S-4 Debonaire 15
| Brand | University |
| Manufacturer | University Loudspeakers Incorporated |
| Series | Decor-Coustic |
| Function | Speaker |
| Produced | 1958 |
| Country | United States |
| Form Factor | Floorstanding |
| Signal Path | Passive Hardware |
| Dimensions | 69.6 × 64.5 × 40.6 cm (W × H × D) |
| Treble | 5.8"x7.4" Reciprocating-Flare Horn (University H-600, University T-50) |
| Midrange/Bass | 15" Paper Cone (University Diffusicone-15) |
| Impedance (Nominal) | 8Ω |
| Crossover Frequency | 700Hz |
| Enclosure Type | Bass Reflex (University EN-1215) |
| Enclosure Construction | 0.75" Birch Plywood |
| Finish | Mahogany, Blond, Walnut |
| MSRP (1958, Mahogany) | $197.50 |
| MSRP (1958, Blond) | $200.50 |
| MSRP (1958, Walnut) | $200.50 |