The Gallo Acoustics Nucleus Micro ranks #125 out of 177 total Medium Size Bookshelf Speakers for sound quality. See all Passive Home rankings for every top pick.
Brand: Gallo Acoustics
Prices on this page were last checked October 14, 2026 at 2:38 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.
As an eBay Partner, we may be compensated if you make a purchase.
#125 Gallo Acoustics Nucleus Micro: $600 per pair Discontinued eBay
Pros: A tiny spherical satellite with a single full-range driver, easy to hide on a shelf or wall, with even directivity for its size (3.71dB variation) in Archimago’s measurements. Measured bass extension of 274.9Hz (-3dB).
Cons: Discontinued and replaced by the Micro SE. Bass stops at 275Hz (-3dB), so it only works with a subwoofer, and the in-room response is very rough (0.12 smoothness), scoring -0.64 on its own and 4.40 with an ideal subwoofer.
| Bass Extension (-10dB) | about 177.4Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
|---|---|
| Bass Extension (-3dB) | 274.9Hz (measured, Archimago) |
| DIY Kit | No |
| Drivers | 3” full-range driver in a spherical steel enclosure |
| Spinorama Preference Score | -0.64 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 4.40 (spinorama.org) |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the Gallo Acoustics Nucleus Micro measures across the audible range. A flatter listening window (the sound arriving straight at you) is more neutral: peaks sound forward or harsh, dips sound recessed. The estimated in-room response adds what a typical room does, and there a gentle, even tilt down toward the treble is ideal. Both curves are shifted so their 300 Hz to 3 kHz average sits at 0 dB.
Measurement data: spinorama.org, measured by an independent reviewer.
EQ for a Neutral Response
Flattens the measured listening window from the Gallo Acoustics Nucleus Micro's own bass extension up to 16 kHz. Set a preamp of -3.1 dB, then add these filters to any parametric equalizer in the signal path: the speaker's app or DSP if it has parametric EQ, a miniDSP, Equalizer APO or Wavelet. Boosts are kept to 3 dB, and EQ cannot fix how evenly the speaker spreads sound off-axis, which is why some speakers gain more than others. Predicted preference score with this EQ: -0.1, up from -0.6 (4.9 with an ideal subwoofer, up from 4.4). Calculated by Speaker Ranking from the spinorama measurements above.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Peak | 602 Hz | +1.8 dB | 1.12 |
| Peak | 1,383 Hz | -1.6 dB | 4.00 |
| Peak | 2,585 Hz | -3.1 dB | 2.18 |
| Peak | 4,565 Hz | +1.1 dB | 4.00 |
| Peak | 7,687 Hz | -2.6 dB | 4.00 |
| Peak | 15,434 Hz | +3.0 dB | 4.00 |