package.

What separates the 505 from most late-nineties grooveboxes is the front panel. Sound on Sound (April 1998, p.161) noted that the Function button behaves like a shift key for every front-panel knob, effectively providing a whole extra panel's worth of controls. Most knobs and switches carry several functions, and a three-colour labelling system shows what does what in any given mode. The trade is that it's less clear at first and deeper once you learn the layout.

Key Features

64-Voice Polyphony with 24-Part Multitimbrality

Sixty-four voices across 24 parts - 8 main and 16 RPS - is useful territory for full arrangements. Build a drum pattern, layer a bassline, stack chords, and still have voices left over for the next section. The 24-part architecture lets the machine work as a complete production hub rather than a sketch tool. The JV-series core gives it a sound palette that extends well beyond the techno niche Roland aimed it at.

512 Preset and 256 User Sounds

The factory sound set runs 512 presets, with 256 user slots for your own patches. That's a serious library for a desktop box, and it comes from the JV-derived engine underneath. The sounds lean toward the dance and electronic genres the 505 was marketed into, but the architecture is general-purpose enough that owners have long used it for material well outside the four-on-the-floor template.

Real-Time Modify Knobs and the Function Shift Key

This is the feature that defined the 505's reputation. The Real-time Modify section puts filter cutoff, resonance, envelope controls, and other parameters directly under your fingers. Sound on Sound (October 1998, p.200) credited those knobs with going some way toward satisfying the need for physical control. That was a pointed remark in an era when most dance boxes offered little more than a data dial and a shift button. The Function key doubles the panel's effective control count, and the three-colour labelling keeps you oriented as you switch between modes.

Multiple Audio Outputs and MIDI I/O

The rear panel has MIX L (mono) and R, DIRECT 1 L (mono) and R, and DIRECT 2 L (mono) and R, plus a headphone jack. That's six physical outputs, enough to route individual parts to separate mixer channels for external processing instead of committing everything to a stereo pair. MIDI in and out are there for the rest of a setup, though the manual documents no MIDI thru.

Historical Context

Roland released the MC-303 in 1996 as the first groovebox in the series, and the 505 arrived two years later as its successor. Sound on Sound (June 2001) put it plainly: Roland followed their first MC303 Groovebox with the well-specified MC505. The 505 was aimed squarely at the techno and dance market. The October 1998 Sound on Sound review (p.200) framed it against the vogue of all-arpeggiating silver dance boxes that had proliferated in the preceding years.

The lineage continued with the JX-305, which repackaged the 505's dance-oriented sound set into a traditional keyboard format. Contemporary comparisons in the press placed the 505 alongside the MC-307, Yamaha's RM1x, and Korg's EMX-1 - all machines chasing the same all-in-one dance production concept. A UK dealer ad in Sound on Sound (November 1998, p.99) billed the MC-505 as "the ultimate groovebox" at £949, with the MC-303 listed at £499 directly below it. A year later, EQ (June 1999, p.38) was still running MC-505 tech tips covering part thru routing and system parameter initialization.

Collectibility & Value

Prices have settled well below the original £949. Equipboard tracks a best-price benchmark around $404.49, and working units have been listed on eBay at $603. The 505 sits in an awkward spot: desirable enough to hold value, but not yet a cult classic commanding Jupiter-level money.

Two known issues are worth checking before buying. Owners report an annoying bug referred to as the "sustain bug" - search for it and you'll find demonstrations of the behavior. The LCD is the other concern. Two separate eBay listings offer replacement and alternative screens for the MC-505, which suggests the original display is a common failure point. A $33 to $37 replacement panel is cheap, but any unit you're considering should have its screen inspected carefully. Listings advertising a "brand new screen" have become common enough to be a selling point.

Support infrastructure is solid. Roland has made manuals for most of their products available as free PDF downloads, and a free MC-505 editor circulates online. Third-party sound packs exist too — one developer has released an 808 kit sampled from the 505. For a machine from 1998, that's a healthy ecosystem.