ambitious stereo applications in small to medium-sized rooms
passive near-field monitor
In the home cinema as a main, center or rear speaker.
It made sense to test the, allready in Mark K's ER18DXT installed and proven combination of Seas ER18RNX (H1456-08) and Seas DXT 27TBCD/GB (H1499), also in the DXT-MON series.
And the test was successful ... In terms of cabinet size, it is significantly smaller than the DXT-MON-182, correspondingly a little less deep bass. In terms of horizontal directivity, the DXT-MON-RNX sets the bar even a little higher. An extremely fascinating speaker!
Where the DXT-Wave-Fusion already shows outstanding, the XL version goes one step further, especially in terms of dynamics, while retaining all the positive properties.
As with all speakers from the DXT-MON family, the horizontal directional behavior of the DXT-Wave-XL can also be regarded as almost perfect.
The DXT-Wave-XL is characterized by an absolute lack of distortion accompanied by an extremely transparent and precise reproduction, and that with a depth that leaves nothing to be desired. Even the lowest notes are reproduced with an ease and precision (-3dB @ 28Hz) that knows how to impress.
Due to the d´ appolito arrangement, an intensive spatial representation is achieved even in acoustically not optimized rooms by reducing floor and ceiling reflections.
Thanks to activation by means of the DSP amplifier Hypex FusionAmp FA123, the DXT-Wave-XL-Fusion shows its strengths, especially when it comes to adaptability. You can switch between three presets (Flat / Party / Near-Wall) at the push of a button. If necessary, individual circumstances can be addressed at any time and suitable setups can be created.
Components
Wavecor WF223BD02
Hobby Hifi 04 / 2016
Wavecor is once again setting new standards with its first 20 mm bass-midrange driver: At the moment we don't know of any better driver for a two-way speaker that is level down to the deep bass.
Wavecor WF152BD06
Klang & Ton 02 / 2013
In this as in all other respects, the new driver is perfect: even at 95 decibel the driver has almost no distortions, has almost no resonance up to almost 10 kilohertz and shows a perfectly balanced frequency response ... The processing is Waveor-typical excellent - they only have the best materials installed.
ambitious stereo applications in small to medium-sized rooms
passive near-field monitor
In home theater aplications as a main, center or rear speaker. With DXT-MON and DXT-Wave perfectly combinable
Features
extremely neutral and precise reproduction
outstanding uniform directional behavior
lowest harmonic and non-linear distortions
the built-in drivers are of the highest quality
very impressive and effortless reproduction of even the lowest notes
Thanks to the passive membrane (Dayton DSA-215 PR or Seas SP22R) there are no problems frequently encountered with ventilated systems in terms of flow noise or "mid-range waste"
Components
Wavecor WF182BD09
Hobby Hifi 03 / 2014
These drivers (Note: WF182BD09 and WF182BD10) offer outstanding value for money. For audiophile and living room-friendly two-way floor boxes, they are simply perfect.
Ambitious stereo applications in medium and larger rooms
As Main loudspeaker in the home cinema
... extended with DXT-Mon as center / rear / surround
Features
Thanks to activation with the DSP amplifier Hypex FusionAmp FA123, the excellent characteristics of the DXT-Wave have been further improved. The filtering between low - and midrange is now, unlike the passive version, with Linkwitz-Riley filters 4. Order. Passively, this slope would have been complicated and costly to accomplish. Also in terms of linearity and directional behavior small improvements could still be achieved.
Especially in terms of adaptability, the DXT-Wave-Fusion shows its strengths. Three different setups (Flat / Party / Near-Wall) can be easily changed at a flick of a switch . If necessary, individual circumstances can be dealt with at any time and suitable setups can be created.
Components
Wavecor WF182BD10
Hobby Hifi 03 / 2014
These drivers (Note: WF182BD09 and WF182BD10) offer outstanding value for money. For audiophile and living room-friendly two-way floor boxes, they are simply perfect.
Wavecor WF152BD06
Klang & Ton 02 / 2013
In this as in all other respects, the new driver is perfect: even at 95 decibel the driver has almost no distortions, has almost no resonance up to almost 10 kilohertz and shows a perfectly balanced frequency response ... The processing is Waveor-typical excellent - they only have the best materials installed.
Principle: 3 ways, d'appolito, bass reflex or closed
Dimensions (HxWxD): 1265x230x388mm
Net volume woofers: 2x30l
Frequency range (-3dB):
34-40000Hz (bass reflex)
45-40000Hz (closed)
Applications
Ambitious stereo applications in medium and larger rooms
As Main loudspeaker in the home cinema
... extended with DXT-Mon as center / rear / surround
Features
extremely transparent and precise reproduction
very convincing presentation of even the deepest notes
outstanding even, horizontal dispersion
intensive spatial representation even in acoustically not optimized rooms by reducing floor and ceiling reflections (=> d´appolito arrangement)
very low harmonic and nonlinear distortions
flexible as a bass reflex, closed or a mixed form of both. Thus also in difficult conditions applicable.
Components
Wavecor WF182BD10
Hobby Hifi 03 / 2014
These drivers (Note: WF182BD09 and WF182BD10) offer outstanding value for money. For audiophile and living room-friendly two-way floor boxes, they are simply perfect.
