speakerwizard.co.uk Report : Visit Site


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    Server:Apache...

    The main IP address: 178.128.44.5,Your server Greece,Athens ISP:Forthnet SA  TLD:uk CountryCode:GR

    The description :speakerwizard.co.uk » loudspeaker design advice & tools speakerwizard.co.uk loudspeaker design advice & tools speaker wizard -- users log in categories 2nd order crossover calculator crossover...

    This report updates in 04-Nov-2018

Created Date:2013-09-03
Changed Date:2017-08-04

Technical data of the speakerwizard.co.uk


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Latitude: 37.97945022583
Longitude: 23.716220855713
Country: Greece (GR)
City: Athens
Region: Attiki
ISP: Forthnet SA

HTTP Header Analysis


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DNS

soa:ns1.digitalocean.com. hostmaster.speakerwizard.co.uk. 1531226027 10800 3600 604800 1800
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HtmlToText

speakerwizard.co.uk » loudspeaker design advice & tools speakerwizard.co.uk loudspeaker design advice & tools speaker wizard -- users log in categories 2nd order crossover calculator crossovers impedance loudspeaker basics loudspeaker driver parameters power science of sound speaker design the human ear ts parameters pages speaker wizard archives november 2014 may 2014 april 2014 march 2014 february 2014 january 2014 recent posts 1st and 2nd order crossover calculator and response simulator driver ts parameters: cms (compliance) & vas (compliance equivalent volume) 2nd order butterworth passive crossover calculator thiele small parameters driver ts parameters: re (dc resistance) & le (voice coil inductance) tags 1st order 2nd order 2nd order crossover active addicted adrenaline amplifier bass calculator compliance crossover curve dc resistance driver ear equaliser excursion filter free air resonance frequency fs hearing damage high pass human impedance inductance low pass motor strength moving mass overhang pain parallel passive passive crossover power resistance resonant frequency science series series-parallel sound speaker ts parameters voice coil xmax november 2018 m t w t f s s « nov 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 « older entries 1st and 2nd order crossover calculator and response simulator posted november 20, 2014 by andy kos new improved version of the crossover calc this now includes a graphical plot of the frequency response. due to the size of the graphics, the form below will submit to a full page version of the calculator. you can select 1st order or 2nd order slopes, with the option of linkwitz-riley on 2nd order. we will add 3rd order and 4th order in due course. this calculators works two ways, you can enter the frequencies and impedances and calculate the component values, or you can enter the component values to get the crossover frequencies and see the frequency response. this version also allows different impedance and frequency between low pass and high pass, as well as different slopes. so you could for example have the low pass section with a 8 ohm woofer, crossing over at 1200 hz, and the high pass at 16 ohms crossing over at 1800 hz. combinations like this are becoming increasingly common, as using a 16 ohm hf driver often negates the need to put attenuation in the hf part of the circuit. also, a typical 1600hz butterworth crossover can often have a peak in response around the crossover frequency, particularly if the hf driver is highly efficient – offsetting the crossover frequencies may seem counter-intuitive as it might appear you are leaving a hole in the response, but often the coupling between lf and hf counteracts this. if you already have a crossover, you can simulate the response using the lower part of the controls. please check you have component values correct, capacitors should be specified in microfarads (uf) and inductors in millihenries (mh). most pre-built crossovers will have capacitor values printed on the components, unfortunately very few divulge the inductor values, to get these you will need an appropriate measurement meter. 2nd order crossover calc to get the component values for a crossover, enter the impedances and crossover frequencies for the high pass and low pass sections and then click ‘calc’ low pass 1st order butterworth 2nd order butterworth 2nd order linkwitz-riley low pass fc: hz khz woofer impedance: ohms high pass 1st order butterworth 2nd order butterworth 2nd order linkwitz-riley high pass fc: hz khz tweeter impedance: ohms plot type: power amplitude to see the response and crossover frequencies for known component values, enter these in uf and mh in the boxes below and click ‘calc’ c1: uf l1: mh c2: uf l2: mh filed in 2nd order crossover calculator , speaker design | tagged: 1st order , 2nd order , 2nd order crossover , butterworth , calculator , crossover , crossover calculator , graphic crossover simulator , linkwitz-riley , simulator driver ts parameters: cms (compliance) & vas (compliance equivalent volume) posted may 18, 2014 by andy kos cms is a measure of the suspension compliance. compliance is the opposite of stiffness. a driver with a stiff cone suspension will have a low cms, and a driver with a ‘loose’ cone suspension will have a higher cms. vas is known as the compliance equivalent volume, and is specified in litres. cms is proportional to vas, a higher cms will mean a higher vas, but what does the vas figure actually represent? you could think of the stiffness of the suspension as providing a restoring force that brings the cone back to it’s central ‘neutral’ position. if you were to gently push the dust dome of a driver with your fingertips, one with a stiff suspension would push back harder than one with a loose suspension. imagine a situation where you have an imaginary driver mounted in a sealed box, with an infinitely compliant suspension – ie a suspension that offers no resistance whatsoever to movement. if you were to push the driver cone back into the box, the cone moving back into the box would compress the air inside the box slightly, and when you release the driver cone, the air would push back to restore the cone to its original position. in a box with a small volume, the air would compress more, pushing back harder. as the box size increases, the same distance of movement of the cone will compress the air inside the box less, resulting in a smaller restoring force to push the cone back to it’s original position. the vas measurement in litres is the size of the ‘imaginary’ box described above, which has exactly the same restoring force as the suspension of the driver. cms and vas are effectively two different ways of describing exactly the same thing, the main reason for converting cms to vas is that vas fits into a lot of formulae better, and allows easier modelling of driver performance. air temperature, air pressure and humidity can have a significant effect on vas measurements, and it is quite common for variations of up to +/- 20% from published specifications. this is a combination of differences of measurement environment, and manufacturing tolerances. vas can be used for determining optimum box size for sealed speaker boxes (ie. not vented). if your sealed box is too small, the when the driver cone moves backwards into the box, compressing the air inside the box, the restoring force will be higher than optimal, causing the driver to move back out a little too quickly and potentially gain too much speed, and overshoot, causing it to go further out of the box than it should do. on the return journey, the rarefaction of the air inside the box will pull the cone in too fast, potentially causing it to go in too far. this is known as underdamping, when the movement of the cone gets exaggerated and increased instead of being controlled. this is undesirable as it causes distortion, and potentially affects the cooling of the voice coil if your sealed box is too big, the air inside the box will will slow the driver from returning to it’s central rest position rather than help it, this can make the box overdamped. many people consider being slightly overdamped as the best option, as it gives a more accurate sound, but it will often reduce the output volume. for bass speakers, critical damping, or ‘perfect’ damping is often what is sought after, this gives the best compromise, where the air inside the box helps restore the driver to it’s natural position, but not too much, and not too little, but just right. a speaker box with a q of 0.707 is generally regarded as perfectly damped, you could think of this as the goldilocks q, where it’s ‘just right’. the ratio of vas to box volume = (qtc/qts) 2 – 1 : 1 qtc is the desired q of the speaker, let’s assume we are aiming for a qtc of 0.7 qts is the total q of the driver, available from the manufacturer’s specification sheet. for purposes of some simp

