Short answer: both have a serious flaw, so pick the one whose weakness you can live with, though neither ranks well in its class. The 104 relies on heavy internal EQ to compensate for raw drivers that measure with no bass, no low mids and highly irregular highs on their own. The NHT Pro M-00 offers a cast aluminum-zinc enclosure that doubles as a heatsink, RCA and XLR/TRS inputs and a voicing switch, but it has a sudden suck-out in the upper bass that affects many commonly used notes. Both are rated below 3.0/5 among the 68 powered bookshelf speakers, so if sound quality matters, consider the JBL 305P MKII instead, ranked #13 at $289.
What the JBL One Series 104 offers: Heavy internal EQ from the amplifier meaningfully compensates for otherwise poor raw driver measurements. 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.
Buy the JBL One Series 104 only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the JBL 305P MKII instead.
Still deciding? The full Powered Home rankings cover every ranked option.
Specifications Side By Side
| JBL One Series 104 | NHT Pro M-00 | |
|---|---|---|
| Price | $129 per pair Discontinued | $498 per pair (used market; originally $249 each), Discontinued |
| Ranked | #64 of 68 in Medium Size Powered Bookshelf Speakers | #67 of 68 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 45Hz with the amplifier’s DSP bass boost active (measured, Audio Science Review) | 83.3Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 35Hz with the amplifier’s DSP bass boost active (measured, Audio Science Review) | 59.7Hz (measured, Audio Science Review) |
| Drivers | 4.5” coaxial low-frequency driver, 0.75” soft dome tweeter | 1” ferrofluid-cooled fabric dome tweeter, 4.5” treated paper-cone woofer |
| Dimensions | 9.7H x 6W x 4.9D in (per manufacturer, 104-BT) | 9H x 5.7W x 7.3D in |
| Weight | 4.5 lbs (2.06 kg) (master), 3.8 lbs (1.73 kg) (slave) | 14 lbs (6.35 kg) each |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 98Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 60W total Class D (30W per speaker) | 75W RMS continuous, 150W peak (per speaker) |
| App | No | No |
| EQ | Yes (fixed, amplifier-applied) | - |
| DSP | Yes | No |
| Inputs | 1/4” TRS, RCA, 3.5mm Aux | RCA, XLR/TRS |
| XLR Input | No | Yes |
| RCA Input | Yes | Yes |
| TRS Input | Yes | Yes |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | Yes | No |
| Bluetooth | No | No |
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Prices on this page were last checked October 2, 2026 at 10:18 PM 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
JBL One Series 104: $129 per pair Discontinued eBay
Pros: ASR’s powered-system measurement gives -3dB bass around 72Hz, and the compact coaxial layout is convenient for a small desk. Its internal equalization is part of the working speaker and should be included when assessing it, rather than judging the passive drivers with that correction bypassed. Measured bass extension of 45Hz (-3dB).
Cons: Even with the active system measured properly, scores are only 1.36 standalone and 4.08 with an ideal subwoofer. The 4.9dB midrange span and a high-frequency cancellation around 7.4kHz indicate significant unevenness; the review also found some vocals bright and irritating. These are results for the original 104, not a verification of the later 104-BT. Discontinued.
Full JBL One Series 104 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 60W total Class D (30W per speaker) |
| App | No |
| Aux Input | Yes |
| 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) |
| Bluetooth | No |
| Coaxial Input | No |
| 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) |
| HDMI Input | No |
| Inputs | 1/4” TRS, RCA, 3.5mm Aux |
| Optical Input | No |
| RCA Input | Yes |
| TRS Input | Yes |
| USB Input | No |
| Weight | 4.5 lbs (2.06 kg) (master), 3.8 lbs (1.73 kg) (slave) |
| XLR Input | No |
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NHT Pro M-00: $498 per pair (used market; originally $249 each) Discontinued eBay
Pros: A sturdy metal enclosure, analog studio/consumer connections and selectable nearfield/farfield voicing give it practical features as an older powered monitor. Measured bass extension of 83.3Hz (-3dB).
Cons: The review identifies a pronounced upper-bass cancellation, treble peaks and problematic vertical response, and strongly prefers the JBL 305P MKII in direct listening. Discontinued.
Full NHT Pro M-00 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 75W RMS continuous, 150W peak (per speaker) |
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 59.7Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 83.3Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | No |
| DSP | No |
| Dimensions | 9H x 5.7W x 7.3D in |
| Drivers | 1” ferrofluid-cooled fabric dome tweeter, 4.5” treated paper-cone woofer |
| Frequency Response | 98Hz - 20kHz (Manufacturer specified) |
| HDMI Input | No |
| Inputs | RCA, XLR/TRS |
| Optical Input | No |
| RCA Input | Yes |
| TRS Input | Yes |
| USB Input | No |
| Weight | 14 lbs (6.35 kg) each |
| XLR Input | Yes |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons