Short answer: the KRK Classic 5. It ranks #30 of 58 powered bookshelf speakers by sound quality at $280; the Audioengine HD6 ranks #41 and costs $817.44, so there is not much of a tradeoff to weigh.
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 Audioengine HD6 offers: Watch for: A bit of an accentuated treble and bass. Slight dip in the midrange.
Buy the KRK Classic 5. It ranks higher for sound quality than the Audioengine HD6 and costs less, so there is no real case for the other one.
Specifications Side By Side
| KRK Classic 5 | Audioengine HD6 | |
|---|---|---|
| Price | $280 | $817.44 |
| Ranked | #30 of 58 in Medium Size Powered Bookshelf Speakers | #41 of 58 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 60.1Hz (Spinorama/Audio Science Review) | - |
| 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) | 11.7"H x 7.2"W x 10"D (298.4 x 184.1 x 254 mm) |
| Frequency Response | 56Hz-30KHz (+-3dB) (Manufacturer specified) | 45Hz-40KHz (-3dB) (Manufacturer specified) |
| Inputs | RCA, TRS, XLR | Bluetooth, Aux, RCA Input, Digital Optical |
| Weight | 12.9 lbs / 5.87 kg | 17.4 lbs / 7.9 kg |
| Drivers | 5" (127mm) woofer | 5.5" (140mm) woofer |
| App | No | No |
| Bluetooth | No | No |
| EQ | Yes (Room adjustment) | No |
| Output Power | 50w RMS Per Speaker | 50w RMS Per Speaker |
| Outputs | - | RCA Output |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- Audioengine A5+ Classic vs Klipsch The Fives
- Edifier R2000DB vs Kali Audio IN-UNF
- Edifier S2000MKIII vs Vanatoo Transparent Zero Plus
- IK Multimedia iLoud MTM vs KRK Classic 5
- IK Multimedia iLoud MTM MKII vs KRK Classic 5
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.
As an eBay Partner, we may be compensated if you make a purchase.
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
- Audio Science Review Measurements More from Audio Science Review →
- DSAUDIO.review: DSAUDIO.review Edifier S1000MKII vs Edifier S2000MKIII sound.DEMO More from DSAUDIOreview →
- DSAUDIO.review: Edifier S2000MKIII vs Edifier S3000PRO Sound & Frequency Response Comparison
- DSAUDIO.review: DSAUDIO.review Focal Alpha 50 EVO vs KRK Classic 5 CL5G3 sound.DEMO
- DSAUDIO.review: DSAUDIO.review JBL 305P MKII vs KRK Classic 5 CL5G3 sound.DEMO
- DSAUDIO.review: DSAUDIO.review KRK Classic 5 CL5G3 vs Yamaha HS5 sound.DEMO
- DSAUDIO.review: DSAUDIO.review KRK Classic 5 CL5G3 vs KRK Rokit 5 RP5G4 sound.DEMO
- 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
- KRK Classic 5 vs Dayton Audio M4
- KRK Classic 5 vs KEF LSX II LT
- KRK Classic 5 vs Topping MA4
- KRK Classic 5 vs Focal Alpha 50 EVO
- KRK Classic 5 vs Edifier R1280DB
- See all 36 comparisons
Audioengine HD6: $817.44 Amazon eBay
Cons: A bit of an accentuated treble and bass. Slight dip in the midrange.
Full Audioengine HD6 review and specifications →
| App | No |
|---|---|
| Bluetooth | No |
| Dimensions | 11.7"H x 7.2"W x 10"D (298.4 x 184.1 x 254 mm) |
| Drivers | 5.5" (140mm) woofer |
| EQ | No |
| Frequency Response | 45Hz-40KHz (-3dB) (Manufacturer specified) |
| Inputs | Bluetooth, Aux, RCA Input, Digital Optical |
| Output Power | 50w RMS Per Speaker |
| Outputs | RCA Output |
| Weight | 17.4 lbs / 7.9 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Audioengine HD6 vs Klipsch The Fives
- Audioengine HD6 vs Pioneer DJ VM-50
- Audioengine HD6 vs Vanatoo Transparent One Encore Plus
- Audioengine HD6 vs Kali Audio IN-UNF
- Audioengine HD6 vs Edifier S2000MKIII
- Audioengine HD6 vs Dayton Audio M4
- Audioengine HD6 vs KEF LSX II LT
- Audioengine HD6 vs IK Multimedia iLoud MTM MKII
- See all 13 comparisons