URL analysis for speakerwizard.co.uk


https://speakerwizard.co.uk/tag/le/
https://speakerwizard.co.uk/driver-ts-parameters-cms-compliance-vas-compliance-equivalent-volume/
https://speakerwizard.co.uk/tag/vas/
https://speakerwizard.co.uk/tag/2nd-order/
https://speakerwizard.co.uk/thiele-small-parameters-what-are-they-for/feed/
https://speakerwizard.co.uk/2014/02/
https://speakerwizard.co.uk/tag/crossover-calculator/
https://speakerwizard.co.uk/tag/bass/
https://speakerwizard.co.uk/tag/adrenaline/
https://speakerwizard.co.uk/tag/fs/
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https://speakerwizard.co.uk/driver-ts-parameters-mmd-mms/feed/
https://speakerwizard.co.uk/driver-ts-parameters-xmax/feed/
https://speakerwizard.co.uk/tag/amplifier/
http://digg.com/submit?phase=2&url=https://speakerwizard.co.uk/driver-ts-parameters-cms-compliance-vas-compliance-equivalent-volume/&title=driver+ts+parameters%3a+cms+%28compliance%29+%26+vas+%28compliance+equivalent+volume%29

Whois Information


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Domain name:
speakerwizard.co.uk

Registrant:
Andy Kos

Registrant type:
Other UK Entity (e.g. clubs, associations, many universities)

Registrant's address:
3 Crosshouse Road
Southampton
Hampshire
SO14 5GZ
United Kingdom

Data validation:
Nominet was not able to match the registrant's name and/or address against a 3rd party source on 03-Sep-2013

Registrar:
Easyspace Ltd [Tag = EASYSPACE]
URL: https://www.easyspace.com/domain-names/extensions/uk

Relevant dates:
Registered on: 03-Sep-2013
Expiry date: 03-Sep-2019
Last updated: 04-Aug-2017

Registration status:
Registered until expiry date.

Name servers:
ns1.namecity.com
ns2.namecity.com

WHOIS lookup made at 21:52:46 13-May-2018

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  REFERRER http://www.nominet.org.uk

  REGISTRAR Nominet UK

SERVERS

  SERVER co.uk.whois-servers.net

  ARGS speakerwizard.co.uk

  PORT 43

  TYPE domain

OWNER

  ORGANIZATION Andy Kos

TYPE
Other UK Entity (e.g. clubs, associations, many universities)

ADDRESS
3 Crosshouse Road
Southampton
Hampshire
SO14 5GZ
United Kingdom
Data validation:
Nominet was not able to match the registrant's name and/or address against a 3rd party source on 03-Sep-2013

DOMAIN

  SPONSOR Easyspace Ltd [Tag = EASYSPACE]

  CREATED 2013-09-03

  CHANGED 2017-08-04

STATUS
Registered until expiry date.

NSERVER

  NS1.NAMECITY.COM 62.128.193.35

  NS2.NAMECITY.COM 84.22.161.171

  NAME speakerwizard.co.uk

DISCLAIMER
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Copyright Nominet UK 1996 - 2018.
You may not access the .uk WHOIS or use any data from it except as permitted
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which includes restrictions on: (A) use of the data for advertising, or its
repackaging, recompilation, redistribution or reuse (B) obscuring, removing
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register. Access may be withdrawn or restricted at any time.

  REGISTERED yes

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