Overview
Features
Technical Details
Downloads
Overview
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.
Features
- 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
Technical Details
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 Graph:
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)
Downloads
Applications and Systems
Active Systems:
- GB10 and GB25: Perfect for A-pillars, doors or a center channel
- GB10 and GB40: Perfect for A-pillars, doors or a center channel
- GB10 and GB60: Great two-way system for factory locations
- GB10, GB25 and GB60: The ultimate active system for A-pillars with door or kick panel-mounted midbass. Great for doors when only a small midrange driver will fit between the midbass and the tweeter.
- GB10, GB40 and GB60: The ultimate active system for door panel installation.
Passive Systems with dedicated crossovers:
- GB10, GB40 and GB410C: Perfect for doors or a center channel with a passive crossover. Shallow design is great for BMW doors.
- GB10, GB60 and GB610C: Great for standard OE locations or for kick panels.
In combination systems with active and passive crossovers:
- GB10, GB40, GB410C and GB60: The ultimate system for doors when a small tweeter is required using a passive crossover between mid and tweeter and an active crossover between midbass and midrange
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