9IH555CB vs 9IH506B Speaker Adapter Comparison
By iHome | Premium Audio Products & Innovative Sound Solutions | Published: 2026-10-22
Category: Comparisons
Compare the iHome 9IH555CB and 9IH506B AC power adapters to find the right fit for your Bluetooth speaker. Learn about voltage, amperage, and plug shape differences.
Quick Answer
The 9IH506B delivers 12V/3A with an elbow plug, ideal for high-power speakers, while the 9IH555CB provides 5V/2A with a straight plug, suited for lower-power devices. Your choice depends entirely on your speaker's power requirements.
Why Voltage and Amperage Matter
Using the wrong adapter can damage your speaker or cause it to not power on. The 9IH506B outputs 12V at 3.0A, while the 9IH555CB outputs 5V at 2.0A. These are not interchangeable. Always match the voltage exactly; a higher amperage adapter (e.g., 3A vs 2A) is safe if the voltage matches, but never the reverse.
Plug Shape: Elbow vs Straight
The physical plug shape affects how the adapter fits in tight spaces. The 9IH506B has an elbow (L-shaped) plug, which can sit flush against a wall or behind furniture. The 9IH555CB uses a straight (I-shaped) plug, which may protrude more but can be easier to plug into some power strips.
Key Trade-offs Between the Two Adapters
- Power Output: 9IH506B: 12V/3A (36W). 9IH555CB: 5V/2A (10W). The 9IH506B delivers over three times the power, necessary for larger speakers with bigger amplifiers. Check your speaker's input rating; using a 5V adapter on a 12V speaker will not work, and vice versa can cause damage.
- Plug Shape: 9IH506B: elbow (L-plug) for low-profile placement. 9IH555CB: straight (I-plug) for straightforward insertion. Choose based on your outlet accessibility.
- Compatibility Range: The 9IH555CB's 5V output is common for USB-powered devices and some compact Bluetooth speakers. The 9IH506B's 12V output is typical for larger bookshelf-style or boombox speakers. If uncertain, consult your speaker's manual or the original adapter label before purchasing.
Product Facts at a Glance
- 9IH506B(W)6: AC Power Adapter, Input 100-240V, Output 12V/3A, 3.5mm elbow plug, black. The 12V/3A output suits higher-powered Bluetooth speakers that need more current, and the elbow plug helps keep the cord tidy near the wall.
9IH506B(W)6 - 9IH555CB(J)6: AC Power Adapter, Input 100-240V, Output 5V/2A, 3.5mm straight plug, black. The 5V/2A output is typical for smaller portable speakers and other low-power accessories, and the straight plug works well in open outlets.
9IH555CB(J)6
Which Adapter Should You Choose?
Best For
- Owners of larger iHome Bluetooth speakers that require 12V input and need a space-saving elbow plug
- Users with limited outlet clearance who prefer the L-shaped plug to keep the cord out of the way
Not For
- Small portable speakers or devices that require 5V input (choose the 9IH555CB instead)
- Users who need a straight plug for easy insertion into crowded power strips
