Whise HA1500HD-A Instruction Manual Download Page 11

 

 

 

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HA1500 HD-A

®

 Electrostatic Array 

No more electrostatic restrictions 

Electrostatic speakers have traditionally been known to have drawbacks. 

Poor bass response 

Low sensitivity 

Poor dispersion 

Large physical size 

 
Different companies have tackled one or two of these issues with mixed results, 
introducing artificial delays in order to simulate a point source, curving the array 
in an attempt to improve dispersion and enhancing various frequencies to make 
the sound appear better than it is. The Whise 1500 HD-A

®

 loudspeaker evolved 

from over 18 years research and development and overcomes these limitations 
without any compromise on sound quality. 
 

Non-curved array 

Some current generation electrostatic speakers use curved panels. Any curved 
diaphragm that is non-stretchable, such as Mylar™, cannot move linearly as the 
force required for forward motion differs from the force required for rearwards 
motion. In addition, any motion will inherently cause a buckling of the diaphragm 
surface. This non linear distortion increases greatly at lower frequencies, and this 
typically results in the use of higher crossover frequencies to minimise these 
problems. 
 
Using a symmetrically flat electrostatic array, combined with the patented 
mechanical techniques, ensures that the shape and size of the speaker does not 
contribute to the sound. what you hear is an incredible reproduction of the 
recording, and an amazing presence of the recording environment. It truly is like 
being there. 

 

Front and Rear image is identical 

Uniform bi-directional speakers have a rear audio image that is identical to the 
front. This has two major advantages. Firstly, rather than try and discard or 
distort the rear image, it can be used to reinforce the audio, adding power to the 
overall sound. It is well known that the room contributes a lot to the listening 
experience. By allowing the rear audio image to propagate, the entire room is 
utilised more effectively. 
 
Secondly, the rear audio image helps to extend and enhance the sound stage, 
giving it much needed depth of image that is essential in recreating a fully 
dimensional reproduction of the original recording.  

Summary of Contents for HA1500HD-A

Page 1: ...HA1500 HD A Loudspeaker Instruction Manual ...

Page 2: ...speaker sound so much better 10 HA1500 HD A Electrostatic Array 11 No more electrostatic restrictions 11 Non curved array 11 Front and Rear image is identical 11 The Art of Speed Whise 1500 HD A loudspeaker 12 Imaging 12 HA1500 HD A Balanced Woofer 13 NTM Neville Thiele Method Crossover 13 PAM Parametric Acoustic Modeling 13 VR UR Velocity Reflex Ultra Reflex 14 Troubleshooting 15 Specification 16...

Page 3: ...ns between the speakers and your audio equipment ensure that both the speakers and equipment are turned off If the speaker is behaving abnormally unplug it from the wall socket and Any faults or problems should be referred to a qualified repair technician Contact your dealer for information Any excessive moisture or liquid that makes contact with the speaker or its internal workings creates a pote...

Page 4: ...ray and woofer This allows you to run the Whise 1500 HD A loudspeaker from any signal level source without having to purchase expensive power amplifiers for each stage You can directly plug in your CD player computer game console or even portable music player You can even directly plug multichannel decoded outputs from any high definition source DVD SACD Blu ray HD DVD etc straight into the speake...

Page 5: ...5 Controls and Inputs ...

Page 6: ...tichannel surround sound configurations are illustrated below You may have to adjust the characteristic of the sound to accommodate for your room shape and size but try to ensure that the panel portion of each speaker is a minimum of 30cm away from any nearby walls ...

Page 7: ...rger listening area but for the absolute optimum listening for one person only aim the Whise 1500 HD A loudspeaker directly at the listener Step 3 Connections With your equipment turned off connect your Whise 1500 HD A loudspeakers to the equipment either via the RCA pre amplified input or via the loudspeaker output of your equipment If you choose the speaker level connection be sure that you conn...

Page 8: ...ear and the other end into the wall socket and turn on Make sure you are not playing any audio when you turn the speakers on as you will not know what volume to expect the first time and may damage your equipment The Whise logo at the front of the speaker will turn blue when there is a signal present The speaker will go into standby mode after 2 minutes of zero input and the logo will change to am...

