Short answer: the Triangle Esprit Antal Ez, though neither ranks well in its class. It ranks #70 of 73 floorstanding speakers by sound quality (rated 2.5/5); the Bose 901 Series V ranks #73 (rated 1.9/5). Both are rated below 3.0/5 among the 73 floorstanding speakers; for better sound, the MoFi SourcePoint V10 Master Edition ranks #3 at $7,995.
What the Triangle Esprit Antal Ez does well: Predicted in-room response sums rather nicely aside from the resonance and bass issues. The tradeoff: Resonance around 260Hz and a number of other resonances show up on-axis, along with a dip in bass response.
What the Bose 901 Series V does well: Historically distinctive direct/reflecting architecture uses eight rear-firing and one front-firing full-range drivers to create a very large, room-filling presentation. The tradeoff: Even with the required EQ, Erin measured only about 81dB sensitivity, grossly non-flat response, numerous impedance/resonance irregularities and very high distortion.
One note: the Triangle Esprit Antal Ez is discontinued and no longer widely available new.
Buy the Triangle Esprit Antal Ez. It is rated higher for sound quality than the Bose 901 Series V.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| Triangle Esprit Antal Ez | Bose 901 Series V | |
|---|---|---|
| Price | $1799 per pair Discontinued | Discontinued |
| Ranked | #70 of 73 in Large Size Floorstanding Speakers | #73 of 73 in Large Size Floorstanding Speakers |
| Bass Extension (-3dB) | 85Hz (measured, Audio Science Review) - low confidence - on-axis curve shows an unusual notch/dip around 250-300Hz for this floorstanding tower | 55.8Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 62Hz (measured, Audio Science Review) - low confidence - on-axis curve shows an unusual notch/dip around 250-300Hz for this floorstanding tower | 34.5Hz (measured, Erin’s Audio Corner) |
| Drivers | 2x 6.5” (160mm) fiberglass cone woofers, 1x 6.5” (160mm) natural cellulose midrange, 1x 1” (25mm) titanium dome tweeter | Nine full-range drivers: eight rear-firing, one front-firing |
| Weight | 98.5 lbs (44.7 kg) | 35.3 lbs (16 kg) each |
| Sensitivity | 90.7dB (2.83V/1m, measured by Audio Science Review) | Approximately 81dB/2.83V/1m with tested EQ setting (measured, Erin’s Audio Corner) |
| Impedance | 8 ohms nominal (2.7 ohms minimum, measured by Audio Science Review) | 6.2 ohms minimum (measured, Erin’s Audio Corner) |
| Dimensions | 43.9”H x 11.8”W x 15.7”D (1115.0 x 300.0 x 400.0 mm) | 21”H x 21”W x 12.6”D (533.4 x 533.4 x 320.7 mm) |
| Woofer Cabinet | ported, front | - |
| Spinorama Preference Score | 2.76 | 0.43 |
| Spinorama Preference Score with Perfect Sub | 5.37 | 2.11 |
| DIY Kit | No | No |
| Bass Extension | - | Strongly dependent on supplied active equalizer and room (measured, Erin’s Audio Corner) |
| DSP | - | External analog active equalizer required |
Related Speaker Comparisons
More worthwhile head-to-heads for Triangle Esprit Antal Ez:
- KEF Reference 203 vs Triangle Esprit Antal Ez
- Revel Concerta2 F35 vs Triangle Esprit Antal Ez
- JBL Studio 698 vs Triangle Esprit Antal Ez
- Klipsch Forte IV vs Triangle Esprit Antal Ez
- Polk T50 vs Triangle Esprit Antal Ez
Prices on this page were last checked September 30, 2026 at 2:57 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.
The Two Speakers In Full
Triangle Esprit Antal Ez: $1799 per pair Discontinued eBay
Pros: Predicted in-room response sums rather nicely aside from the resonance and bass issues. Horizontal beamwidth of about ±50 degrees is reasonably controlled. Measured bass extension of 85Hz (-3dB), with a measured sensitivity of 90.7dB.
