Short answer: the KRK Classic 5 for better sound quality, the JBL One Series 104 for the lower price. The KRK Classic 5 ranks #30 of 58 powered bookshelf speakers at $280. The JBL One Series 104 ranks #56 at $129, $151 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 JBL One Series 104 offers: Heavy internal EQ from the amplifier meaningfully compensates for otherwise poor raw driver measurements, and casual listening on undemanding content sounded like a scaled-down JBL 305P Mark II - well above typical computer-speaker quality for the price. Solid build quality for a $90-130 powered pair with dual built-in amplifiers. Watch for: Measuring the passive drivers alone (bypassing the amplifier’s EQ) showed “no bass, no low mids, and highly irregular highs” - a disaster by the reviewer’s description. Even with the amplifier’s correction applied, there’s an on-axis cancellation around 7.4kHz from the coaxial driver design, and JBL’s own published frequency-response graph uses a compressed 95dB vertical scale that hides real deviations the reviewer’s 50dB-scale CEA-2034 measurement reveals. Female vocals and “lisping” content became bright and annoying; the reviewer’s verdict was “can’t recommend it though if you want a true hi-fi experience.”
Buy the KRK Classic 5 if sound quality matters more than the price. Buy the JBL One Series 104 if the price matters more than sound quality.
If sound quality matters at all to you, skip the JBL One Series 104. It ranks near the bottom of the 58 powered bookshelf speakers, so look higher up the list instead.
Specifications Side By Side
| KRK Classic 5 | JBL One Series 104 | |
|---|---|---|
| Price | $280 | $129 |
| Ranked | #30 of 58 in Medium Size Powered Bookshelf Speakers | #56 of 58 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 60.1Hz (Spinorama/Audio Science Review) | 45Hz with the amplifier’s DSP bass boost active (measured, 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) | 9.7H x 6W x 4.9D in (per manufacturer, 104-BT) |
| Frequency Response | 56Hz-30KHz (+-3dB) (Manufacturer specified) | 60Hz - 20kHz (Manufacturer specified) |
| Inputs | RCA, TRS, XLR | - |
| Weight | 12.9 lbs / 5.87 kg | 4.5 lbs / 2.06 kg (master), 3.8 lbs / 1.73 kg (slave) |
| Drivers | 5" (127mm) woofer | 4.5" coaxial low-frequency driver, 0.75" soft dome tweeter |
| App | No | No |
| Bluetooth | No | - |
| EQ | Yes (Room adjustment) | Yes (fixed, amplifier-applied) |
| Output Power | 50w RMS Per Speaker | 60W total Class D (30W per speaker) |
| Bass Extension (-10dB) | - | 35Hz with the amplifier’s DSP bass boost active (measured, Audio Science Review) |
| DSP | - | Yes |
Related Speaker Comparisons
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- Focal Alpha 50 EVO vs Edifier MR4
- Edifier MR4 vs JBL 305P MKII
- Adam Audio T5V vs Edifier MR4
- KRK Classic 5 vs Edifier MR4
- KRK Classic 5 vs Edifier R1280T
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
- Audio Science Review Measurements More from Audio Science Review →
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- 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
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- KRK Classic 5 vs Edifier MR4
- KRK Classic 5 vs Edifier S2000MKIII
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JBL One Series 104: $129 Amazon eBay
Pros: Heavy internal EQ from the amplifier meaningfully compensates for otherwise poor raw driver measurements, and casual listening on undemanding content sounded like a scaled-down JBL 305P Mark II - well above typical computer-speaker quality for the price. Solid build quality for a $90-130 powered pair with dual built-in amplifiers.
Cons: Measuring the passive drivers alone (bypassing the amplifier’s EQ) showed “no bass, no low mids, and highly irregular highs” - a disaster by the reviewer’s description. Even with the amplifier’s correction applied, there’s an on-axis cancellation around 7.4kHz from the coaxial driver design, and JBL’s own published frequency-response graph uses a compressed 95dB vertical scale that hides real deviations the reviewer’s 50dB-scale CEA-2034 measurement reveals. Female vocals and “lisping” content became bright and annoying; the reviewer’s verdict was “can’t recommend it though if you want a true hi-fi experience.”
Full JBL One Series 104 review and specifications →
| App | No |
|---|---|
| Bass Extension (-10dB) | 35Hz with the amplifier's DSP bass boost active (measured, Audio Science Review) |
| Bass Extension (-3dB) | 45Hz with the amplifier's DSP bass boost active (measured, Audio Science Review) |
| DSP | Yes |
| Dimensions | 9.7H x 6W x 4.9D in (per manufacturer, 104-BT) |
| Drivers | 4.5" coaxial low-frequency driver, 0.75" soft dome tweeter |
| EQ | Yes (fixed, amplifier-applied) |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| Output Power | 60W total Class D (30W per speaker) |
| Weight | 4.5 lbs / 2.06 kg (master), 3.8 lbs / 1.73 kg (slave) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- JBL One Series 104 vs NHT Pro M-00
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