Triangle Titus EZ spinorama measurements (CTA-2034)

[Ageve]

Here are some measurements of the Triangle Esprit Titus EZ bookshelf speaker.

The current price in Sweden is 8 250 SEK (853 USD) / pair (10 490 SEK / 1085 USD for glossy finish).

Specifications:

Bandwidth (+/- 3dB): 55 Hz - 22 000 Hz
Sensitivity (dB/W/m): 90 dB
Crossover frequency: 3100 Hz
Dimensions (W x H x D): 168 mm x 305 mm x 267 mm
Tweeter: TZ2500 horn tweeter with 25 mm titanium dome
Midwoofer: 13 cm ”small pleat suspension” with natural cellulose pulp membrane
Nominal impedance: 8 ohms
Minimum impedance: 3.8 ohms

I couldn’t find any recommendations for listening height, but I got the smoothest response 30 mm below tweeter axis, so that’s what I used for the spin (comparison is attached for those who are interested).

My measurements are quasi-anechoic, with nearfield port+woofer, corrected for baffle edge diffraction, combined with gated measurements at 1m distance (1m vs 2m comparison is attached as well), at 5 degree increments.

CTA-2034 data:

Overall response and directivity index is not too bad, but there’s a resonance at 800 - 1000 Hz, and tweeter issues at 4 - 6 kHz.

Early reflections are quite messy:

Estimated in-room response:

Horizontal directivity:

0-90 deg:

Vertical directivity:

0-90 deg:

On-axis response:

Mostly within +/- 1.5 dB, except for the resonance.

Distortion:

High distortion at 1-2 kHz. Better at 76 dB SPL, but still quite bad:

Nearfield measurements show problems at 800-1000 Hz as well, and a peak (cone breakup?) at 5 kHz.

In-room response at 4m (ERB smoothing) matches the estimated in-room response > 400 Hz as expected:

The only other measurement of this speaker i could find, was from Audio.com.pl. They don’t apply correction for baffle edge diffraction, but after applying my correction < 400 Hz, the response is a good match up to 3 kHz.

I don’t know what was going on with their speaker above that, but the interesting thing is that the 800-1000 Hz peak looks very similar to my measurements. In other words, my speaker isn’t broken. Well, both could be broken of course, but it's perhaps less likely.

TRIANGLE Titus EZ

Każdy komponent jest zaprojektowany, obliczony i opracowany na podstawie technicznych innowacji oraz rozwiązań będących wyłącznie w dyspozycji ...

audio.com.pl

Subjective opinion:

The resonance is audible, making female vocals sound a bit ”shouty”. It was quite annoying in the chorus of Alison Krauss - Dream of Me, when she sings, well… ”dream of me”.

There’s also some tweeter sharpness, with pronounced ”s-sounds” and an overall slightly ”odd” sound. It’s hard to describe, but it kind of sounds a bit like the tweeter looks, like a trumpet.

It’s not horrible though. Overall, it sounds better than the B&W 686 S2 i measured a while ago, but my Infinity Primus 150, with the EQ by @Maiky76 applied sounds much better.

 

[thewas]

Thank you for another interesting review, most measurements (especially the horizontal directivity) look better than I had expected and thus that 900 Hz peak can be easily corrected with PEQ or even a notch filter in the passive crossover.

 

[Ageve]

Thank you for another interesting review, most measurements (especially the horizontal directivity) look better than I had expected and thus that 900 Hz peak can be easily corrected with PEQ or even a notch filter in the passive crossover.

Yep. The estimated (and actual) in-room response is quite uneven above 900 Hz as well though, but as you said, directivity is not too bad. I'll try EQing it tomorrow.

 

[Maiky76]

Here is my take on the EQ.
Please report your findings, positive or negative!

For the score rational your journey starts here
Explanation for the sub score
The following EQs are “anechoic” EQs to get the speaker right before room integration.
If you able to implement these EQs you must add EQ at LF for room integration, that is usually not optional… see hints there.

