Vifa XT-300 (XT25TG-30 / 04)

Test Peerless / Tymphany XT25TG-30 / 04 (Vifa XT-300 / K4)

Datasheet © www.heissmann-acoustics.de
Measurements in DIN baffle in 70cm distance at 2,83V. Level scaled to 1m
Vifa XT-300 (XT25TG-30 / 04)An extraordinary tweeter, equipped with a 5mm thick front panel, a 5-hole attachment and a "bead only design" as a membrane.

Vifa / Peerless XT-300 K4 (XT25TG-30/04) sound pressure & impedance (dispersion)

Vifa XT-300 (XT25TG3004) Frequency response and impedance response

Outstanding linear frequency response. Full level from 1,3kHz. Extremely good-natured "roll-off". The efficiency is on average 91,5dB / 2,83V. One copy has a resonance frequency that is 20% higher, but this has no effect in the intended working range. Otherwise congruent course from 1,5 kHz. Very well. At the frequency response you have to look very closely to see whether there are 2 or 3 drivers. Practically congruent course from 600Hz.

Vlt. a little note at this point:

I do not buy any preselected drivers ... With such a result, one might suspect that.

 Vifa / Peerless XT-300 K4 (XT25TG-30 / 04) Sound pressure at angles (15 °, 30 °, 45 °, 60 °)

Vifa Peerless XT-300 (XT25TG3004) Angle Measurements

Very uniform omnidirectional behavior. Somewhat stronger directivity than with 25mm calottes. No criticisms. Recommendation: Tuning linearly to 15 °.

Vifa / Peerless XT-300 K4 (XT25TG-30 / 04)

Vifa Peerless XT-300 (XT25TG3004)

Vifa Peerless XT-300 (XT25TG-30 / 04) Swaying Sonogram

Extremely smooth and fast swinging over all frequencies.

Vifa / Peerless XT-300 K4 (XT25TG-30 / 04) harmonic distortion

Vifa Peerless XT-300 (XT25TG-30 / 04) Harmonic
Gray line: 1%
Graph switches every 3 seconds
Outstandingly low 3rd order distortion. From 1,5kHz <0,1% at all measured levels. The "good-natured" K2 rises relatively sharply below 3kHz. A little bit of "whitening" is built in. In the case of separations> = 2kHz, K2 should still remain below the perceptibility threshold, even at very high levels.

Rating


Frequency response / directional behavior:4.5 5 out of stars
Range:4.5 5 out of stars
Power handling:4.5 5 out of stars
Consisty:5 5 out of stars
Haptics:4 5 out of stars
Price-performance:5 5 out of stars

 Summary


The ring emitter Vifa / Peerless XT-300 K4 (XT25TG-30 / 04) is outstanding in the sum of its properties!

The frequency response is linearly smooth, the omnidirectional response is extremely even and the decay behavior could not be better.

The ring emitter can be used in very level-stable combinations from 2kHz. With "normal" level requirements also lower.

Series spread seems a foreign word for the driver. Furthermore, its intended working range is far outside the region around the resonance frequency that is prone to series fluctuations due to the design of tweeters. It is generally not recommended to separate tweeters> = 2x FR for nothing.

and the whole thing for extremely inexpensive 47 € (RRP) ...

I have installed the XT-300 K / 4 with the SPH-175HQ in the kit Samuel HQ, and I am very pleased with its features.

To the kit Samuel HQ

 

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