The Zu Audio Method ranks #103 out of 105 total Large Size Bookshelf Speakers for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.
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#103 Zu Audio Method: $700 Zuaudio eBay
Pros: High-sensitivity design (measured about 90-90.7dB average through the 300Hz-3kHz vocal range), making it easy to drive to loud levels with modest amplifier power. Not a difficult electrical load - minimum impedance around 5.8 ohms, compatible with most 8-ohm-rated amplifiers, though Class A/AB amps should have good ventilation given a 3-ohm minimum EPDR. Verified not to be a defective unit: both speakers in the pair measured consistently with each other, and an independent reviewer’s own measurements of the same model matched the findings here.
Cons: A severe suckout in the 1.5-3kHz range (down as much as 19dB below the mean at its worst) removes attack and clarity from brass, woodwinds, and snares, and gives an overall laid-back, unengaging character. Erratic, inconsistent high-frequency response - alternating between accentuated and subdued at different frequencies - makes cymbals, hi-hats, and sibilant vocal sounds behave unpredictably from track to track. Directivity is poor and inconsistent with frequency, meaning off-axis (sidewall-reflected) energy is actually louder than the direct sound in several bands - a problem that fundamentally cannot be corrected with EQ, since boosting the direct sound would boost the already-too-loud reflections even more. High sensitivity comes at the direct cost of bass extension: F3 of 92Hz and F10 of 56Hz mean essentially no meaningful bass. Despite the high sensitivity, dynamic headroom is poor rather than better as often assumed - distortion in the higher frequencies creates what the reviewer calls an “electronic glare.” Third-order harmonic distortion peaks sharply around 6-7kHz, contributing to an edgy, metallic quality on cymbals and hi-hats, and multitone distortion crosses the reviewer’s 3% threshold. Instantaneous compression testing shows serious dynamic-range issues specifically in the treble (a dip around 2kHz, a peak around 4kHz, and a large dip across 5-7kHz). Vertical radiation has an unusually narrow sweet spot, since the midrange driver beams while the tweeter stays wide, creating a mismatch. Switching to a high-output-impedance amplifier shifts the response by roughly 1-1.5dB in places but doesn’t come close to correcting the fundamental frequency-response problems. Toeing the speakers out reduces some of the on-axis dip’s severity but doesn’t restore a properly immersive soundstage, since off-axis and on-axis response remain too different from each other.
How it compares: Just above it: Ascend CBM-170 SE - $316 cheaper. Just below it: Dayton Audio B652-AIR - $622 cheaper, 4Hz lower bass extension (-3dB).
| Bass Extension (-10dB) | 56Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 92Hz (measured, Erin's Audio Corner) |
| Dimensions | 15"H x 8.7"W x 11"D (381.0 x 222.0 x 280.0 mm) |
| Drivers | 8" coax HE (Eminence/Zu) woofer, Eminence ASD-1001 tweeter |
| Impedance | 8 ohms |
| Sensitivity | 91dB |
| Weight | 12.1 lbs / 5.5 kg |
| Woofer Cabinet | ported, front |
- Links
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