Altec Model 15
1972 - 1980s
The Altec Model 15 was the larger sibling to the Model 14, offering even greater bass extension and output capability. This substantial 3-way floorstanding speaker represented Altec's commitment to high-efficiency, full-range home audio systems.
Specifications
| Type | 3-way, bass-reflex floorstanding loudspeaker |
|---|---|
| Low Frequency Driver | 15" (380mm) high-efficiency cone woofer |
| Midrange Driver | 6" cone midrange |
| High Frequency Driver | 3" compression driver on horn |
| Crossover Frequencies | 700 Hz, 5,500 Hz |
| Nominal Impedance | 8 Ω |
| Power Handling | 75W continuous |
| Sensitivity | 99 dB/W/m |
| Frequency Response | 28 Hz - 18 kHz |
| Dimensions | 42" H x 22" W x 16" D (approximate) |
| Weight | Approximately 90 lbs per speaker |
Design Philosophy
The Model 15 embodied Altec's approach to high-fidelity: high efficiency, wide dynamic range, and minimal compression. Unlike typical hi-fi speakers of the era that sacrificed efficiency for flat measured response, the Model 15 prioritized the effortless reproduction of music that only high-efficiency designs can provide.
Key Features
- Extended Bass: 28 Hz extension for full orchestral and cinematic impact
- High Sensitivity: 99 dB allows use with low-powered tube amplifiers
- Horn-Loaded HF: Compression driver on horn for dynamics and detail
- Quality Construction: Heavy cabinet with internal bracing
Intended Use
- Large home listening rooms
- High-fidelity systems with tube amplifiers
- Professional monitoring (in some installations)
- Home theater systems (even before "home theater" was common)
Comparison to Model 14
| Feature | Model 15 | Model 14 |
|---|---|---|
| Bass Extension | 28 Hz | 30 Hz |
| Sensitivity | 99 dB | 98 dB |
| Power Handling | 75W | 60W |
| Size | Larger | More compact |
Legacy
The Model 15 represents Altec at its peak in the home audio market. These speakers are now rare and highly valued by collectors who appreciate their combination of classic Altec sound and substantial build quality. A properly restored pair of Model 15s can compete with modern speakers costing many times more.