Short answer: the Neumi BS5. It ranks #38 of 179 bookshelf speakers by sound quality, rated 3.8/5, at $139.99. The Parts Express Copperhead Desktop Kit ranks #142, rated 2.5/5, at $119.98, $20.01 cheaper, which does not close the gap in sound quality.
The Neumi BS5 is the more accurate, deeper-bass pick. Budget bookshelf speakers with accurate, punchy sound that work with any ordinary receiver, an exceptional value. Its measured preference score, a predictor of how neutral it sounds, is 3.60 against 2.11 for the Parts Express Copperhead Desktop Kit. Its bass reaches about 64Hz before falling 3dB, against 98.1Hz for the Parts Express Copperhead Desktop Kit. Watch for: Erin measured F3 at 64Hz, so kick-drum punch should not be mistaken for deep-bass extension.
The case for the Parts Express Copperhead Desktop Kit: An inexpensive beginner flat-pack desktop kit with one full-range driver per side, made for near-field listening with a subwoofer. The tradeoff: Despite the ‘full-range’ label, output rolls off around 120-150Hz and a subwoofer with an unusually high 100-200Hz crossover is effectively mandatory.
Buy the Neumi BS5. It is rated higher for sound quality, and the $20.01 you would save on the Parts Express Copperhead Desktop Kit does not close the gap.
Want more options? Browse the full Passive Home rankings.
Measured Differences
- Bass depth: the Neumi BS5 reaches 41 Hz (10 dB down) against 69.3 Hz for the Parts Express Copperhead Desktop Kit, about an octave deeper. Low bass that the other only hints at comes through with real weight.
- Efficiency: the Neumi BS5 is rated at 84 dB sensitivity against 81 dB for the Parts Express Copperhead Desktop Kit, so it plays as loud with roughly half the amplifier power.
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Specifications Side By Side
| Neumi BS5 | Parts Express Copperhead Desktop Kit | |
|---|---|---|
| Price | $139.99 per pair | $119.98 per pair |
| Ranked | #38 of 179 in Medium Size Bookshelf Speakers | #142 of 179 in Medium Size Bookshelf Speakers |
| Bass Extension (-3dB) | 64Hz (measured, Erin’s Audio Corner) | 98.1Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 41.0Hz (measured, Erin’s Audio Corner) | 69.3Hz (measured, Erin’s Audio Corner) |
| Sensitivity | Approximately 84dB/2.83V/1m (measured, Erin’s Audio Corner) | 81dB @ 1W/1m (measured by Erin’s Audio Corner and manufacturer specified) |
| Impedance | 4.6 ohms minimum; approximately 6 ohms nominal (measured, Erin’s Audio Corner) | 8 ohms (manufacturer specified) |
| Drivers | 1” silk-dome tweeter; 5” fiberglass woofer | 3.5” Dayton Audio PS95-8 full-range driver |
| Woofer Cabinet | ported, front | ported, bottom |
| Spinorama Preference Score | 3.60 | 2.11 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 6.12 | 5.35 (spinorama.org) |
| Dimensions | 10.6”H x 7.2”W x 8.5”D (269.2 x 182.9 x 215.9 mm) | 8”H x 5”W x 6.5”D (203 x 127 x 165 mm) |
| Weight | 7.1 lbs (3.2 kg) each | - |
| DIY Kit | No | Yes |
| Frequency Response | - | 120Hz-20kHz +/-3dB (manufacturer specified) |
| Power Handling | - | 10W RMS / 20W maximum; 25W RMS with 50Hz high-pass |
Where the Ratings Come From
- Neumi BS5: Spinorama.org measurements and reviews by Erin’s Audio Corner.
- Parts Express Copperhead Desktop Kit: Spinorama.org measurements and reviews by Erin’s Audio Corner.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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