Cons: Resonance around 260Hz and a number of other resonances show up on-axis, along with a dip in bass response. Two distinct distortion sources (one around 250-300Hz, another around 3-4kHz) already cross the reviewer’s audibility threshold even at moderate output, and get much worse at 96dB SPL/1m, where distortion broadly exceeds 50% relative level across large parts of the spectrum. Directivity is not great overall. The reviewer does not recommend it. Discontinued.
Full Triangle Esprit Antal Ez review and specifications →
| Bass Extension (-10dB) | 62Hz (measured, Audio Science Review) - low confidence - on-axis curve shows an unusual notch/dip around 250-300Hz for this floorstanding tower |
|---|---|
| Bass Extension (-3dB) | 85Hz (measured, Audio Science Review) - low confidence - on-axis curve shows an unusual notch/dip around 250-300Hz for this floorstanding tower |
| DIY Kit | No |
| Dimensions | 43.9”H x 11.8”W x 15.7”D (1115.0 x 300.0 x 400.0 mm) |
| Drivers | 2x 6.5” (160mm) fiberglass cone woofers, 1x 6.5” (160mm) natural cellulose midrange, 1x 1” (25mm) titanium dome tweeter |
| Impedance | 8 ohms nominal (2.7 ohms minimum, measured by Audio Science Review) |
| Sensitivity | 90.7dB (2.83V/1m, measured by Audio Science Review) |
| Spinorama Preference Score | 2.76 |
| Spinorama Preference Score with Perfect Sub | 5.37 |
| Weight | 98.5 lbs (44.7 kg) |
| Woofer Cabinet | ported, front |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Triangle Esprit Antal Ez vs JBL Studio 590
- Triangle Esprit Antal Ez vs Sony SS-CS3
- Triangle Esprit Antal Ez vs Rockville RockTower 68B
- Triangle Esprit Antal Ez vs JBL Stage 2 280F
- Triangle Esprit Antal Ez vs Magnepan LRS+
- Triangle Esprit Antal Ez vs Infinity Reference 253
- Triangle Esprit Antal Ez vs Focal Aria Evo X N°2
- Triangle Esprit Antal Ez vs Polk T50
- See all 12 comparisons
Bose 901 Series V Discontinued Amazon eBay
Pros: Historically distinctive direct/reflecting architecture uses eight rear-firing and one front-firing full-range drivers to create a very large, room-filling presentation. Erin measured a benign 6.2-ohm minimum impedance, so the raw electrical load is easier than many modern four-ohm speakers. The supplied active equalizer offers user-adjustable tonal balance and is integral to obtaining usable bandwidth. Measured bass extension of 55.8Hz (-3dB), with a measured sensitivity of 81dB.
Cons: Even with the required EQ, Erin measured only about 81dB sensitivity, grossly non-flat response, numerous impedance/resonance irregularities and very high distortion. Output above roughly 90-95dB at his seat became audibly poor; multitone testing reached only about 98dB before the distortion limit. The reflection-dominant radiation prevents precise imaging and makes results strongly room-dependent. It requires the proprietary equalizer and substantial amplifier power despite its benign impedance. Discontinued.
Full Bose 901 Series V review and specifications →
| Bass Extension | Strongly dependent on supplied active equalizer and room (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-10dB) | 34.5Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 55.8Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| DSP | External analog active equalizer required |
| Dimensions | 21”H x 21”W x 12.6”D (533.4 x 533.4 x 320.7 mm) |
| Drivers | Nine full-range drivers: eight rear-firing, one front-firing |
| Impedance | 6.2 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | Approximately 81dB/2.83V/1m with tested EQ setting (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 0.43 |
| Spinorama Preference Score with Perfect Sub | 2.11 |
| Weight | 35.3 lbs (16 kg) each |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Bose 901 Series V vs JBL Studio 590
- Bose 901 Series V vs Sony SS-CS3
- Bose 901 Series V vs Børresen X3
- Bose 901 Series V vs JBL Stage 2 280F
- Bose 901 Series V vs Magnepan LRS+
- Bose 901 Series V vs Infinity Reference 253
- Bose 901 Series V vs Focal Aria Evo X N°2
- Bose 901 Series V vs Polk T50
- See all 24 comparisons