Introduction
 
Welcome!
 
1-1
 
Chapter 1
Introduction
 
Welcome!
Congratulations, and thanks for purchasing a Kurzweil/Young Chang K2661 instrument. 
The K2661 is packed with great acoustic, electric, and synth sounds—combined with some of 
the most advanced synthesis features available, which you can use to create almost any sound 
imaginable. The K2661 incorporates most of the features of the K2600, and provides several new 
features as well.
This manual and the accompanying 
Musician’s Reference
 will get you started with your new 
instrument. You’ll definitely want to refer to the manuals as you become an advanced user, too.
 
Overview of the K2661
The K2661 has been designed to be a versatile instrument both for performance, and for multi-
timbral sequencing and recording. Its Variable Architecture Synthesis Technology lets you build 
sounds from realistic instrumental samples and sampled synth waveforms—then modify the 
nature of those sounds through a wide variety of digital signal-processing (DSP) functions. The 
K2661 also generates its own synth waveforms, which can be combined with the samples or 
used on their own. Onboard sound ROM includes the Orchestral and Contemporary sound 
blocks, as well as a fine set of General MIDI (GM) sounds. You can add one or both of the two 
available option ROMs (Stereo Dynamic Piano and Vintage Electric Pianos), and you can load 
samples from disk into sample RAM.
Before we get into explaining Variable Architecture Synthesis, here are a few of the features that 
by themselves make the K2661 an impressive stage and studio machine. It’s fully multi-
timbral—different programs can be played on each MIDI channel. It’s 48-note polyphonic, for a 
full sound no matter how many chords you play. There’s an on-board digital effects processor, 
providing up to five simultaneous effects, including real-time effects control, internally or via 
MIDI.
In addition to the standard stereo audio output pair, there are four balanced analog outputs and 
eight channel digital output.