Short answer: both are discontinued, so this only matters if you are buying used. Used, the Monolith Encore T6 is the better pick: it ranks #127 of 228 floorstanding speakers by sound quality (rated 4.0/5), against #137 (rated 3.9/5) for the Monolith THX-365T. If you want one new, the Revel Concerta2 F35 ranks #31 at $900.
The Monolith Encore T6 is the more accurate, deeper-bass pick. A heavily braced tower with three woofers and a waveguide tweeter, built for clean home theater output with a subwoofer. Its measured preference score, a predictor of how neutral it sounds, is 4.57 against 3.83 for the Monolith THX-365T. Its bass reaches about 68Hz before falling 3dB, against 84Hz for the Monolith THX-365T. Watch for: Despite its size, Erin measured F3 around 68Hz, so the tower does not eliminate the need for a subwoofer.
What the Monolith THX-365T does well: A versatile home theater tower with a coaxial midrange and tweeter, a built in Atmos module and THX certification. Watch for: Erin measured F3 at 84Hz (F10 roughly 40Hz), so it categorically needs a subwoofer.
Buy the Monolith Encore T6 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 Revel Concerta2 F35 instead.
Looking for alternatives? See the complete Passive Home rankings.
Measured Differences
- Bass depth: the Monolith Encore T6 reaches 31.1 Hz (10 dB down) against 40 Hz for the Monolith THX-365T, about half an octave deeper. You hear more of the lowest bass notes and kick drums.
- Tonal accuracy above the bass: with a subwoofer taking the low end, the Monolith THX-365T scores 6.9 against 6.5 for the Monolith Encore T6 on the Spinorama preference scale. Its frequency response and off-axis sound are smoother, so voices and instruments sound closer to the recording.
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Specifications Side By Side
| Monolith Encore T6 | Monolith THX-365T | |
|---|---|---|
| Price | $800 per pair Discontinued | $1,000 per pair Discontinued |
| Ranked | #127 of 228 in Large Size Floorstanding Speakers | #137 of 228 in Large Size Floorstanding Speakers |
| Bass Extension (-3dB) | ~68Hz (measured, Erin’s Audio Corner) | 84Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 31.1Hz (measured, Erin’s Audio Corner) | ~40Hz (measured, Erin’s Audio Corner) |
| Sensitivity | 87.8dB/2.83V/1m (manufacturer) | 88.6dB/2.83V/1m (measured, Erin’s Audio Corner) |
| Impedance | 4 ohms nominal | 4 ohms nominal; nearly 3 ohms minimum (measured, Erin’s Audio Corner) |
| Drivers | Three 6.5-inch pulp woofers; 25mm waveguided silk dome | Dual 6.5-inch woofers; 2-inch coaxial midrange/1-inch dome; 5.25-inch Atmos coaxial |
| Dimensions | 40H x 7.9W x 13.8D inches | 22.9”H x 9.7”W x 10.8”D (581 x 246 x 275 mm) (without grille) |
| Weight | 49.2 lbs (22.3 kg) each | 28.4 lbs (12.9 kg) each |
| Spinorama Preference Score | 4.57 | 3.83 |
| Spinorama Preference Score with Perfect Sub | 6.45 | 6.90 |
| DIY Kit | No | No |
| Enclosure | - | Sealed |
Where the Ratings Come From
- Monolith Encore T6: Spinorama.org measurements and reviews by Erin’s Audio Corner video.
- Monolith THX-365T: Spinorama.org measurements and reviews by Erin’s Audio Corner video.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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