Scan-Speak D2604 / 830000 WG

Test Scan-Speak Discovery D2604 / 830000 with WG PCT-300 / WG-300 26mm dome tweeter 4 Ω with waveguide

Datasheet ©
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.

Scan-Speak D2604 / 830000 WG

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.

Burst decay


Overall, very smooth and rapid decaying over all frequencies.

Minimal delayed in the super high tones.

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.



Frequency response / directional behavior:4.6 5 out of stars
Range:5 5 out of stars
Power handling:5 5 out of stars
consisty / without rating:0 5 out of stars
Haptics:4.5 5 out of stars
Price-performance:5 5 out of stars


The 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:

In terms of "dome tweeter with waveguide" remain, realistically, nothing to be desired. Very broadband usable, extremely low-level distortions and in terms of directivity close to the ideal ...


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