When it comes to adding deep bass to your home entertainment system, the choice between the new $299 Klipsch Flexus SUB 100 and the premium $2,499 SVS SB17-Ultra R|Evolution represents two very different approaches to solving the same problem. Let's explore how these subwoofers stack up and help you decide which makes sense for your setup.
Today's powered subwoofers have evolved significantly from the boomy boxes of the past. They now incorporate sophisticated digital processing, wireless connectivity, and advanced driver materials to deliver cleaner, more accurate bass. The key is finding the right balance of features, performance, and value for your specific needs.
Released in early 2024, the Klipsch Flexus SUB 100 represents the latest in wireless subwoofer technology, designed specifically for seamless integration with soundbars. The SVS SB17-Ultra R|Evolution takes a more traditional approach, focusing on absolute performance through massive power reserves and advanced engineering.
The physics of bass reproduction are fairly straightforward - larger drivers and more power generally mean deeper, louder bass. This fundamental principle plays out clearly when comparing these two subwoofers:
The Flexus SUB 100's 10-inch driver and 160-watt peak amplifier deliver respectable bass down to 26Hz. This covers most music and movie content, though you might miss the deepest rumbles in action films. Its sealed cabinet design helps with tight, accurate response - important for music listening.
In contrast, the SB17-Ultra's massive 17-inch driver, powered by dual 1400-watt amplifiers (2800W total), reaches down to a subterranean 15Hz. This extra octave of bass extension makes a real difference with modern movie soundtracks, letting you feel every explosion and earthquake. The dual voice coils and extreme power handling also mean it can play significantly louder without strain.
Raw output isn't everything - the quality of bass matters just as much. Here's where engineering and design philosophy make a big difference:
The Flexus SUB 100 benefits from Klipsch's collaboration with Onkyo, incorporating over 1,000 testing cycles to optimize performance. Its sealed design and long-throw driver deliver surprisingly tight bass for its price point. The built-in digital signal processing (DSP) helps prevent distortion at higher volumes.
The SB17-Ultra takes things several steps further with its 295MHz Analog Devices DSP processor. This sophisticated brain monitors and adjusts the subwoofer's performance in real-time, ensuring clean output even at extreme volumes. The massive motor structure (featuring a 55-pound magnet) provides exceptional control over the driver, resulting in faster, more detailed bass reproduction.
The Flexus SUB 100 shines when it comes to convenience. Its wireless connectivity means you can place it almost anywhere within range of your soundbar. At just 20.7 pounds, it's easy to experiment with different positions. The companion app provides basic adjustments for volume and crossover settings.
The SB17-Ultra requires more careful consideration due to its 124-pound weight and need for a dedicated power circuit. However, it offers more sophisticated room correction capabilities through its app, helping achieve optimal performance in any space. The dual balanced XLR and unbalanced RCA connections provide flexibility for high-end audio systems.
Your existing equipment should influence your choice:
The Flexus SUB 100 is designed primarily for use with Klipsch soundbars, though it can work with any system having a subwoofer output. Its wireless nature makes it particularly appealing for clean installations where running cables would be difficult.
The SVS SB17-Ultra R|Evolution pairs well with high-end receivers and processors, especially those with advanced bass management capabilities. Its extreme output capabilities match well with large speakers in dedicated home theaters.
While the price difference is substantial, it's important to consider long-term value:
The Flexus SUB 100 represents an excellent value for smaller rooms and soundbar-based systems. Its wireless capability and compact size make it a practical choice for many users, and the performance punches above its price point.
The SB17-Ultra is a significant investment but could be considered end-game equipment for serious enthusiasts. Its overbuilt design and five-year warranty suggest many years of reliable service. The performance capabilities mean you're unlikely to outgrow it, even if you upgrade other components.
For most users in typical living rooms, the Flexus SUB 100 provides more than enough output for enjoyable movie and music playback. Its wireless convenience and app control make it user-friendly for the whole family.
The SB17-Ultra makes sense for dedicated listening rooms and home theaters where ultimate performance is the goal. Its ability to pressurize larger spaces and maintain composure at reference levels sets it apart from entry-level options.
Consider these key factors when making your choice:
Both subwoofers excel in their intended use cases. The Flexus SUB 100 brings wireless convenience and solid performance to the entry-level market, while the SVS SB17-Ultra R|Evolution represents the current state of the art in home subwoofer design.
