| Model ID | IRS Gamma |
| Form Factor | Floorstanding |
| Signal Path | Analog Hardware |
| Frequency Response | 15Hz-45kHz ±2 dB |
| Supertweeter | SEMIT-k (PN 902-3465) |
| Tweeter (Front) | EMIT-k* (PN 902-3721) |
| Tweeter (Rear) | EMIT-k* (PN 902-3721) |
| Midrange | EMIM** Rev. C (PN 902-0012C) |
| Midbass | L-EMIM (PN 902-3431) |
| Woofer | 12" IMG Cone (x2) (PN 902-3054) |
| Sensitivity | 87dB/W/m |
| Impedance | 4Ω |
| Crossover Points | 100Hz, 750Hz, 4.5kHz, 10kHz |
| Horizontal Dispersion | ±2dB in 180° |
| Finish | Santos Pau Ferro |
| MSRP (1987) | $7,500 |
| Connections | - Input · Binding Post (Universal)
- Servo-Control Cable · DIN
|
| Controls | - Super Tweeter Level · Rotary Pot
- Tweeter Level · Rotary Pot
- Upper Midrange Level · Rotary Pot
- Midbass Coupler Level · Rotary Pot
- Servo · Toggle Switch
- Bass Extension · Toggle Switch
- High Pass Filter (Electronic Control Unit) · Rotary Pot
- Low Pass Filter (Electronic Control Unit) · Rotary Pot
- Bass contour (Electronic Control Unit) · Rotary Pot
- Low Frequency Phase (Electronic Control Unit) · Rotary Pot
- Low Frequency Level (Electronic Control Unit) · Rotary Pot
|
| Notes | *EMIT (ElectroMagnetic Induction Tweeter)
**EMIM (ElectroMagnetic Induction Midrange)
Requires Reference Standard Crossover |
