Short answer: the Airpulse A100 for better sound quality, the KRK Classic 5 for the lower price. The Airpulse A100 ranks #17 of 60 powered bookshelf speakers at $999.99. The KRK Classic 5 ranks #30 at $280, $719.99 cheaper.
What the KRK Classic 5 offers: High-quality Klippel NFS data produces a 5.22 Spinorama preference score with a subwoofer, essentially level with the Edifier MR4. Bass reaches 60.1Hz at -3dB and 54.2Hz at -6dB, and the speaker responds especially well to EQ: Spinorama’s corrected score rises from 2.71 to 5.34 without a subwoofer and from 5.22 to 7.71 with one. Watch for: The unequalized response has a large 6.5dB frequency-deviation band, elevated splashy treble above 4kHz, crossover directivity error, and sharply narrowing tweeter dispersion. Distortion becomes extreme below 50Hz. Its raw 2.71 preference score is weak without a subwoofer, so EQ and careful toe-in are strongly recommended.
What the Airpulse A100 offers: Horn-loaded ribbon tweeter (inherited from Airpulse’s flagship 7001 monitor, designed by Phil Jones) paired with a 5” hard-anodized aluminum cone woofer - a distinctive, low-mass driver combination rarely seen below $1,000. Directivity spread is the widest and most controlled of this batch (directivity_spdi_stddev 4.26). A full input set for a desktop system: RCA, USB, optical, coaxial, and Bluetooth, plus a dedicated subwoofer output and an included IR remote. Watch for: On-axis deviation (aad_on_axis 0.498) trails the pricier options in this group, and there’s no app-based EQ or DSP - bass/treble trim is limited to physical rear-panel knobs not reachable from the remote. The compact 5” woofer caps sub-bass extension at 63.0Hz (-3dB) / 53.2Hz (-10dB), the second-shallowest in this batch, effectively expecting an external subwoofer for full-range use. No Wi-Fi streaming (AirPlay/Chromecast) - Bluetooth only.
Buy the KRK Classic 5 if the price matters more than sound quality. Buy the Airpulse A100 if sound quality matters more than the price.
Specifications Side By Side
| KRK Classic 5 | Airpulse A100 | |
|---|---|---|
| Price | $280 | $999.99 |
| Ranked | #30 of 60 in Medium Size Powered Bookshelf Speakers | #17 of 60 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 60.1Hz (Spinorama/Audio Science Review) | 63.0Hz (measured, spinorama.org) |
| Bass Extension (-6dB) | 54.2Hz (Spinorama/Audio Science Review) | - |
| Spinorama Preference Score | 2.71 without subwoofer; 5.22 with subwoofer | - |
| Dimensions | 9.7"H x 7.4"W x 11.2"D (246.4 x 188 x 284.5 mm) | 6.3" x 11.1" x 10" (160 x 283 x 255 mm) (6.3 x 11.1 x 10.0 in) each |
| Frequency Response | 56Hz-30KHz (+-3dB) (Manufacturer specified) | 52Hz - 40kHz |
| Inputs | RCA, TRS, XLR | RCA (aux), USB, optical, coaxial, Bluetooth aptX |
| Weight | 12.9 lbs / 5.87 kg | 24.3 lbs / 11 kg (24.2 lb) each |
| Drivers | 5" (127mm) woofer | Horn-loaded ribbon tweeter, 5" hard-anodized aluminum cone woofer |
| App | No | None (physical bass/treble knobs, IR remote) |
| Bluetooth | No | Yes (SBC, aptX) |
| EQ | Yes (Room adjustment) | Yes, rear-panel bass/treble trim knobs |
| Output Power | 50w RMS Per Speaker | 100W total (40W+40W woofer, 10W+10W tweeter) |
| Bass Extension (-10dB) | - | 53.2Hz (measured, spinorama.org) |
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Prices on this page were last checked August 24, 2026 at 6:53 AM 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.
