Klipsch Forte IV vs Triangle Esprit Antal Ez

Last updated: October 9, 2026

Short answer: the Klipsch Forte IV. It ranks #101 of 188 floorstanding speakers by sound quality (rated 4.0/5) at $5,499.98 and is still sold new; the Triangle Esprit Antal Ez ranks #182 (rated 2.5/5) and is discontinued, so it is only an option used.

Klipsch Forte IV vs Triangle Esprit Antal Ez

The Klipsch Forte IV is the more accurate option. Three-way heritage design: a 1” titanium tweeter and 1.75” compression driver for the midrange mated to a 12” woofer, plus a 15” passive radiator for extra bass reinforcement. Its measured preference score, a predictor of how neutral it sounds, is 3.78 against 2.76 for the Triangle Esprit Antal Ez. The catch: Contrary to the classic Klipsch reputation for being forward and bright, this model is actually somewhat recessed in the 1.5-4kHz “presence” region, which can make some tracks sound dull or lacking in detail.

What the Triangle Esprit Antal Ez does well: Predicted in-room response sums rather nicely aside from the resonance and bass issues. The catch: Resonance around 260Hz and a number of other resonances show up on-axis, along with a dip in bass response.

Buy the Klipsch Forte IV. It is rated higher for sound quality; the Triangle Esprit Antal Ez is no longer sold new.

Want more options? Browse the full Passive Home rankings.

Specifications Side By Side

Klipsch Forte IV Triangle Esprit Antal Ez
Price$5,499.98 per pair$1,799 per pair Discontinued
Ranked#101 of 188 in Large Size Floorstanding Speakers#182 of 188 in Large Size Floorstanding Speakers
Bass Extension (-10dB)39Hz (measured, Erin’s Audio Corner)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)82Hz (measured, Erin’s Audio Corner)85Hz (measured, Audio Science Review) - low confidence - on-axis curve shows an unusual notch/dip around 250-300Hz for this floorstanding tower
Sensitivity93.8dB (measured average, Erin’s Audio Corner; manufacturer rates 99dB in-room / ~94dB anechoic)90.7dB (2.83V/1m, measured by Audio Science Review)
Drivers1x 12” (305mm) fiber-composite woofer + 15” passive radiator, 1x 1.75” compression driver midrange on horn, 1x 1” titanium compression tweeter on horn2x 6.5” (160mm) fiberglass cone woofers, 1x 6.5” (160mm) natural cellulose midrange, 1x 1” (25mm) titanium dome tweeter
Weight117.3 lbs (53.2 kg)98.5 lbs (44.7 kg)
Woofer Cabinetpassive radiatorported, front
Impedance8 ohms8 ohms nominal (2.7 ohms minimum, measured by Audio Science Review)
Dimensions36”H x 16.5”W x 13”D (914.4 x 419.1 x 330.2 mm)43.9”H x 11.8”W x 15.7”D (1115.0 x 300.0 x 400.0 mm)
Spinorama Preference Score3.782.76
Spinorama Preference Score with Perfect Sub5.725.37
DIY KitNoNo

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The Two Speakers In Full

Klipsch Forte IV: $5,499.98 per pair Amazon Crutchfield eBay

Klipsch Forte IV ranking card

Same family: the Klipsch Heresy IV (smaller floorstanding, ranked lower, rated 2.3/5), the Klipsch Cornwall IV (larger floorstanding, ranked lower, estimated 2.8/5), the Klipsch La Scala AL6 (larger floorstanding, ranked lower, estimated 2.8/5) and the Klipsch Klipschorn AK7 (larger floorstanding, ranked lower, estimated 3/5).

Pros: Three-way heritage design: a 1” titanium tweeter and 1.75” compression driver for the midrange mated to a 12” woofer, plus a 15” passive radiator for extra bass reinforcement. Genuinely resonance-free cabinet, a clear improvement over the notably boomy, resonant Klipsch Heresy IV in the same lineup. Surprisingly wide, expansive soundstage that beat both the Klipsch Heresy IV and a KEF LS50 Wireless 2 in direct comparison: images occasionally appeared several feet outside the physical speaker location. Deeper bass extension than the Klipsch Heresy IV (F3 of 82Hz, about 10Hz lower). Distortion measures well below 1% at 86dB and stays mostly within 1% even at 96dB. Comes as a factory-matched serial-numbered pair, backed by an unusually generous 10-year warranty. Mostly above 4 ohms impedance, so it’s compatible with AVRs, solid-state, or tube amplifiers. More neutral overall than other Klipsch models the reviewer has tested, making it a reasonable pick for listeners who already like the “Klipsch sound” but want something more balanced. Measured bass extension of 82Hz (-3dB), with a measured sensitivity of 93.8dB.

Cons: Contrary to the classic Klipsch reputation for being forward and bright, this model is actually somewhat recessed in the 1.5-4kHz “presence” region, which can make some tracks sound dull or lacking in detail. A peak around 6kHz reads as sibilant and “painful” when seated exactly on the tweeter axis; sitting a bit above that axis reduces it somewhat. Klipsch’s marketed 99dB sensitivity figure is an in-room rating that assumes 3-6dB of boundary gain: anechoic sensitivity measures closer to 94dB, which the manufacturer does disclose but can still mislead buyers comparing spec sheets. Radiation width isn’t consistent across all frequencies: a noticeable notch around 2-3kHz interrupts otherwise wide dispersion, which can cause a fundamental tone and its harmonics to image in slightly different places in the soundstage. Uses shallow low-pass crossover slopes (despite Klipsch’s steep-crossover marketing, which applies only to the high-pass side), likely contributing to some of the measured dips and possible cone-breakup artifacts. Some compression shows up around the midrange crossover point at very high output (102dB), though likely only audible at extreme volumes. At around $5500/pair, a significant investment, and still needs a subwoofer for material extending below about 50Hz.

Bass Extension (-10dB)39Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)82Hz (measured, Erin’s Audio Corner)
DIY KitNo
Dimensions36”H x 16.5”W x 13”D (914.4 x 419.1 x 330.2 mm)
Drivers1x 12” (305mm) fiber-composite woofer + 15” passive radiator, 1x 1.75” compression driver midrange on horn, 1x 1” titanium compression tweeter on horn
Impedance8 ohms
Sensitivity93.8dB (measured average, Erin’s Audio Corner; manufacturer rates 99dB in-room / ~94dB anechoic)
Spinorama Preference Score3.78
Spinorama Preference Score with Perfect Sub5.72
Weight117.3 lbs (53.2 kg)
Woofer Cabinetpassive radiator

Triangle Esprit Antal Ez: $1,799 per pair Discontinued eBay

Triangle Esprit Antal Ez ranking card

Same family: the Triangle Esprit Titus EZ (bookshelf, rated 3.6/5).

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.

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 KitNo
Dimensions43.9”H x 11.8”W x 15.7”D (1115.0 x 300.0 x 400.0 mm)
Drivers2x 6.5” (160mm) fiberglass cone woofers, 1x 6.5” (160mm) natural cellulose midrange, 1x 1” (25mm) titanium dome tweeter
Impedance8 ohms nominal (2.7 ohms minimum, measured by Audio Science Review)
Sensitivity90.7dB (2.83V/1m, measured by Audio Science Review)
Spinorama Preference Score2.76
Spinorama Preference Score with Perfect Sub5.37
Weight98.5 lbs (44.7 kg)
Woofer Cabinetported, front