
SI-2100 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $449.00 | Condition is New, Niles SI-2100 100W Two-Channel Power Amplifier - Authorized Dealer, FREE SHIPPING | 100.0% |
![]() | $489.00 | Condition is New, Niles SI-2100 2 Channel Digital Power Amp. 2 X 100 Watts U.S. Authorized Dealer, FREE SHIPPING | ![]() |
![]() | $499.00 | Condition is New, Niles SI-2100 2 Channel Digital Power Amp; 2 X 100 W, FREE SHIPPING | ![]() |
![]() | $1005.16 | Condition is New, Niles SI-2100 2-Channel High Current Bridgeable Power Amplifier, FREE SHIPPING | 99.8% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $150.00 | Condition is Used, Niles SI-2100 Stereo Amplifier, shipping cost = $23.25 | 100.0% |
![]() | $299.99 | Condition is Used, Niles SI-2100 Stereo Integrated Amplifier Black RCA Inputs Banana Outputs, shipping cost = $13.88 | 99.1% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $424.99 | Condition is Open box, Niles SI-2100 2 Channel Digital Power Amp 2 X 100 W, FREE SHIPPING | 99.3% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $25.00 | Condition is For parts or not working, Niles SI-2100 Amplifier power switch, shipping cost = $11.35 | 100.0% |
![]() | $54.00 | Condition is For parts or not working, Niles SI-2100 Amplifier Main board, shipping cost = $16.45 | 100.0% |
![]() | $55.00 | Condition is For parts or not working, Niles SI-2100 Amplifier Power Supply Parts, shipping cost = $15.10 | 100.0% |

The Niles SI-2100 2-Channel High Bridgeable Power Amplifier is a powerful and versatile audio solution designed for custom installation applications. This amplifier boasts an impressive continuous power output of 2 x 150 watts RMS at 8 ohms, 2 x 300 watts RMS at 4 ohms, and a massive 2 x 600 watts peak power. With its high bridgeability feature, it can be configured to deliver an astonishing 2 x 1200 watts RMS at 8 ohms when used in bridged mode for driving subwoofers or other high-power applications.
This amplifier is equipped with Niles' proprietary Digital Signal Processing (DSP) technology, which ensures precise and accurate amplification of audio signals. The DSP features include parametric and graphic equalizers, crossover filters, and delay functions that allow for customized sound adjustments, making it an ideal choice for installations requiring advanced audio tuning.
The SI-2100 is designed with a robust and durable build, featuring a double-sided, gold-plated PCB, and a heavy-duty aluminum chassis to dissipate heat effectively. It also comes with a detachable, industrial-grade power cord and a set of RCA input and speaker binding posts to ensure a secure connection to the audio sources and speakers.
The amplifier's compact size, measuring 17 inches wide, 3.5 inches tall, and 14 inches deep, makes it a great fit for spaces with limited installation space. Its efficient Class D design not only provides exceptional power output but also minimizes heat generation and power consumption, saving energy and reducing operational costs.
In summary, the Niles SI-2100 2-Channel High Bridgeable Power Amplifier is a high-performance, versatile, and efficient audio solution designed for custom installation applications. With its impressive power output, advanced features, robust build, and compact size, it is an excellent choice for installers and audio enthusiasts looking for a reliable and versatile amplifier for their home theater, music, or commercial audio systems.
The Niles SI-2100 2-channel high bridgeable power amplifier is a popular choice for those seeking high-quality audio performance for their home theater or audio systems. Below are some pros and cons that may help in your decision-making process:
Pros:1. High Power Output: This amplifier delivers a maximum power output of 2 x 150 watts RMS at 8 ohms, making it suitable for powering a wide range of speakers.
2. Bridgeable: The SI-2100 can be bridged to deliver 2 x 300 watts RMS at 4 ohms, providing even more power for larger speakers.
3. Versatile Connectivity: It features gold-plated binding post terminals for easy speaker connections and comes with RCA inputs to accommodate a variety of audio sources.
4. Low Distortion: The amplifier's low-distortion design ensures accurate and clear audio reproduction, making it an excellent choice for discerning audiophiles.
5. Remote Control: The SI-2100 comes with a convenient remote control, allowing for easy volume adjustments and on/off functionality.
Cons:1. Size and Weight: The amplifier is relatively large and heavy, which may require additional space and consideration when installing.
2. Price: Compared to some other amplifiers in its power range, the SI-2100 may be considered expensive.
3. Limited Features: This amplifier does not have advanced features like Bluetooth connectivity, making it less suitable for users seeking a more versatile audio solution.
Conclusion:The Niles SI-2100 2-channel high bridgeable power amplifier offers a robust power output, low distortion, and versatile connectivity options, making it an excellent choice for those seeking high-quality audio performance. Its bridgeable capability allows for even more power when needed, making it suitable for larger speakers. However, its size, weight, and price may be drawbacks for some users. Overall, if you prioritize high-quality audio performance and are willing to invest in a capable amplifier, the SI-2100 is a worthy consideration.
Recommendation:If the Niles SI-2100 meets your power and connectivity requirements and fits within your budget, it is a solid choice for a high-performance amplifier. However, if you're looking for a more lightweight or cost-effective option, you may want to explore alternative amplifiers that still deliver high-quality audio performance. Ultimately, the decision depends on your specific needs and preferences.
Details:
Three turn-on modes: music sense, voltage trigger, and manual. Fast processing. Manufacturer: Niles. Free technical support, for all products.
Independent level controls. Two year limited warranty. Channels are bridgeable to 400 watts RMS into 8 ohms. 2-channel bridgeable power amplifier.
Digital, high current bridgeable stereo amplifier. Rack mount ears included. Tested and certified to us, Canada, EU, Australian safety ecm standards. Safe packaging.
Our perks: great prices and, exclusive offers, every day. Shipping: our five star shipping service guarantee:: low cost. 100 watts RMS per channel into 8 ohms all channels driven. BB express is built on a foundation of excellent service, dependable products, and efficient delivery.
It may vary, especially during peak holiday periods. 220 watts RMS per channel into 4 ohms all channels driven. Quick delivery. Removable line cord.
specifications vidioaudio:
- brand: Niles
- mpn: Si-2100
- type: Audio Amplifier/splitter
- upc: 760514017023
shipping vidioaudio:
- class: standard, expedited, one-day
- carrier: fedex
- service: fedex ground / fedex home delivery, fedex 2day, fedex standard overnight
- transit: 5-11 days
- type: calculated
offer vidioaudio:
- started: february 21, 2026
- availability: in stock
- options: ship-to-home
- best offers: true
- sold #: 9
- prices: $150.00–$1005.16
- item condition:
- New
- Used
- Open box
- For parts or not working
returns vidioaudio:
- policy: returns accepted
- paid by: buyer
- time: 30 days
- method: money back
payments vidioaudio:
- other
- wallet: paypal
- credit card: mastercard
general vidioaudio:
- category: Electronics > Tv, Video Home Audio
seller vidioaudio:
- city: carlsbad, california
- # reviews: 83790
- rating: 99.5%