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The Two Speakers In Full
KRK Classic 5: $280 Amazon eBay
Pros: High-quality Klippel NFS data produces a 5.22 Spinorama preference score with a subwoofer, essentially level with the Edifier MR4. Bass reaches 60.1Hz at -3dB and 54.2Hz at -6dB, and the speaker responds especially well to EQ: Spinorama’s corrected score rises from 2.71 to 5.34 without a subwoofer and from 5.22 to 7.71 with one.
Cons: The unequalized response has a large 6.5dB frequency-deviation band, elevated splashy treble above 4kHz, crossover directivity error, and sharply narrowing tweeter dispersion. Distortion becomes extreme below 50Hz. Its raw 2.71 preference score is weak without a subwoofer, so EQ and careful toe-in are strongly recommended.
Full KRK Classic 5 review and specifications →
| App | No |
|---|---|
| Bass Extension (-3dB) | 60.1Hz (Spinorama/Audio Science Review) |
| Bass Extension (-6dB) | 54.2Hz (Spinorama/Audio Science Review) |
| Bluetooth | No |
| Dimensions | 9.7"H x 7.4"W x 11.2"D (246.4 x 188 x 284.5 mm) |
| Drivers | 5" (127mm) woofer |
| EQ | Yes (Room adjustment) |
| Frequency Response | 56Hz-30KHz (+-3dB) (Manufacturer specified) |
| Inputs | RCA, TRS, XLR |
| Output Power | 50w RMS Per Speaker |
| Spinorama Preference Score | 2.71 without subwoofer; 5.22 with subwoofer |
| Weight | 12.9 lbs / 5.87 kg |
- Links
- Reviews, Comparisons and Sound Samples
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- Audio Science Review Measurements (spinorama.org)
- Reddit Search for KRK Classic 5 Review
- Head-to-Head Comparisons
- KRK Classic 5 vs Edifier MR4
- KRK Classic 5 vs Edifier S2000MKIII
- KRK Classic 5 vs Vanatoo Transparent One Encore Plus
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Airpulse A100: $999.99 Amazon B&H Photo eBay
Pros: Horn-loaded ribbon tweeter (inherited from Airpulse’s flagship 7001 monitor, designed by Phil Jones) paired with a 5” hard-anodized aluminum cone woofer - a distinctive, low-mass driver combination rarely seen below $1,000. Directivity spread is the widest and most controlled of this batch (directivity_spdi_stddev 4.26). A full input set for a desktop system: RCA, USB, optical, coaxial, and Bluetooth, plus a dedicated subwoofer output and an included IR remote.
Cons: On-axis deviation (aad_on_axis 0.498) trails the pricier options in this group, and there’s no app-based EQ or DSP - bass/treble trim is limited to physical rear-panel knobs not reachable from the remote. The compact 5” woofer caps sub-bass extension at 63.0Hz (-3dB) / 53.2Hz (-10dB), the second-shallowest in this batch, effectively expecting an external subwoofer for full-range use. No Wi-Fi streaming (AirPlay/Chromecast) - Bluetooth only.
Full Airpulse A100 review and specifications →
| App | None (physical bass/treble knobs, IR remote) |
|---|---|
| Bass Extension (-10dB) | 53.2Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 63.0Hz (measured, spinorama.org) |
| Bluetooth | Yes (SBC, aptX) |
| Dimensions | 6.3" x 11.1" x 10" (160 x 283 x 255 mm) (6.3 x 11.1 x 10.0 in) each |
| Drivers | Horn-loaded ribbon tweeter, 5" hard-anodized aluminum cone woofer |
| EQ | Yes, rear-panel bass/treble trim knobs |
| Frequency Response | 52Hz - 40kHz |
| Inputs | RCA (aux), USB, optical, coaxial, Bluetooth aptX |
| Output Power | 100W total (40W+40W woofer, 10W+10W tweeter) |
| Weight | 24.3 lbs / 11 kg (24.2 lb) each |
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- Reviews, Comparisons and Sound Samples
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