Test Scan-Speak Discovery H2606 / 920000 26mm dome tweeter 4 Ω with waveguide

Datasheet © heissmann-acoustics.de
Measurements in DIN baffle in 50cm distance at 2,83V. Level scaled to 1m.

scan_speak_h2606_920000

Frequency response 2,83V / m & impedance

scan_speak_h2606_920000_amp_imp

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

Consisty

scan_speak_h2606_920000_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°)

scan_speak_h2606_920000_deg_hor

Wide dispersion up to ~ 2,5kHz, then rapidly and evenly getting narrower towards the super highs.

Burst decay

scan_speak_h2606_920000_burst_decay

Overall, very even and rapid burst-decay, minimally delayed in the super high.

harmonic distortion (90, 95 & 100dB / m)

scan_speak_h2606_920000_distortions

Very low harmonic distortion, at all measured levels> 1,5kHz

K3 barely exceeds, even at 100 dB / m, the 0,1% mark . K2 remains inaudible.

Rating

Frequency response / directional behavior:
Range:
Power handling:
Consisty:
Haptics:
Price-performance:

Summary

The 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

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.

Scan-Speak D2604 / 830000 WG

Directivity horizontal (0 °, 15 °, 30 °, 45 °, 60 ° & 90 °) & Impedance

Scan_830000_winkel_hor

... normalized to 0 ° (sonogram)

Scan_830000_directivity_hor

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

Scan_830000_bd

Overall, very smooth and rapid decaying over all frequencies.

Minimal delayed in the super high tones.

harmonic distortions (90-105dB / m)

Scan_830000_distortions

K3 remains in the range <105% at all measured levels, even at 1dB / m> 0,9kHz.

K2 increases evenly with increasing level and exceeds> 1kHz the 1% mark only at levels> 100dB.

Outstanding!

Rating

Frequency response / directional behavior:
Range:
Power handling:
consisty / without rating:
Haptics:
Price-performance:

Summary

The Scan-Speak D2604 / 830000 measures itself at the Waveguide, apart from the ~ 1dB lower efficiency practically identical to the D2604 / 833000, Therefore, 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 ...

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.

scan_speak_833000_waveguide

Directivity horizontal (0 °, 15 °, 30 °, 45 °, 60 ° & 90 °) & Impedance

scan_833000_winkel_hor

... normalized to 0 ° (sonogram)

scan_833000_wg_directivity_hor

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.

Burst decay

scan_833000_wg_bd_sonogram

Overall, very smooth and rapid decaying over all frequencies.

In super high tone> 15kHz minimally delayed.

harmonic distortions (90-105dB / m)

scan_833000_wg_distortions

K3 remains at <105% at all measured levels, even at 1dB / m> 0,5kHz, and is largely independent of the excitation signal.

K2 rising evenly with increasing level and exceeds the 1% mark appreciably only at levels> 100dB.

Outstanding!

Rating

Frequency response / directional behavior:
Range:
Power handling:
consisty / without rating:
Haptics:
Price-performance:

Summary

The reader may like the one or the other similar to Peerless DX25TG09-04 (Vifa XD-270 F / 4) on the waveguide to have noticed ...

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, .
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 ...