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:4 5 out of stars
Range:4.5 5 out of stars
Power handling:4.5 5 out of stars
Consisty:4.8 5 out of stars
Haptics:4 5 out of stars
Price-performance:4.5 5 out of stars

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: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

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 all measured levels, even at 105dB / m> 1kHz below <0,5%, 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:4.8 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

Summary

The 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, .
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 Seas DXT 27TBCD / GB (H1499-06) 25mm dome with waveguide, 6 Ω

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

Seas_h1499_27tbcd_dxt

Seas DXT 27TBCD / GB Sound Pressure & Impedance (Scatter)

seas_27tbcd_dxt_Amplitude_

Very broadband and symmetrical superelevation from 800Hz to 10kHz, which can be easily equalized with the crossover. This is due to the waveguide and already a first indication of its effectiveness.

The efficiency reaches broadband 95dB but then drops down to 88dB in super high. In the case of linear tuning, therefore, no more than the named 88dB / 2,83V / m are achieved.

The impedance path is interference-free and shows a slightly asymmetrical "resonance hill" around 900Hz. More commonly seen with tweeters with coupling volume.

Seas DXT 27TBCD / GB Sound pressure at angles (15 °, 30 °, 45 °, 60 °)

seas_27tbcd_dxt_winkel

Extremely even directivity into the super high tone. In large parts near the so-called constant directivity Behavior.

Seas DXT 27TBCD / GB decay behavior

seas_27tbcd_dxt_Ausschwingverhalten

Even and fast decay over all frequencies.

Seas DXT 27TBCD / GB level linearity 85, 90, 95 and 100dB

seas_27tbcd_dxt_Pegellinearität

Frequency response level corrected, based on the 85dB measurement

Even and low dynamic compression from 100dB / m <= 0,5dB (Please note the scaling => 20dB-Range)

Seas DXT 27TBCD / GB harmonic distortions

seas_27tbcd_dxt_Klirr

Extremely low harmonic distortion even at 100dB. K2 increases evenly with the level and remains below the 100% mark until 2dB starting at 1kHz.

K3 increasing below 2,5kHz, above that at the measurability limit.


Rating


Frequency response / directional behavior:5 5 out of stars
Range:4.5 5 out of stars
Power handling:4.5 5 out of stars
Consisty:4.5 5 out of stars
Haptics:4.5 5 out of stars
Price-performance:4.8 5 out of stars

Summary


Nowadays the straightening behavior of loudspeakers is getting more and more important. The Seas DXT stands out in this discipline from the competition. No other known tweeter of this size shows as uniform straightening as the Seas DXT.

However, it requires a careful baffle design to maintain this behavior. In "normal widths" baffles (~ 20cm) eg. The Seas DXT tends to widen significantly at angles around 3kHz.

Work very well:

  • a virtually nonexistent ...
  • or a very wide baffle.

See also here

Also in all other disciplines of the Seas DXT shows without blemish and blame.

Test Wavecor TW030WA09 30mm dome tweeter with low sound conduction 4Ω

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

Wavecor TW030WA09

Wavecor TW030WA09 Sound Pressure & Impedance (Scattering)

TW030WA09_Amplitude_Impedanz

Very good linearity with evenly decreasing amplitude response. Extremely broadband. The efficiency is on average around 93dB / 2,83V. In the super highs, however, only to 88-90dB.

Both drivers are practically congruent in their frequency response up to 10kHz. Above very small deviations. Very good. The TW030WA09 is expressly advertised as "... best consistency" in the manufacturer data sheet.

There are no disturbances in the impedance. Practically congruent graph of both drivers. Exemplary.

The resonance frequency is at 700Hz. Very low for a driver without coupling volume. The accented resonance peak indicates that there should no ferrofluid be found in the air gap.

Wavecor TW030WA09 Sound pressure at angles (15 °, 30 °, 45 °, 60 °)

TW030WA09_Winkel

Very even and balanced omnidirectional behavior. For a tweeter equipped with a 30mm voice coil even in the super high tones still widely radiating.

Wavecor TW030WA09 Lingering behavior

TW030WA09_Ausschwingverhalten

Very even and fast decay over all frequencies.

Wavecor TW030WA09 level linearity 85, 90, 95 and 100dB

TW030WA09_Pegellinearität
Frequency response level corrected, based on the 85dB measurement

From 100dB minimum dynamic compression <= 0,5dB in super high.

