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GRS 5-1/4" Sealed Back Midrange with 1" Voice Coil 8 Ohm

GRSPart # 292-433
Model: SPBF-8
The GRS SPBF-8 is a high sensitivity 8 ohm, 60W 5.25” sealed midrange with a 1” diameter voice coil and polyimide former. This midrange driver uses a durable poly cone body and foam surround. It is a dedicated midrange for 2-way and 3-way projects. The sealed frame means it does not require a separate enclosure. Use it as a replacement speaker or add to an existing system.

Key Features

  • Sealed frame design eliminates the need for a separate enclosure
  • High sensitivity for maximum output
  • Extended frequency range out to 9kHz
  • Economic way to add a dedicated midrange to a system
  • Polyamide voice coil for high power handling
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Overview

GRS 5-1/4" Sealed Back Midrange with 1" Voice Coil 8 Ohm

GRS SPBF-8 5-1/4" Sealed Back Midrange with 1" Voice Coil 8 Ohm

A consistent and predictable driver

The GRS SPBF-8 is a 5-1/4" sealed midrange driver with low distortion characteristics and predictable performance, making this a great component for speaker designers. The sealed back frame provides isolation of the cone when installed in cabinets with larger woofers so the SPBF-8 performs consistently, regardless of what enclosure you use!

Key Specs:

  • Nominal Diameter: 5-1/4
  • Power Handling (RMS): 30W
  • Power Handling (MAX): 60W
  • Impedance: 8 Ohms
  • Frequency Response: 500Hz-9kHz
  • Sensitivity: 89 dB @ 2.83v/1m
  • Voice Coil Diameter: 1"

Frequency Response & Impedance Curve

the GRS SPBF-8 has a wide frequency response from 500Hz to 9kHz. This bandwidth lends itself well to midrange applications in 3-Way cabinets. The frequency response and impedance load is consistent in many different enclosures due to the sealed frame of the GRS SPBF-8, making this a versatile driver for many projects.

Inert Poly Cone and Foam Surround

The GRS SPBF-8 has a non-resonant poly cone which minimizes breakup at higher frequencies, and a foam surround allowing plenty of excursion for midbass duty. The sealed frame of the SPBF-8 encloses an optimum volume of air to ensure perfect suspension compliance for consistent and predictable performance.

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Product Details

BrandGRS
ModelSPBF-8
Part Number292-433
UPC848864069555
Unit of MeasureEach
Weight1.75

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