Designed as a dedicated midrange driver for special applications in 3-way systems, the GB25 is optimized for enclosures as small as 0.2 liters (2-1/2” x 2-1/2” x 2”). The GB25 can be installed in a tiny enclosure in a custom A-pillar or used infinite baffle in a door panel or a dashboard. Like all the GB Series midrange speakers, the GB25 includes a grille and installation kit that can be customized to blend with or highlight nearly any installation.

Treated Paper Cone
1” (25 mm) Voice Coil on Fiberglass Former
Milled Flat Single-Layer CCAL Voice Coil
Copper Inductance- and Distortion-Reducing Pole Piece Cap
Neodymium Motor with Bucking Magnet
Flat, Progressive Nomex® Spider
Nitrile Butadiene Rubber Surround
Proprietary Vented Cast Aluminum Basket
Chrome-Plated Cast Zinc Motor Housing
Screw Terminals
All-Metal Grille and Mounting Kits Included
Hex Screws and Tools Included
Removable and Paintable Grille
Rub-On Grille Logos Included for Custom Installation

Specifications:

Nominal Impedance: 4 Ω
RMS Power Handling: 100 W (with recommended crossover)
Peak Power Handling: 300 W (with recommended crossover)
Frequency Response (-3 dB): 150 Hz – 16 kHz
Sensitivity (2.83 V/1 M): 86 dB
Recommended Amplifier RMS Power Range: 20 W – 100 W
Recommended High Pass Filter Frequency and Slope: ≥ 200 Hz, ≥ 12 dB/oct
Recommended Low Pass Filter Frequency and Slope: ≤ 12 kHz, ≥ 12 dB/oct

Dimensions:

Frequency Response & Impedance:

Thiele & Small Parameters:

Revc: 2.3 Ω
Levc@1kHz: 0.06 mH
Sd: 26.4 cm²
Mmd: 3.34 g
Mms: 3.42 g
Cms: 256 µM/N
Vas: 0.26 liters
Fs: 170 Hz
BL: 3.4 TM
Qms: 4.8
Qes: 0.75
Qts: 0.65
Xmax (1-way linear): 4 mm (3/16”)
Basket Displacement: 0.06 liters (0.002ft³)

AUDIOFROG

AUDIOFROG GB25 2.5” LOUDSPEAKER