(Please note the scaling => 20dB-Range)

Wavecor TW030WA09 harmonic distortion

TW030WA09_Klirr

Very low harmonic distortion even with 100dB. K2 increases evenly with the level, hardly exceeding the 100% mark even with the 1dB measurement.

K3 and higher-order distortions play virtually no role. One might be tempted to separate the tweeter with a steep edge at 1200Hz. Who wants to be safe takes 1,5kHz.


Rating


Frequency response / directional behavior:4.5 5 out of stars
Range:4.8 5 out of stars
Power handling:4.5 5 out of stars
Consisty:4.5 5 out of stars
Haptics:4.8 5 out of stars
Price-performance:4.5 5 out of stars

Summary


The Wavecor TW030WA09 ...

with its 30mm voice coil, a resonant frequency around 700Hz and the very low harmonic distortion already from 1kHz invites you to be married to a beautiful 20 midrange driver. Messtechnisch he makes no weaknesses, is very deep, looks classy, ​​and is, with an EIA of only 55 € (As of Dec. 2013) to be described as extremely cheap.

Test Seas Noferro-900 Visaton Waveguide WG-148R 4 Ω dome tweeter with Visaton waveguide

Datasheet © www.heissmann-acoustics.de
Measurements in 17x35cm baffle in 70cm distance at 2,83V. level scaled to 1m

Seas Noferro-900 Visaton Waveguide WG-148R

4 Ω dome tweeter with waveguide

Noferro900_W148R_2 Noferro900_W148R_1

With the new WG148R Visaton has placed an excellently processed waveguide for 25 mm tweeters on the market. This was combined with the Seas Noferro-900, with excellent results.

To mount the Seas Noferro-900 to the WG148R you only have to widen the screw holes of the tweeter from 4,5 to approx. 6mm.

Directivity horizontal (0-90 ° in 15 ° steps)

Noferro900_W148R_Winkel

Due to the waveguide system-related symmetrical elevation in the frequency range from 1-10kHz.

The Seas Noferro 900 and the Waveguide WG-148R are a perfect match. Both mechanically and, and in particular acoustically. Directivity is extremly even, up to highest octaves. Just above 3kHz there is a slight widening. This can be further improved by clever connection to an 5-7 inch mid-bass driver. That behavior fitted perfectly with midrange speakers of the 15cm class. Crossover points around 2-3kHz promise excellent results.

It should be noted: The combination was measured in a maximum narrow baffle (17cm). Such is usually very beneficial for waveguides in terms of controlled directivity.

In the 2. Image, frequency response was roughly linearized by DSP. A shelving filter and a PEQ were set.

Sound pressure standardized at angles to 15 °

Noferro900_W148R_Winkel2

impedance

Noferro_WG148R_Impedanz

Flawless impedance.

Very pronounced, a ferrofluid-free tweeter distinguished, resonance peak at 900Hz.

Burst decay

Noferro_WG148R_Ausschwingen

Even and rapid decay over all frequencies. Perfectly.

Harmonic Distortions 85, 90 and 95dB

Noferro_WG148R_Klirr

The harmonic distortions are extremely low. Only at 10kHz scratched K2 at 95dB / m at the 1% mark ... inaudible. K3 and higher orders are negligible. Crossovers around 1,5kHz with> = 18dB / Oct can be realized without any problems.

Rating


Frequency response / directional behavior:5 5 out of stars
Range:5 5 out of stars
Power handling:4.5 5 out of stars
Constance / Without Rating /:0 5 out of stars
Haptics:4.5 5 out of stars
Price-performance:5 5 out of stars

Summary


The Seas Noferro-XNUMX with the Visaton Waveguide WG-XNUMXR measures itself ...

... excellent in all disciplines! There is not much more to say about that.

The sum of the EIAs is incidentally, in view of the results, hard to believeXNUMX € (WGXNUMXR: XNUMX € and NoferroXNUMX XNUMX €, as of October XNUMX).

Test Peerless DX25TG09-04 (Vifa XD-270 F / 4) at Waveguide WG-300 4 Ω dome tweeter 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.

Vifa XD270F4 WG300 closeup

Directivity horizontal (0-90 ° in 15 ° steps)

Vifa / Peerless XD-270 F / 4 (DX25BG60-04) on Waveguide WG-300

Due to the waveguide system-related symmetrical elevation in the frequency band of 1-10kHz. This can be easily leveled with the crossover.

The Vifa Peerless XD-270 / F4 fits perfectly with the Waveguide WG-300. Very uniform bundling without significant interference. Outstanding is the behavior> 10kHz. 20kHz are reached even under 45 ° with almost full level.

