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Reference RS125T-8
Technical Highlights
- Power: 30 watts RMS, 60 watts maximum, Impedance: 8 ohms.
- Sensitivity: 86.9 dB @ 2.83 V/1m, Frequency: 75–9,200 Hz.
- Voice coil diameter: 25 mm, Resonant frequency: 76 Hz.
- More technical details
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Reference RS125T-8 by Dayton Audio Description
Dayton Audio Reference RS125T-8 is a 5-inch (13 cm) midbass driver with a truncated cast frame and black anodized aluminum diaphragm. The low-distortion motor design with a copper ring in the magnetic gap and long-stroke suspension is complemented by a rubber surround, aluminum phase plug, aluminum cast frame, ferrite magnet, rubber magnet sleeve, and gold terminals. Power ratings: 30 Watts RMS and 60 Watts maximum at 8 Ohms, sensitivity 86.9 dB at 2.83 V/1 m, frequency response 75–9,200 Hz, voice coil diameter 25 mm. TSP: Fs 76 Hz, Qms 2.62, Qes 0.61, Qts 0.50, mms 5.1 g, Cms 0.87 mm/N, Sd 54.1 cm², Vd 15.1 cm³, BL 5.04 Tm, Vas 3.56 liters, Xmax 2.8 mm. Dimensions: outer diameter 125.5 mm, total depth 55 mm, cutout 94 mm, 4 mounting holes; enclosure recommendations sealed 1.69 liters (F3 136 Hz) or bass reflex 5.1 liters (F3 70 Hz). Designed and manufactured in the U.S.A.
- 5-inch (13 cm) midbass driver
- Truncated aluminum cast frame
- Black anodized aluminum diaphragm
- Rubber surround
- Aluminum phase plug
- Low-distortion motor design
- Copper ring in the magnetic gap
- Long-stroke motor and suspension
- Voice coil wire: copper
- Voice coil former: aluminum
- Magnet material: ferrite
- Rubber magnet sleeve
- Connection: gold terminals
- Outer diameter: 125.5 mm
- Total depth: 55 mm
- Cutout: 94 mm
- Mounting holes: 4
- Color: black anodized
- Recommended sealed enclosure: 1.69 liters, F3 136 Hz
- Recommended bass reflex enclosure: 5.1 liters, F3 70 Hz
- Designed and manufactured in the U.S.A.
- RMS power handling: 30 Watts
- Max power handling: 60 Watts
- Impedance: 8 Ohms
- Sensitivity: 86.9 dB @ 2.83 V/1 m
- Frequency response: 75–9,200 Hz
- Voice coil diameter: 25 mm
- DC resistance Re: 6.4 Ohms
- Voice coil inductance Le: 0.58 mH @ 1 kHz
- Resonance frequency Fs: 76 Hz
- Qms: 2.62
- Qes: 0.61
- Qts: 0.50
- Moving mass mms: 5.1 g
- Compliance Cms: 0.87 mm/N
- Diaphragm area Sd: 54.1 cm²
- Displacement volume Vd: 15.1 cm³
- Force factor BL: 5.04 Tm
- Equivalent volume Vas: 3.56 liters
- Maximum excursion Xmax: 2.8 mm