For most users building around a soundbar or looking to add bass to a modest system, the Flexus SUB 100 provides excellent value and performance. Those building serious home theaters or seeking the ultimate in bass reproduction will find the SB17-Ultra's premium price justified by its exceptional capabilities.
Remember, your room size, existing equipment, and listening preferences should guide your decision more than specs alone. Both options represent strong choices within their respective categories - it's just a matter of matching the right tool to your specific needs.
| Klipsch Flexus SUB 100 | SVS SB17-Ultra R|Evolution |
|---|---|
| Price - Total investment required | |
| $299 (entry-level pricing) | $2,499 (premium segment) |
| Driver Size - Affects maximum output and bass depth | |
| 10" paper cone driver | 17" glass fiber composite driver with dual 8" voice coils |
| Amplifier Power - Determines headroom and dynamic capability | |
| 80W RMS / 160W peak | 2800W RMS / 6000W peak |
| Frequency Response - Lower numbers mean deeper bass | |
| 26-250 Hz (±3dB) | 15-320 Hz (±3dB) |
| Maximum Output - Overall volume capability | |
| 103.7 dB | 120+ dB (significantly more powerful) |
| Cabinet Design - Affects bass character | |
| Sealed MDF enclosure (13.2" x 13.3" x 13.9") | Sealed MDF with extensive bracing (20.0" x 19.5" x 21.2") |
| Weight - Impacts placement flexibility | |
| 20.7 lbs (easily moveable) | 124 lbs (permanent installation) |
| Connectivity - Setup flexibility | |
| Wireless via USB transmitter + Mono RCA | Balanced XLR and unbalanced RCA inputs/outputs |
| Control Options - Ease of adjustment | |
| Basic app control, BLE remote | Advanced DSP app control, room correction, parametric EQ |
| Special Features - Additional capabilities | |
| Dual sub capability, wireless pairing | Built-in line conditioner, high-res DSP, dual mono amplifiers |
| Warranty - Long-term protection | |
| 2 years | 5 years |
The $299 Klipsch Flexus SUB 100 is ideal for small living rooms due to its compact size and wireless design. The SVS SB17-Ultra would be overkill in this setting.
The main difference is scale and power. The Flexus SUB 100 is an entry-level 10" wireless subwoofer, while the SB17-Ultra is a premium 17" subwoofer with dramatically more power and deeper bass extension.
The SVS SB17-Ultra R|Evolution delivers superior movie performance with its 15Hz extension and massive output. However, the Flexus SUB 100 still provides satisfying movie bass for casual viewing.
Both perform well with music. The Flexus SUB 100 offers tight, accurate bass, while the SB17-Ultra provides deeper extension and better detail at higher volumes.
The Flexus SUB 100 works best with Klipsch soundbars but can connect to any system with a subwoofer output. The SB17-Ultra works with any audio system using standard RCA or XLR connections.
The Flexus SUB 100 is easier to set up thanks to its wireless design and lighter weight. The SB17-Ultra requires more careful placement and wired connections.
The SB17-Ultra at $2,499 is worth it for dedicated home theaters and serious audio enthusiasts. Most users will be very satisfied with the $299 Flexus SUB 100.
The Flexus SUB 100 reaches 103.7dB, suitable for most home use. The SB17-Ultra exceeds 120dB, providing reference-level output for large rooms.
The Flexus SUB 100 works with any standard outlet. The SB17-Ultra benefits from a dedicated circuit due to its high power demands.
Both models support dual subwoofer setups. The Flexus SUB 100 pairs wirelessly with a second unit, while the SB17-Ultra requires wired connections.
The SVS SB17-Ultra comes with a 5-year warranty, while the Flexus SUB 100 offers 2-year coverage.
The Flexus SUB 100 is optimal for rooms up to 300 square feet, while the SB17-Ultra can handle large spaces over 1000 square feet.
We've done our best to create useful and informative comparisons to help you decide what product to buy. Our research uses advanced automated methods to create this comparison and perfection is not possible - please contact us for corrections or questions. These are the sites we've researched in the creation of this article: crutchfield.com - listenup.com - bestbuy.com - forum.planetofthevapes.co.uk - cnet.com - youtube.com - klipsch.com - av-connection.com - greentoe.com - youtube.com - bestbuy.com - svsound.com - musicdirect.com - crutchfield.com - svsound.com - soundapproach.com - worldwidestereo.com - audioadvice.com - primetimeav.com - summithifi.com - bhphotovideo.com
