Short answer: the Kali Audio LP-6 V2, if you are buying new. The Buchardt A500 ranks higher than it (#18 vs #37 of 119 powered bookshelf speakers, 4.6/5 vs 4.4/5) but is discontinued, so only consider it used; the Kali Audio LP-6 V2 is still sold new at $498.
Why pick the Kali Audio LP-6 V2: Erin’s measurements give a 7.48 ideal-subwoofer score and 42.5Hz -3dB bass extension, a strong combination for an affordable nearfield monitor. Watch for: The 2.5dB response span from 300Hz to 5kHz leaves some tonal unevenness.
The Buchardt A500 is the more accurate, deeper-bass option. Erin measured unusually deep bass for the cabinet size: 24.9Hz at -3dB. Its measured preference score, a predictor of how neutral it sounds, is 7.02 against 5.53 for the Kali Audio LP-6 V2. Its bass reaches about 24.9Hz before falling 3dB, against 42Hz for the Kali Audio LP-6 V2. The catch: Bass extension depends on the selected tuning and comes with output tradeoffs at high levels.
Buy the Kali Audio LP-6 V2 if you want one new; the Buchardt A500 is discontinued, so only look for it used.
Still deciding? The full Powered Home rankings cover every ranked option.
Erin’s measurements give a 7.48 ideal-subwoofer score and 42.5Hz -3dB bass extension, a strong combination for an affordable nearfield monitor.
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Erin measured unusually deep bass for the cabinet size: 24.9Hz at -3dB.
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Specifications Side By Side
| Kali Audio LP-6 V2 | Buchardt A500 | |
|---|---|---|
| Price | $498 per pair | $4,150 per pair Discontinued |
| Ranked | #37 of 119 in Large Size Powered Bookshelf Speakers | #18 of 119 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 42Hz (measured, Erin’s Audio Corner) | 24.9Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 39.1Hz (measured, Erin’s Audio Corner) | 23.4Hz (measured, Erin’s Audio Corner) |
| Drivers | 1” soft-dome tweeter; 6.5” woofer | 0.74-inch dome; front and rear 6-inch long-throw woofers |
| Amplifier Power | 40W LF + 40W HF per speaker; Bi-amplified Class D | 3 x 150W per speaker |
| Inputs | XLR, balanced TRS and RCA | XLR, WiSA |
| Dimensions | 14.1”H x 8.8”W x 10.2”D | 14.4H x 7W x 11D inches |
| DSP | Yes; boundary presets and LF/HF trims | - |
| Maximum SPL | Approximately 102dB per pair with good measured linearity (Erin’s Audio Corner) (manufacturer specified) | - |
| Spinorama Preference Score | 5.53 | 7.02 |
| Spinorama Preference Score with Perfect Sub | 7.48 | 7.92 |
| XLR Input | Yes | Yes |
| RCA Input | Yes | No |
| TRS Input | Yes | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | No |
| Weight | 15.5 lbs (7.05 kg) each | 55.1 lbs (25kg)/pair |
| Bluetooth | No | No |
| Frequency Response | 47Hz - 21kHz (±3dB) (Manufacturer specified) | 25Hz - 40kHz (+/- 1.5dB) (Manufacturer specified) |
| Bass Extension | - | Master-tuning dependent; approximately 25–40Hz |
Frequency Response Compared
Both speakers’ spinorama measurements, overlaid. A flatter line is more neutral: peaks sound forward or harsh, dips sound recessed. Each curve is shifted so its average from 300 Hz to 3 kHz sits at 0 dB, so loudness differences between the two are removed and only the shape is compared.
Measurement data: Kali Audio LP-6 V2 (measured by Erin’s Audio Corner) and Buchardt A500 (measured by Erin’s Audio Corner), via spinorama.org.
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