• Patented Quantum™ Technology
• Stoplist Library™
• Acoustic Portrait™ - Actual Sampled Acoustics
• Real Xpression™
• Reflections™ Package - Optional
• Stop-by-Stop & Note-by-Note Voicing
• Advanced MIDI Capabilities
• Voices Changeable Via CD ROM
• Air Regulator™

• Hand-crafted Square Overlays
• Keycheek Alternatives - Optional

• Individually Adjustable and Felted Keys
• Reed Switch Key Contacts - (or OST™ Optional)
• Ivora Naturals & Wood Sharps - Optional

• Pistons - User Reconfigurable
• Wood Drawknobs Shanks & Stop Tablets - Optional

"Allen's remarkable new
Quantum™ technology
is the perfect framework for
creating my Signature Series
specifications. Quantum
let me choose the voices I
wanted and gave me the control
to achieve distinctive sounds
and perfectly balanced ensembles."
- Diane Bish