Page 9: ...conventional electromagnetic cone speakers Once you are satisfied that the audio imaging is correct listen to the various frequency components with the knobs all set to 12 o clock Brightness Now you should adjust the room brightness to your taste It is not uncommon for this to be somewhat lower than the normal especially if you have a lot of reflective surfaces in the room The best way to test is ...

Page 10: ...he standard setting over time you may wish to increase this once you become accustomed to the nuances and detail that the Whise 1500 HD A loudspeakers offer If you go back to listening on conventional electromagnetic cone speakers you will appreciate just how much of the recording was missing and just how much additional information the Whise 1500 HD A loudspeaker recovers from the recording What ...

Page 11: ...g of the diaphragm surface This non linear distortion increases greatly at lower frequencies and this typically results in the use of higher crossover frequencies to minimise these problems Using a symmetrically flat electrostatic array combined with the patented mechanical techniques ensures that the shape and size of the speaker does not contribute to the sound what you hear is an incredible rep...

Page 12: ...t resulting in a cleaner clearer sound and unparalleled audio Take full advantage of the higher bit stream rates of the latest high definition sources Imaging The Whise 1500 HD A loudspeakers major advantage is greatly improved imaging It provides a sound stage that is not confined by the physical position of the speakers in the room and depending on the recording presents a larger image than the ...

Page 13: ...p delay as well as a behaved phase response NTM crossovers eliminate the breadth of interference region between bands to the extent that interference becomes negligible NTM crossovers have significantly reduced group delay variation compared to conventional crossovers of equivalent steepness In analogue implementations NTM crossovers have substantially lower component counts than conventional syst...

Page 14: ...with incredibly high efficiency and an almost ideal frequency response over its chosen frequency range This technique has been employed in all Whise high end professional and cinema subwoofer designs and is praised globally by audio professionals including Tomlinson Holman of Lucasfilms THX fame VR UR Velocity Reflex Ultra Reflex VR UR is a subwoofer technology originally developed for automotive ...

Page 15: ...the speakers Excessively high or low bass o Try adjusting the 80 Hz and 250 Hz knobs o Try moving the speakers test different distances from the wall Popping crackling hissing noises o This is normal on start up for electrostatic panels particularly if they have not been used for some time Wait and see if it stops in time o Vacuum clean the electrostatic speaker panel Be sure to turn the speaker o...

Page 16: ...sure Fall Off With Distance 1 dB m Woofer Topology Dual 8 Inch Balanced Anti Vibration Distortion 50 to 300 Hz Less Than 1 Woofer Amplification 100 W Class A B Distortion Above 300 Hz Less Than 0 7 Electrostatic Panel Amplification 100 W Class A B Electrostatic Array Topology 3 Segment Non Parallel Structure Turbulence Reduction Technology Maximum Output Level 3 Meters 110 dB Bass Control 6 dB Bel...

Page 17: ...220 Hz Connectivity RCA Line in 1 or 2 Cable or Speaker Level Terminal Stereo Multichannel Compatible Yes Power Supply 240 110 VAC Switchable Weight Approx 37 kg Vertical Dispersion 1100 mm Line Source Dimension HxWxD 1500 x 377 x 350 mm Horizontal Dispersion Stereo Mode 30 Degrees ...

Page 18: ...the audio and so out of phase sound becomes confusing because the brain is telling you that the sound isn t where it s coming from and the image becomes blurry Some recordings do this deliberately to simulate 3 dimensional audio Preamplifier A preamplifier usually lies between the amplifier and the signal source in order to provide volume control RCA The standard connection type for signal level a...

Page 19: ...ply problems tampering or unauthorised repairs by any persons use of defective or incompatible accessories the operation of a computer virus of any kind exposure to abnormally corrosive conditions or entry by any insect vermin or foreign object in the Product d to damage arising during transportation installation or while moving the Product or to any transportation costs of the Product or any part...

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