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Based on price data from 2 merchants for "Rolls SX21 Tiny Two-Way Crossover". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Elevate your sound system with the Rolls SX21 Tiny Two-Way Crossover, the ultimate tool for musicians and audio enthusiasts seeking precision in sound reinforcement. This compact powerhouse is designed to optimize your audio setup by splitting frequencies with a 24dB/octave filter rolloff, ensuring that your high and low outputs are crystal clear and impeccably balanced. Perfect for small sound reinforcement applications, the SX21 is a simple yet effective way to give your performance a professional edge without the hassle of bulky equipment.
The SX21 features a straightforward 1/4-inch input/output system, making it incredibly easy to integrate into any setup. With its user-friendly crossover frequency, low, and high output level controls, you'll have no trouble dialing in the perfect sound. Whether you're a gigging musician or a studio producer, the SX21 offers the reliability and precision you need to achieve a clean, dynamic audio experience. An external power supply ensures low noise operation, allowing you to focus solely on your craft without the distraction of unwanted hums or buzzes.
Key Features:
- 24dB/octave two-way frequency divider
- Compact and lightweight design
- 1/4-inch input/output system
- Crossover frequency range: 50Hz to 2.5kHz
- External power supply for noise-free operation
Owner's manual
Rolls SX21 Tiny Two-Way Crossover User ManualProduct specs
| Number of Channels | 1 |
| Modes | 2-way |
| Filters | 24 dB/Octave |
| Crossover Frequencies - Stereo | 50Hz-2.5kHz |
| Crossover Frequencies - Mono | 50Hz-2.5kHz |
| Inputs | 1 x 1/4" |
| Outputs | 2 x 1/4" |
| Height | 1.5" |
| Depth | 4.25" |
| Width | 3.625" |
| Weight | 1 lb. |
FAQs
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What is the main purpose of the Rolls SX21 Tiny Two-Way Crossover?
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The Rolls SX21 Tiny Two-Way Crossover is designed to split audio signals into two frequency bands, allowing you to direct different frequency ranges to separate audio outputs, commonly used to optimize sound systems by sending lows to subwoofers and highs to main speakers.
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What are the crossover frequency settings available on the Rolls SX21?
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The Rolls SX21 offers adjustable crossover frequencies ranging from 50Hz to 2.5kHz, allowing users to tailor the crossover point based on their specific audio setup and requirements.
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How does the Rolls SX21 handle input and output connections?
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The Rolls SX21 features a single 1/4" input and two 1/4" outputs, making it easy to integrate into various audio systems for effective frequency management.
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Is the Rolls SX21 suitable for live sound applications?
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Yes, the Rolls SX21 is ideal for live sound applications where precise frequency management is needed, such as directing low frequencies to subwoofers and high frequencies to main speakers for a balanced sound.
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What type of filters does the Rolls SX21 use?
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The Rolls SX21 uses 24 dB/Octave filters, providing steep roll-off characteristics for precise frequency separation and minimal overlap between the two audio bands.
Videos
Jon Willis
Billy Sheehan tone on a budget
Reviews
PROS
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Compact design fits easily on a pedalboard
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Offers a wide frequency range from 50 Hz to 2.5 kHz
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No noticeable hiss or coloration of sound
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Excellent for adding low-end bass to sound systems
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Adjustable crossover point allows customization for various setups
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Operates quietly with plenty of headroom
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Provides a clear separation of frequencies in bi-amped rigs
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Simple to use with clear input/output setup
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Affordable price for its functionality
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Helpful input clip light for monitoring levels
CONS
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Lacks a phase reversal knob and Lo/Hi shelving switches
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Uses a wall wart power supply, which can be cumbersome
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Unbalanced inputs and outputs may not suit professional applications
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DC power plug input can easily fall out
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Rolls SX21 Tiny Two-Way Crossover.
Features and functionality
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The Rolls SX21 applies a crossover on both high and low frequencies, unlike the SX95, which only processes low frequencies.
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The SX21's I/O is entirely 1/4", which may not suit systems requiring RCA connections.
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It's possible to distort lows while keeping highs clean, or vice versa, using the SX21, offering flexibility in sound experimentation.
Source
Use cases and applications
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Artist usage
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For The Winery Dogs' 2015 tour, Sheehan is using an SX21 to roll off low-end frequencies and give his sound more clarity and punch.
From this Premier Guitar interview: - "He also sometimes uses a Rolls Tiny Two-Way Crossover to pump his signal to a bass amp" https://www.premierguitar.com/pro-advice/love-and-sockets/reverend-peyton
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
Used With
Based on how musicians on Equipboard use Rolls SX21 Tiny Two-Way Crossover, it is most commonly used with the following gear.
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