Description
The ARC Audio RS 4.0 is a matched pair of 4-inch raw midrange speakers designed for active sound-quality front stages. Its larger radiating area and 90 Hz lower published response allow it to cover more of the vocal and lower-midrange region than a compact wideband driver while still extending to 11.5 kHz.
The hard-pressed composite papyrus cone is supported by a low-damping rubber surround and mounted in a rigid cast-aluminum basket. A high-flux neodymium motor with an integrated shorting ring is used to control inductance and reduce motor-related non-linearity through the driver’s operating range.
The RS 4.0 is rated for 75 watts RMS, 150 watts maximum, and 91 dB sensitivity. It is supplied as a raw matched pair without passive crossovers or grilles and is intended to be filtered by an external DSP or properly designed crossover network.
Specifications
| Series | RS Series |
|---|---|
| Sold as | Matched pair |
| Speaker type | Raw midrange |
| Size | 4 inches |
| Nominal impedance | 4 ohms |
| RMS power handling | 75 watts |
| Maximum power | 150 watts |
| Sensitivity | 91 dB |
| Frequency response | 90 Hz–11.5 kHz |
| Mounting depth | 1.94 inches |
| Cone | Hard-pressed composite papyrus |
| Surround | Low-damping rubber |
| Basket | Cast aluminum |
| Motor | High-flux neodymium with integrated shorting ring |
| Passive crossover included | No |
| Grilles included | No |
Features
- Matched 4-inch reference midrange pair.
- Designed for active sound-quality systems.
- Hard-pressed composite papyrus cones.
- Low-damping rubber surrounds.
- Rigid cast-aluminum baskets.
- High-flux neodymium motors.
- Integrated motor shorting rings.
- 90 Hz–11.5 kHz published response.
- 91 dB sensitivity.
- Raw-driver format for DSP-controlled systems.