Wavecor WF152BD06
Klang & Ton 02 / 2013
In this as in all other respects, the new driver is perfect: even at 95 decibel the driver has almost no distortions, has almost no resonance up to almost 10 kilohertz and shows a perfectly balanced frequency response ... The processing is Waveor-typical excellent - they only have the best materials installed.
DXT-MON-STAND is a, only 18cm wide tower speaker based on the reference speaker DXT-MON, The measurement results of both speakers are almost identical, apart from the noticeably more depth in the stand version (-3dB ~ 44Hz). Despite the small size, DXT-MON-STAND shows an impressive level stability.
The crossover is almost identical to DXT-MON. Only two resistors need to be adjusted.
Technical data
Nominal impedance: 4 Ohm
Crossover frequency: 1800Hz LR4
Sensitivity (2,83V/1m): 83,5 dB
Concept: 2 ways, bass reflex
Dimensions (HxWxD): 900x180x208mm
Net volume: 12,5l
Frequency range (-3dB): 44-40000Hz
Applications
Sophisticated stereo applications in small to medium spaces
Home theater: Main and Rear
Components
Wavecor WF152BD06
Klang & Ton 02 / 2013
In this as in all other respects, the new driver is perfect: even at 95 decibel the driver has almost no distortions, has almost no resonance up to almost 10 kilohertz and shows a perfectly balanced frequency response ... The processing is Waveor-typical excellent - they only have the best materials installed.
High-quality stereo aplications in small to medium sized rooms
Home theater: Main / Center / Rear with subwoofer support
Components
Wavecor WF152BD06
Klang & Ton 02 / 2013
In this as in all other respects, the new driver is perfect: even at 95 decibel the driver has almost no distortions, has almost no resonance up to almost 10 kilohertz and shows a perfectly balanced frequency response ... The processing is Waveor-typical excellent - they only have the best materials installed.
Measurements in DIN baffle in 70cm distance at 2,83V. Level scaled to 1m
Seas DXT 27TBCD / GB sound pressure & impedance (dispersion)
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 response is interference-free and shows a slightly asymmetrical "resonance hill" around 900Hz. More often seen in tweeters with coupling volume.
Seas DXT 27TBCD / GB Sound pressure at angles (15 °, 30 °, 45 °, 60 °)
Extremely even directivity into the super high tone. In large parts near the so-called constant directivity Behavior.
Seas DXT 27TBCD / GB Decay behavior
Even and fast decay over all frequencies.
Seas DXT 27TBCD / GB level linearity 85, 90, 95 and 100dB
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 distortion
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:
Range:
Power handling:
Consisty:
Haptics:
Price-performance:
Conclusion
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, a careful baffle design is required to maintain this behavior. In "normal widths" baffles (~ 20cm) for example. the Seas DXT tends to widen significantly at angles around 3kHz.
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
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)
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 °
impedance
Flawless impedance.
Very accented, resonance peak at 900Hz, labeling the tweeter as ferrofluid-free.
Burst decay
Even and rapid decay over all frequencies. Perfectly.
Harmonic Distortions 85, 90 and 95dB
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:
Range:
Power handling:
Constance / Without Rating /:
Haptics:
Price-performance:
Conclusion
The Seas Noferro-XNUMX with the Visaton Waveguide WG-XNUMXR measures itself ...
... excellent in all disciplines! There is not much more to say about it.
The sum of the EIAs is incidentally, in view of the results, hard to believeXNUMX € (WGXNUMXR: XNUMX € and NoferroXNUMX XNUMX €, as of October XNUMX).
Measurements in DIN baffle in 70cm distance at 2,83V. Level scaled to 1m
Seas Prestige Noferro 900 (H 1025-06)
27mm dome tweeter 6 ohm
Seas Noferro 900 (H 1025-06) Sound pressure & impedance (dispersion)
Excellent linearity. Full level already from 1000 Hertz. The efficiency is above average with 92 / 2,83V for an 25mm dome with a nominal impedance of 6Ω.
The amplitude, impedance and impedance paths of the two drivers are almost congruent.
Seas Noferro 900 (H 1025-06) sound pressure at angles (15 °, 30 °, 45 °, 60 °)
Very clean and uniform bundling behavior.
Also in super high for a tweeter with 26mm voice coil very wide beam.
Seas Noferro 900 (H 1025-06) decay behavior
Overall, very smooth and rapid decaying over all frequencies. Minimally delayed by 16kHz.
Seas Noferro 900 (H 1025-06) harmonic distortion
Very low 3rd order distortion. Even at 95dB / 1m it always stays below 0,3%, and that from 1khz. K2 is strongly dependent on the excitation signal, rising below 3kHz. Recommended separation:> = 2kHz (18dB / octave) Overall very low distortion.
Rating
Frequency response / directional behavior:
Range:
Power handling:
Continuity of series / Without rating /:
Haptics:
Price-performance:
Conclusion
As a classic shows what he can.
In all disciplines, the Seas Noferro 900 shows very good readings.
Noteworthy are the ruler-smooth frequency response on the axis and the very clean omnidirectional behavior.
A really fine tweeter.
As already said the Klang & Ton (04/2000):
There is simply nothing wrong with this tweeter ...