The raw data with corrected ER and PIR:

Score no EQ: 4.5
With Sub: 7.3

Spinorama with no EQ:

• Pretty decent
• Limited LF
• Peak around 900Hz?

EQ design:
I have generated two EQs. The APO config files are attached.

• The first one, labelled, LW is targeted at making the LW flat
• The second, labelled Score, starts with the first one and adds the score as an optimization variable.
• The EQs are designed in the context of regular stereo use i.e. domestic environment, no warranty is provided for a near field use in a studio environment although the LW might be better suited for this purpose.

Score EQ LW: 5.7
with sub: 8.3

Score EQ Score: 6.1
with sub: 8.6

Spinorama EQ LW

Spinorama EQ Score

Zoom PIR-LW-ON

Regression - Tonal

Radar no EQ vs EQ score
Small improvements?

Adding one more BQ helps more than I thought

Score no EQ: 4.5
With Sub: 7.3

Spinorama with no EQ:
Score EQ LW: 5.7
with sub: 8.3

Score EQ Score: 6.1
with sub: 8.6

Score EQ Score+: 6.4
with sub: 8.9

 

[kemmler3D]

Solid review, thanks for doing it! This does look better than I expected but still with some pretty distinct problems, as you note. Weird that the cone breakup seems to be maybe audible? Could have been fixed by a steeper crossover maybe...

 

[Sokel]

Boy, that 3kHz-6kHz bump should come with a warning in flashing neon colors.
I got the round headache just looking at it.

Thanks for the review!

 

[Karmacoma]

Thanks for the review! Measurements show well what that Triangle spirit is. Always found their speakers enjoyable but always ''showing off'' a bit too much (got to listen to their first models since I was living in the region of production when it was a smaller company, it was quite popular with the locals) .

 

[Ageve]

Here is my take on the EQ.
Please report your findings, positive or negative!

Thanks!

I did a quick measurement in my living room, with EQ Score applied. Ignore < 400 Hz (old port+woofer measurement used).

The small difference at 5 kHz is probably just slightly different tweeter height. There's a couple of dB variation 30 mm over/under tweeter axis, and it was probably a bit off compared to the spin.

I'm listening to it now. Female vocals are much more enjoyable without the 900 Hz peak. The sound is a lot nicer overall, but still quite localized (small soundstage/halo around the speaker). There's also still a hint of the "trumpet" sound (could be the distortion, perhaps?).

 

[amirm]

Very nice! Promoted to home page....

 

[Matias]

Not bad, would be good a couple of years ago. But nowadays we are spoiled with the F6B for the same price, then this Triangle Titus EZ is not so good anymore.

'AsciLab F6B Bookshelf Speaker Review'

Jun 6, 2025

This is a review, listening tests and detailed measurements of the AsciLab F6B stand mount speaker. It was sent to me by the company and costs US $835 for a pair (shipping included).

In black, the F6B seems formal with a very clean design. It feels solid with sense of precision. Compared to its F6Bs sibling which I just reviewed, we now have a passive radiator in the back which should extend the low frequency response:

Let's measure it with our Klippel Near-field Scanner and see what we get (company measurements correlate with mine).

AsciLab F6B...

• amirm
• Replies: 580
• Forum: Speaker Reviews, Measurements and Discussion

• 

 

[Multicore]

Splendid work, @Ageve Thank you!

Could you add a link in the OP to a post that details your technical methods for obtaining the measurements?

I was never in any danger of buying these. This is the time first I've heard of the brand. From your photo I'd say they look like loudspeakers. And judging from your measurements I'd say they probably sound like loudspeakers too ;>

 

[Ageve]

Splendid work, @Ageve Thank you!

Could you add a link in the OP to a post that details your technical methods for obtaining the measurements?

I was never in any danger of buying these. This is the time first I've heard of the brand. From your photo I'd say they look like loudspeakers. And judging from your measurements I'd say they probably sound like loudspeakers too ;>

Thanks!

