Designed to be used in two- or three-way systems, the GS40 includes a non-resonant injection-molded ABS plastic and fiberglass vented basket. The 1” copper voice coil wound on a Kapton® former provides high power handling. A parabolic propylene cone ensures long-term reliability and provides the right compromise between compliance and stiffness for flatter high frequency response. The ferrite motor includes a neodymium bucking magnet atop the pole piece for increased motor strength and sensitivity. Terminals are secured by a small PC board integrated into the inside of the basket.

The GS40 is optimized for use in passive systems with the GS10 tweeter and GS410C passive crossover network. It can also be used in active systems or in a three-way system with the GS10 and GS60 midrange. For a combination of active and passive three-way system, use the GS40 with the GS10 and GS410C and a GS60.

Proprietary injection molded mented ABS and fiberglass basket
1″ (25mm) copper voice coil on Kapton® former
Ferrite motor with neodymium bucking magnet for increased sensitivity
Parabolic propylene cone
Nitrile butadiene rubber surround
Flat progressive Nomex® spider
Fast-on terminals secured with integrated PC board
Grilles included
Hex screws and tools included

Specifications:

Nominal Impedance: 4Ω
RMS Power Handling: 70 W (with recommended crossover)
Peak Power Handling: 200 W (with recommended crossover)
Frequency Response (-3 dB): 90 Hz – 12 kHz
Sensitivity (2.83 V/1 M): 88 dB
Recommended Amplifier RMS Power Range: 15 W – 75 W
Recommended High Pass Filter Frequency and Slope: ≥ 150 Hz, ≥ 12 dB/oct
Recommended Low Pass
Filter Frequency and Slope: ≤ 3.5 kHz, ≥ 12 dB/oct

Dimensions:

Cut-out diameter: 93.6 mm (3-11/16”)
Overall Diameter: 110 mm (4-11/32”)
Overall Diameter Including Mounting Tabs: 121.5 mm (4-13/16”)
Mounting Depth: 48 mm (1-29/32”)
Mounting Height: 7.5 mm (5/16”)

Frequency Response Graph:

Thiele & Small Parameters:

Revc: 2.33 Ω
Levc@1kHz: 0.08 mH
Sd: 59.4 cm²
Mmd: 3.14 g
Mms: 4.19 g
Cms: 284.23 µM/N
Vas: 6.05 liters
Fs: 145.8 Hz
BL: 3.06 TM
Qms: 5.74
Qes: .995
Qts: .82
Xmax (1-way linear): 3.2 mm (1/8”)
Basket Displacement: 0.113 liters (0.004 ft³)

AUDIOFROG

AUDIOFROG GS40 4″ MIDRANGE LOUDSPEAKER