The amplitude response drops below 45 ° of 2-18kHz by only 2,5dB! The 30 ° curve runs to 20kHz in a + -1,5dB tight tube. 20kHz are reached at full level.

The sonogram shows a bundling behavior that comes very close to the so-called Constant Directivity.

Sound pressure standardized at angles to 0 °

Vifa / Peerless XD-270 F / 4 (DX25BG60-04) on Waveguide WG-300

Vifa_XD270_WG_Sonogram_normiert

Burst decay

Minimal delayed decay by 2 and 20kHz. Otherwise perfectly.

Harmonic distortions

Vifa Peerless XD-270 / F4 (DX25BG60-04) &amp; Waveguide WG-300 harmonic distortion

The harmonic distortion of the XD-270 F / 4 on the waveguide is excellent.

K2 remains below the 100% mark even at 1,2dB as of 1kHz. K3 moves from 1kHz between 0,04 and 0,3%.

Clatter components of higher order are in the (for me) no longer measurable range.

Separations from 1,2kHz are possible without hesitation, depending on the application and level requirements possibly even deeper.


Rating


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

Summary


The Peerless / Tymphany DX25TG09-04 on the Waveguide WG-300 measures itself outstanding.

The ability to build a speaker that comes close to the specifications of Constant Directivity. Separations from 1,2kHz. Lowest harmonic distortion even with 100dB / m ...

Of course, a very interesting driver for Cinetor.

Test Peerless / Tymphany XT25TG-30 / 04 (XT-300 / K4) at the waveguide WG-300 / PCT-300 4 Ω ring emitter 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.

XT25TG30_04_WG

XT25TG-30 / 04 Sound pressure at angles

Vifa XT-300 (XT25TG-30 / 04) WG300 Sound pressure at angles

System-induced overshoot in the frequency band of 1-7kHz. This can be due to their symmetry very easy to equalize with the crossover. It is the purpose of a sound guide to act as an acoustic amplifier. This results in a more uniform bundling and higher load capacity. The Vifa XT-300 (XT25TG-30 / 04) fits perfectly with the waveguide. Extremely uniform bundling without significant disturbances. Due to the large dome (30mm voice coil) slightly stronger directivity from 8kHz.Recommendation: On the axis a slight increase> 8kHz in the tweeter schedule.

XT25TG-30 / 04 Sound pressure standardized at angles to 0 °

Vifa XT-300 (XT25TG-30 / 04) WG300 Sound pressure normalized at angles

Vifa XT-300 (XT25TG-30 / 04) WG300 Sound pressure normalized at angles

Here, the frequency response was linearized on axis. The 2. Picture (sonogram) clearly shows the excellent uniform straightening behavior of the combination of XT-300 and the waveguide.

XT25TG-30 / 04 decay behavior

Vifa XT-300 at Waveguide WG-300 decay behavior

Minimal delayed decay by 2kHz. Otherwise perfectly.

XT25TG-30 / 04 harmonic distortions

Vifa XT-300 at the waveguide WG-300 harmonic distortion

As expected, the distortion decreases compared to the variant without waveguide. The XT-300 already showed very good distortion even without waveguide, but with a significant increase of K2 under 3kHz. With Waveguide the effect is also present but attenuated by about 5dB. In sum, very low distortion. Even with 100dB, everything from 2kHz remains below 1%. K3 moves at the measurable limit.

Rating


Frequency response / directional behavior:4.5 5 out of stars
Range:5 5 out of stars
Power handling:5 5 out of stars
Constance / Without Rating /:0 5 out of stars
Haptics:4 5 out of stars
Price-performance:5 5 out of stars

Summary


The Peerless XT25TG-30 / 04 and the Waveguide WG-300 are a highly attractive combination for extremely low-level installations, eg in home cinema. Can be used already from 1,5kHz. I think I'll test that in Cinetor.

Test Wavecor TW022WA06 Dome tweeter 4Ω with sound guide

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

Wavecor TW022WA06

Wavecor TW022WA06 Sound Pressure & Impedance (Scattering)

Wavecor TW022WA06 amplitude and impedance (dispersion)

Very good linearity with a slight increase from 2 to 7kHz, which can be easily equalized with the crossover and / or a clever arrangement on the baffle. From 15kHz slightly decreasing amplitude response. Full level from 1kHz, with an average efficiency of 91dB / 2,83V.

Both drivers are practically congruent in the frequency response as of 1,5khz.

There are no disturbances in the impedance path. In both drivers practically congruent.

