Bose

Bose RSB901-1 Replacement Speaker Driver 4.5" 1 Ohm

4.4 (33 reviews)

Restore the Classic Sound of Your Bose 901 Speakers The GRS RSB901-1 is a replacement speaker driver designed for Bose 901 loudspeaker systems. Restore the original sound quality of your classic speakers with this high-quality replacement driver. Specifications: Impedance: 1 Ohm Com...

$40.99*
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

Restore the Classic Sound of Your Bose 901 Speakers

The GRS RSB901-1 is a replacement speaker driver designed for Bose 901 loudspeaker systems. Restore the original sound quality of your classic speakers with this high-quality replacement driver.

Specifications:

  • Impedance: 1 Ohm
  • Compatibility: Bose 901

Specifications

Component Type
Replacement Speaker Driver
Brand
Bose
Size
4.5"
Impedance
1 Ohm

Pros & Cons

👍 Pros

  • Specifically designed as a Bose replacement speaker driver, ensuring compatibility and proper function with Bose systems
  • Features a 4.5-inch size, indicating it is suitable for specific speaker enclosures that require this dimension
  • Offers a 1 Ohm impedance, which is a critical specification for matching with compatible audio amplifiers
  • Provides a direct component for repairing or maintaining existing Bose speaker setups
  • A genuine replacement part helps to restore original audio performance to compatible systems

👎 Cons

  • The 1 Ohm impedance is highly specific and requires careful matching with amplifiers, limiting broader compatibility
  • The 4.5-inch driver size means it is only suitable for speakers designed for this exact dimension
  • Lack of information on power handling or frequency response makes it difficult to assess audio performance characteristics
  • The product description does not specify which Bose speaker models it is compatible with, requiring user research
  • It is a single speaker driver, implying a user would need to purchase multiple for stereo or surround sound systems

Frequently Asked Questions

The Bose RSB901-1 Replacement Speaker Driver measures 4.5 inches in diameter.
This replacement speaker driver has an impedance of 1 Ohm.
No, this is a specific replacement part. Users would need to verify compatibility with their particular Bose speaker model, as the description does not list specific compatible systems.
While technically possible, the 1 Ohm impedance is very specific and would require an amplifier precisely matched for such a low impedance, which is uncommon in general audio setups.
The product is described as a "Replacement Speaker Driver," indicating it is a single unit. For stereo or multiple speaker systems, more than one would likely be needed.
The provided product description does not include information regarding the power handling (wattage) capabilities of the Bose RSB901-1 driver.
As a genuine Bose replacement part, it is designed to restore the original audio performance of compatible Bose speaker systems.