Datasheet © heissmann-acoustics.de | |||||||||||||
Measurements in DIN baffle in 50cm distance at 2,83V. Level scaled to 1m. | |||||||||||||
Frequency response 2,83V / m & impedance |
Even frequency response with smooth XCHARXRoll-OffXCHARX. Slight interference around 10kHz.
Due to the waveguide very high efficiency of 95,5dB / 2,83V / m. By thin fluid ferrofluid slightly damped, very symmetrical resonce at 1,1kHz |
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Consisty |
The 4 measured copies run, in the working area, nearly congruent, both in the amplitude, - and impedance response with a maximum deviation of + -0,35dB. | ||||||||||||
Directivity horizontal (0°, 15°, 30°, 45°, 60°)
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Wide dispersion up to ~ 2,5kHz, then rapidly and evenly getting narrower towards the super highs.
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Burst decay |
Overall, very even and rapid burst-decay, minimally delayed in the super high. | ||||||||||||
harmonic distortion (90, 95 & 100dB / m) |
Very low harmonic distortion, at all measured levels> 1,5 kHz
K3 barely exceeds, even at 100 dB / m, the 0,1% mark . K2 remains inaudible. |
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Rating
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ConclusionThe Scan-Speak Discovery H2606 / 920000 is a fine tweeter, which, when used wisely, leaves practically nothing to be desired. Without hesitation, it can be used from 1,5kHz, even with high level requirements. Depending on the application possibly even deeper. Due the somewhat special dispersion this tweeter asks for a mindfull connection to te midwoofer. The H2606 is used in the kit Suzy-Q
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Keyword: 833000
Test Scan-Speak Discovery D2604 / 830000 with WG PCT-300 / WG-300 26mm dome tweeter 4 Ω with waveguide
Datasheet © www.heissmann-acoustics.de | |||||||||||||
Measurements in 20x40cm baffle, 10mm rounded, in 70cm distance at 2,83V. Level scaled to 1m.
The Waveguide was milled with a CNC adapter plate mounted on the tweeter. |
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Directivity horizontal (0°, 15°, 30°, 45°, 60° & 90°) & Impedance... normalized to 0° (sonogram) |
Due to the waveguide system-related symmetrical peak from 1-10kHz. Extremely uniform directivity without significant disturbances. In the main very close to "Constant Directivity". The slight widening around 2,5kHz can be equalized by skillful choice of the midrange and its filtering. |
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Burst decay |
Overall, very smooth and rapid decaying over all frequencies.
Minimal delayed in the super high tones. |
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harmonic distortions (90-105dB / m) |
K3 remains, even at 105dB / m> 1kHz in the range
K2 rises evenly with increasing level and does not exceed the 1% mark by> 1kHz until levels> 100dB. Outstanding! |
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Rating
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ConclusionThe Scan-Speak D2604 / 830000 measures itself at the Waveguide, apart from the ~ 1dB lower efficiency practically identical to the D2604 / 833000. Hence the same conclusion:
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Test Scan-Speak Discovery D2604 / 833000 with WG PCT-300 / WG-300 26mm dome tweeter 4 Ω with waveguide
Datasheet © www.heissmann-acoustics.de | |||||||||||||
Measurements in 20x40cm baffle, 10mm rounded, in 70cm distance at 2,83V. Level scaled to 1m.
The Waveguide was milled with a CNC adapter plate mounted on the tweeter. |
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Directivity horizontal (0°, 15°, 30°, 45°, 60° & 90°) & Impedance... normalized to 0° (sonogram) |
Due to the waveguide, system-induced symmetrical peak from 1-10kHz. Extremely uniform directivity without significant interference. In the main very close to "Constant Directivity". The slight widening around 2,5kHz can be equalized by skillful choice of the midrange and its filtering. |
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Burst decay |
Overall, very smooth and rapid decaying over all frequencies.
Minimal delay in the super high frequency> 15kHz. |
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harmonic distortions (90-105dB / m) |
K3 remains at <xnumx% at="" all="" measured="" levels,="" even="" xnumxdb="" m=""> 105kHz, and is largely independent of the excitation signal.</xnumx%>
K2 rising evenly with increasing level and exceeds the 1% mark appreciably only at levels> 100dB. Outstanding! |
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Rating
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ConclusionThe reader may have noticed one or the other similarity to the Peerless DX25TG09-04 (Vifa XD-270 F/4) with Waveguide ... The Scan-Speak is practically equivalent in all respects. It measures on axis a touch more restless, can play minimal louder, could probably be crossed slightly deeper, . |
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