I'm following this guide, for quasi-anechoic spins:

N

'How to make quasi-anechoic speaker measurements/spinoramas with REW and VituixCAD'

Mar 29, 2021

Quasi-anechoic measurements are a way to capture the 'real' frequency response of a speaker without the influence of a room. They are called 'quasi-anechoic' because they have the potential to get you really close to the results one might achieve with a non-reflective environment like an anechoic chamber or using a device like the Klippel Near-Field Scanner (NFS). Anechoic measurements are essential for evaluating the sound of a loudspeaker using data, as they tell you more about the sound of the speaker than an in-room measurement.

This guide is designed to help you make simple...

• napilopez
• Replies: 354
• Forum: Speaker Reviews, Measurements and Discussion

• 

There are a few pictures in this thread. I've since upgraded to a much better test stand:

'Revel M16 Spinorama measurements (CTA-2034)'

Nov 10, 2024

Revel M16 is a 2-way bookshelf speaker made by Revel.

Just kidding. This is a test to see how close quasi-anechoic spins are to Klippel NFS, and Harman's own spinoramas.

These measurements were done in-room (in my garage, 3m ceiling). The weather was too cold and windy for outdoor measurements. I'll post pictures of the measurement setup tomorrow.

Equipment used:
miniDSP UMIK-2 (calibrated)
SPDIF out from PC to Denon AVR-4306 + Rotel RB-1590 (playback)
Macbook M1 Pro (REW V5.31.3, measurement)
Homemade speaker turntable
Mic mounted in a metal pipe, 140 cm from the mic stand (to avoid...

• Ageve
• Replies: 9
• Forum: Speaker Reviews, Measurements and Discussion

• 

 

[Laszlo Cravensworth]

Thanks for the hard work!

 

[Toni Mas]

Not surprised at all. The sucess story of the Titus range and the Triangle brand itself can only be understood considering what similar brands and stuff owe to audio magazines like the french La Nouvelle Revue du Son...

Pd: I am owner of a pair of one of the first versions of these Titus, built around cheapo Audax drivers and more than 20 years old... Nothing to call home about...

 

[DSJR]

What is it about these fancy boxes that seem to have major issues at around 1kHz for whastever reason (surround, port issues and so on)? One thing I did learn from old-school designers way back when, is that it's better not to have narrow peaks like this, but dips are apparently less audible, so in this case, I gather that a shallow scoop around the 900Hz peak to lessen its effect may actually 'sound' better - one situation where listening and tweaking can give a better subjective effect even if the measurements aren't improved.

 

[DMill]

Looks like a nice find to me. If 90dB sensitivity is real especially nice. If you love tube amps, it might fit the bill. With some EQ to tame it down a bit how can you say it sucks?

 

[Karmacoma]

Looks like a nice find to me. If 90dB sensitivity is real especially nice. If you love tube amps, it might fit the bill. With some EQ to tame it down a bit how can you say it sucks?

They're sold for 450€/pair as we speak in France. Not so bad for the price indeed.

 

[Toni Mas]

Looks like a nice find to me. If 90dB sensitivity is real especially nice. If you love tube amps, it might fit the bill. With some EQ to tame it down a bit how can you say it sucks?

If these 90dB are real (and surely are not...), it is probably what makes such a small speaker sound so thin to me. For a more balanced sound the 80+ of the bbc 5" clones is a much more realistic target...

 

[amirm]

Thanks for the hard work!

I complain about the work involved in measuring a speaker with Klippel NFS. But that is nothing compared to the manual process here! Definitely a labor of love.

 

[Ageve]

Looks like a nice find to me. If 90dB sensitivity is real especially nice. If you love tube amps, it might fit the bill. With some EQ to tame it down a bit how can you say it sucks?

You're right. It doesn't suck, but the competition is strong.

The cabinet feels solid and well built. Port sound is clean, bass distortion is quite low for such a small speaker (down to 50 Hz), and horizontal directivity is decent as well.

But there are issues. The main one being that 900 Hz resonance, but also a cone breakup at 5 kHz, and quite high distortion at 1-2 kHz.