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4" 60 WT MIDRANGE
A 4-inch
sealed-back mid-range transducer for the mid-band section of two-way and
three-way loudspeaker systems, column and pillar speakers, public-address
cabinets, home-theatre satellites and multimedia enclosures. The closed basket
encloses the motor in its own sealed chamber, so the driver is acoustically
self-contained: no internal sub-enclosure is needed, and it is unaffected by
the pressure of a woofer sharing the same cabinet. Cabinet construction is
simpler and mid-band performance is repeatable from build to build.
The
measured on-axis response holds a broad, uniform plateau from 730 Hz to 9.7 kHz
within ±3 dB, and ±3.5 dB across the critical 700 Hz – 4 kHz vocal region.
Below 700 Hz the sealed chamber gives a steep, well-damped 15–18 dB/octave
roll-off that acts as a natural acoustic high-pass and protects the driver from
over-excursion. A controlled break-up mode near 6.2 kHz adds a presence lift
that extends useful output into the lower treble, allowing a tweeter crossover
as high as 6–8 kHz.
Key Features
- Program Power : 30 W
- Rated Power : 60 W PMPO
- Frequency Range : 550 Hz – 14 kHz
- Nominal Impedance : 4 Ω
- Nominal Diameter 104 mm (4 in)
- Construction Sealed-back (closed basket)
- Nominal Impedence 4 Ω
- DC Resistance (Re) 3.5 Ω
- Nominal Power Handling(AES) 15 WT AES
- Rated Power 60 W PMPO
- Recommended Amplifier Power 5 – 15 W per channel into 4 Ω
- Effective Frequency Range 730 Hz – 9.7 kHz
- Response Uniformity ±3.5 dB, 700 Hz – 4 kHz | ±5 dB, 800 Hz – 10 kHz
- Recommended Crossover 1 kHz high-pass, 12 dB/octave
- Linear Excursion (Xmax) ±1.54 mm
- Voice Coil Winding Height 4.45 mm
- Top Plate (Gap) Height 2.75 mm
- Effective Radiating Area (Sd) approx. 55 cm²
- Baffle Cut-out 95 mm
- Mounting Depth 48.5 mm
- Gross Weight 0.30 kg
- Overall Diameter 104 mm
- Baffle Cutout Diameter 95 mm
- Flange and Gasket Thickness 4.5 mm
- Mounting depth (below baffle) 48.5 mm
- Overall height (incl. flange) 53.0 mm
- Flange seating width, per side 4.5 mm
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