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Model 312 3 way diffaxial

25 w  / 8-16 ohm

Includes original University Presence control

Contains extra heavy all-Alnico 5 Gold dot magnet




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Model 6201 Dual Range Coaxial

25 w  / 8-16 ohm

Includes original University Presence control





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Model 6303 3 Way Diffaxial Alnico Speaker

30 w  / 8-16 ohm

Includes original University Presence control


From the 1957 University catalog:  A true dual range coaxial system.
High efficency, wide angle. Contains super sensitive all-Alnico Gold
dot magnet