Short answer: the Cambridge Audio L/R X for better sound quality, the ADAM Audio T8V for the lower price. The Cambridge Audio L/R X ranks #76 of 119 powered bookshelf speakers, rated 4.1/5, at $2,399. The ADAM Audio T8V ranks #94, rated 3.9/5, at $719.98, $1,679.02 cheaper.
Why pick the ADAM Audio T8V: Measured -3dB extension of 39.6Hz gives useful bass depth for an affordable large monitor. The tradeoff: The 6.31 ideal-subwoofer score and 3.0dB response span from 300Hz to 5kHz show less even tonal balance than stronger budget alternatives.
What the Cambridge Audio L/R X does well: An active 2.5-way speaker pair with HDMI eARC, a phono input, Wi-Fi streaming and measured bass down to 43Hz (-3dB). Watch for: On-axis response is less linear than the L/R S, with dips in the bass, a peak around 1-2kHz, and a dip spanning the upper mid-range into the lower treble; Cambridge confirmed the dip is a deliberate DSP notch for a tweeter breakup resonance rather than a driver flaw, but it was audible as a mild suck-out in an AB pink-noise comparison.
Buy the ADAM Audio T8V if the price matters more than sound quality. Buy the Cambridge Audio L/R X if sound quality matters more than the price.
Still deciding? The full Powered Home rankings cover every ranked option.
Measured -3dB extension of 39.6Hz gives useful bass depth for an affordable large monitor.
Amazon $359.99 eBay
An active 2.5-way speaker pair with HDMI eARC, a phono input, Wi-Fi streaming and measured bass down to 43Hz (-3dB).
Amazon $2,399.00 eBayPrices on this page were last checked October 17, 2026 at 6:04 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| ADAM Audio T8V | Cambridge Audio L/R X | |
|---|---|---|
| Price | $719.98 per pair | $2,399.00 per pair |
| Ranked | #94 of 119 in Large Size Powered Bookshelf Speakers | #76 of 119 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 39.6Hz (measured, Audio Science Review) | 43Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 33.2Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) | 37Hz (measured, Erin’s Audio Corner) |
| Dimensions | 15.8”H x 9.8”W x 13.2”D (401.3 x 248.9 x 335.3 mm) | 7.9” (200 mm) W x 330mm H x 260mm D (each) |
| Frequency Response | 33Hz - 25kHz (-6dB) (Manufacturer specified) | 35Hz - 24kHz (±3dB, manufacturer specified) |
| Inputs | XLR, RCA | HDMI eARC, RCA aux, RCA phono (MM), optical digital, USB-C, USB-A, Ethernet, Wi-Fi |
| Weight | 21.6 lbs (9.8 kg) | 22.9 lbs (10.4kg) each |
| Drivers | 8” (203mm) woofer | 28mm aluminum tweeter, 2x 5” mid-woofers, 2x 6” side-firing passive radiators |
| App | No | Yes |
| Bluetooth | No | Yes |
| EQ | Yes (Room adjustment) | - |
| DSP | No | Yes, room size, wall distance, and reflective surface correction |
| Amplifier Power | 90w Per Speaker | 800W total (400W per speaker) |
| Spinorama Preference Score | 4.65 | - |
| Spinorama Preference Score with Perfect Sub | 6.31 | - |
| XLR Input | Yes | No |
| RCA Input | Yes | Yes |
| TRS Input | No | No |
| Optical Input | No | Yes |
| Coaxial Input | No | No |
| USB Input | No | Yes |
| HDMI Input | No | Yes |
| AES Input | No | No |
| Aux Input | No | No |
| Bluetooth Codecs | - | SBC, AAC |
| Subwoofer Output | - | Yes |
| Outputs | - | Subwoofer |
Related Speaker Comparisons
More worthwhile head-to-heads for Cambridge Audio L/R X: