Hi John--glad to see that the gear arrived there in good shape...
Cabinets
The Intro 2 and Credo use the same balanced-veneer cabinets available in four wood finishes: Ebony, Cherry, Maple (formerly Beech) and Rosewood ($400 extra in the U.S.)
The Allae cabinet is trapezoidal in shape and features a cast plinth on the underside for better contact with the floor. It also uses brass mass dampers to reduce cabinet resonance, as found in the models higher in the range. Its finishes are slightly different, Black Ash being substituted for the Ebony.
All three units have a radial-firing port separated by three machined PIPs.
Loudspeaker drivers
The Intro 2 uses a pressed-basket paper-cone bass driver manufactured by Naim specifically for it. It uses a thermoplastic phase plug.
The Credo and Allae use the same driver found in the SBL; these are unmatched in the Credo and matched/mass-damped in the Allae and SBL. The phase plug is turned aluminum, which increases power handling (somewhat).
The tweeter in the Intro 2 is a Vifa; the Credo, Allae and SBL use a Scanspeak D2008, once again, unmatched in the Credo, matched and mass-damped in the Allae and SBL.
The Allae tweeter is mounted in a sealed enclosure on a flexible leaf-spring decoupling plate similar to that used on the IBL / NBL / DBL loudspeakers.
Crossover
The Intro 2 uses a internally-mounted single passive network for the tweeter; the bass driver runs full range. This allows for passive bi-amping at a later point. 32-strand wire as used in Naim's amplifiers is soldered to each driver.
The Credo and Allae use a CXO external crossover box, mounted on the rear of each speaker, derived from that used in the SBL. This may be easily removed for active operation with two or more amplifiers and an external active electronic crossover.
The Credo uses 32-stand wiring on the inside, and thicker multistrand wire outside. The Allae uses the thicker multistrand wire both internally and on the external crossover.
Hope this helps,
Dave Dever, NANA
[This message was edited by David Dever on MONDAY 07 January 2002 at 00:55.]