Test Scan-Speak Discovery D2604 / 833000 26mm dome tweeter 4 Ω

Datasheet © www.heissmann-acoustics.de
Measurements in DIN baffle in 70cm distance at 2,83V. Level scaled to 1m.

Scan-Speak Discovery D2604 / 833000

Frequency response and impedance (consisty)

Scan-Speak D2604 / 833000 frequency response

Extremely broadband frequency response. Full level from 1,1kHz, with good linearity.

The average efficiency is exceptionally at 93dB / 2,83V.

Impedance is flawless. The resonant frequency with 430 respectively 440Hz is below the manufacturer's specification of 475Hz.

Both drivers behave almost congruently both in amplitude and impedance.

Sound pressure at angles (0 °, 15 °, 30 °, 45 °, 60 °)

Scan-Speak Discovery D2604 / 833000 directivity

Directivity of the Scan-Speak D2604 / 833000 is even and balanced throughout the entire transmission range.

In the top octaves> 10kHz significantly wider radiating than, due to the effective membrane area of ​​8cm², would be expected.

Burst decay

Scan-Speak Discovery D2604 / 833000 burst decay

Overall smooth and fast decay over all frequencies.

> 10kHz minimally delayed.

harmonic distortions

Scan-Speak Discovery D2604 / 833000 distortions

The Scan-Speak D2604 / 833000 has outstanding low harmonic distortions.

K3 remains below 1% at all measured levels> 0,5kHz largely independent of the excitation signal.

K2 increases with the level, extends very evenly and would not reach the 1% to 1dB / m even with a crossover-point at 100kHz!


Rating


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

Summary


With an effective membrane area of ​​8cm², a resonant frequency <500Hz and the very low harmonic distortions, the driver invites to be deeply crossed eg. to a 20er Mid-Woofer. Crossover frequencies> = 1,5kHz should be possible without any problems. In smaller systems, eg with a 13er TMT, the Scan-Speak D2604 / 833000 could be crossed even at lower frequencies.

The concept of a large effective membrane area, in combination with a "standard voice coil" (26mm), and a rather soft dome material works out. Widely radiating in te top octaves, crossable very low, with high load capacity.

=> Scan-Speak D2604 / 833000 with waveguide

Leave a Comment

Your e-mail address will not be published. Required fields are marked with * .

Blue Captcha Image
refresh

*