Wavecor TW022WA06 Sound pressure at angles (15 °, 30 °, 45 °, 60 °)

Wavecor TW022WA06 Angle Measurements 0-60 °

Extremely uniform omnidirectional behavior thanks to the sound transmission. The combination of sound guide and dome is extremely well done.

Wavecor TW022WA06 Lingering behavior

Wavecor TW022WA06 Lingering behavior

Even and very fast decay over all frequencies. No criticisms

Wavecor TW022WA06 harmonic distortion

Wavecor TW022WA06 harmonic distortion

The harmonic distortion is sensational for such a small (22mm voice coil) calotte. K3 remains below 95% even at 0,15dB, starting at 1,3kHz.

K2 increases slowly below 3kHz, but still allows for a separation around 1,5kHz. Even with such a deep separation, the 1% mark would not be reached. Higher-order distortion components are completely negligible. If you aim for very low-distortion loudspeakers, it will separate at 2kHz.

Rating


Frequency response / directional behavior:4.5 5 out of stars
Range:4.5 5 out of stars
Power handling:4 5 out of stars
Series constancy / without rating:0 5 out of stars
Haptics:5 5 out of stars
Price-performance:5 5 out of stars

Summary


Wavecor TW022WA06 does not have any weaknesses in metrology

  • wide frequency response
  • very good omnidirectional behavior
  • sensational (for a 22mm voice coil) lower K3
  • very good workmanship and touch quality
  • Can be used from 1,5kHz !!!
  • supposedly very low dispersion

... and all for very cheap 45 € (as of October 2013)!

Test Monacor DT-300 with Waveguide WG-300 A combination for high level applications with very good directional characteristics

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

Monacor DT-300 with Waveguide WG-300

30mm dome tweeter with waveguide

DT300_WG300

Monacor DT-300 / WG-300 sound pressure (scattering)

Monacor DT-300 &amp; WG-300 amplitude response dispersion

Monacor_DT300_WG300_Streuung6

Monacor_DT300_WG300_Streuung3

Due to the principle, the frequency response drops evenly towards high frequencies (waveguide), which is very easy to equalize with the crossover. Noteworthy are the two burglaries at 7kHz and 13kHz.

Overall satisfactory dispersion. From 2-14kHz all 4 DT-300 / WG-300 move in a hose of + -1dB, above and below a little worse.

Addendum: As for the Kits Cinetor and Cinetor HWG, the tweeters have been individually checked for quite some time now, I have several serial measurements of the DTXNUMX on the waveguide.

The 2. Picture shows an example of relatively high, the 3. of very low consisty.

Monacor DT-300 / WG-300 Impedance (Scatter)

Monacor DT-300 / WG-300 Impedance

The impedance curve of the DT-300 with WG-300 is not very harmonious and of relatively low consisty.
The differently pronounced double hump probably originated in different damping of the pole core bore to the coupling volume and in the extremely generous dose of ferrofluid. Separations below 2,5kHz are only conditionally recommendable.

Monacor DT-300 / WG-300 sound pressure at angles (0-90 °)

Monacor DT300 WG300 angle measurements
Directional behavior is very uniform, thanks to the waveguide concept.
The bundling behavior <= 2kHz results from the narrow baffle (20cm). Only at angles> = 45 ° is the frequency response above 10kHz somewhat restless. Altogether the Monacor DT-300 and the Waveguide WG-300 harmonize well with each other.

Monacor DT-300 / WG-300 decay behavior

Monacor DT-300 / WG-300 decay behavior

Overall smooth and fast decay, delayed by 7kHz and 13kHz.

Monacor DT-300 / WG-300 harmonic distortion

Monacor DT-300 / WG-300 harmonic distortion

The Monacor DT-300 on the WG-300 has very low harmonic distortion. K2 rises evenly with the level and always stays at a low level. K3 only rises below 2kHz, above that extremely low. Harmonic components of higher order are negligible. From the harmonic distortion one could disconnect the combination DT300 / WG300 without hesitation at 1,5kHz. Unfortunately, the impedance gear is in the way.

Rating


Frequency response / directional behavior:4 5 out of stars
Range:4 5 out of stars
Power handling:5 5 out of stars
Consisty:1.5 5 out of stars
Haptics:3 5 out of stars
Price-performance:2 5 out of stars

Summary


The Monacor DT-300 with the Waveguide DT-300 is on the whole a good tweeter. In particular, the level stability, the high efficiency, the low harmonic distortion and the uniform radiation behavior under angles are to be emphasized.

Big downside is the lack of constancy of the driver.