Dayton Audio Reference RS75
3" (8cm) midrange driver
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Description
The Reference RS75 is a 3" (8cm) midrange driver from Dayton Audio. These models are known for their ability to outperform "boutique" drivers, despite their comparatively affordable price range. They are captivating with their understated yet highly technical design and high-resolution sound quality with low distortion. Manufactured and developed in the USA, they feature an aluminum frame, an aluminum cone and a rubber surround. Special features include a low-distortion motor system with copper ring, copper cap and aluminum phase plug.
Highlights
- Full-range driver
- Low distortion and high resolution
- Aluminum frame, aluminum cone, rubber surround
- Low-distortion copper ring, copper cap and aluminum phase plug
- Discreet but highly technical design as a cosmetic statement
- Developed and manufactured in the USA
Features of the RS75-4
- 3" (8cm) midrange driver
- Power handling : 15 Watt RMS
- Max. load capacity : 30 Watt
- Impedance (Z) : 4 Ohm
- Sensitivity: 85.2 dB @ 2.83V/1m
- Frequency response: 170 - 20,000 Hz
- Voice coil diameter: 16 mm
- DC resistance (Re) : 3.1 Ohm
- Voice coil inductance (Le) : 0.72 mH @ 1 kHz
- Resonant frequency (Fs) : 177 Hz
- Mechanical grade (Qms) : 5.76
- Electrical value (Qes) : 0.97
- Overall quality (Qts) : 0.83
- Moving mass (mms) : 1.1g
- Compliance of the suspension (Cms) : 0.72 mm/N
- Membrane surface area (Sd) : 12 cm²
- Displacement volume (Vd) : 1.31 cm³
- Force factor (BL) : 2.01 tm
- Equivalent volume (Vas) : 0.14 liters
- Maximum deflection (Xmax) : 1.1 mm
- Material cone / membrane: Black anodized aluminium cone
- Bead material: Rubber
- Voice coil wire Material: Copper
- Material of the voice coil former: aluminum
- Basket/frame material: cast aluminum
- Magnetic material: Ferrites
- Outer diameter: 72 mm
- Total depth: 38.5 mm
- Diameter of the cut-out: 54 mm
- Mounting holes: 4
- Closed volume: 0.56 liters
- Closed F3: 174 Hz
- Bass reflex volume: 1.13 liters
- Bass reflex F3: 93 Hz
Features of the RS75-8
- 3" (8cm) midrange driver
- Power handling : 15 Watt RMS
- Max. load capacity : 30 Watt
- Impedance (Z) : 8 Ohm
- Sensitivity: 80.5 dB 2.83V/1m
- Frequency response: 160 to 20,000 Hz
- Voice coil diameter: 0.60"
- DC resistance (Re) : 6.2 Ohm
- Voice coil induction (Le) : 0.32 mH
- Resonant frequency (Fs) : 185 Hz
- Mechanical quality class (Qms) : 5.12
- Electrical grade (Qes) : 1.35
- Overall quality (Qts) : 1.07
- Moving mass (mms) : 1.23g
- Compliance of the suspension (Cms) : 0.60 mm/N
- Membrane surface area (Sd) : 12 cm²
- Force factor (BL) : 2.55 tm
- Equivalent volume (Vas) : 0.004 ft.³
- Maximum deflection (Xmax) : 1.3 mm
- Cone/diaphragm material: aluminum
- Bead material: Rubber
- Voice coil wire material: copper
- Material of the voice coil former: aluminum
- Basket/frame material: cast aluminum
- Magnetic material: Ferrites
- Outer diameter: 2.83"
- Total depth: 1.52"
- Cut-out diameter: 2.13"
- Bolt circle diameter: 2.52"
- Mounting holes: 4
- Closed volume: 0.48 liters
- Closed F3: 170 Hz
- Bass reflex volume: 0.82 liter
- Bass reflex F3: 95 Hz
Download data sheet
