Passive headphone filters

updated: May-03-2021

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Each filter is purpose made for a specific headphone (see list below) and can NOT be used for other headphones. There thus is no ‘universal’ filter.

Passive filters can ONLY attenuate. (Substantial) peaks in frequency response are far more sound degrading than dips. This is what these filters do they remove emphasis and bring it down to the proper level.

The picture below shows what built filters can look like.

The filters are not available from stock so it may take a while before I have time to make you one. It could take up to a week before it can be shipped. Parts may not always be on stock which can increase the waiting period before it is delivered.
There is no obligation to buy when contacting me.

Since I buy parts in small quantities from E.U. sellers and everything is hand-built by me I cannot offer these filters for Chinese-made prices alas nor offer Chinese shipping costs.

Depending on the used connectors and shipping method and destination expect the total price of a filter (incl. shipping) to be somewhere between €35.- and  €60.-

Rules:

The used cable brand is Sommer Cable (Germany). It is a good quality cable and available in red, blue or black. No other cable brands types are available, also not on request.
Various lengths can be ordered, the minimum length is 25cm to 30cm depending on the used connectors.

There are only a few type of 3.5mm and 6.3mm and 4-pin XLR connectors available and a 3-pin mini XLR (AKG, Beyerdynamic) which are listed below. No other brands or types of connectors will be used.

Everything is handmade so can have some cosmetic impurities/flaws here and there.
This is not a factory made product with subsequent pricing.

The filters alone cost between € 20.- and € 33.- depending on the used connectors. (note: shipping costs are NOT included in this price and need to be added).
There are a few shipping options available. Prices for shipping need to be added and range from € 8.20 to € 25.- depending on weight, tracking, registered or not and destination and shipper.

Payment is due when the filter is commissioned. Within EU IBAN bank transfer is possible as well as PayPal.
Because of PayPal fees the price will be about 4% higher when paid with PayPal.
Outside the EU payments using PayPal is the only option (payment in Euros).

There is no receipt with VAT nor other material specifications. Building these filters is a labour of love (costs a lot of time to make it).
Some parts may not be on stock which can increase the waiting time before it is finished.
As I order parts in small quantities only (within Europe) prices, alas, are not ‘Chinese’ nor are the shipping costs I am afraid. Allow some time for the filter(s) to be made.
Depending on the used connectors and shipping method and destination expect the total price of a filter (incl. shipping) to be somewhere between €32.- and  €50.-

Alas, shipping outside is only possible signed for and insured. On specific request filters can be sent not signed for and not insured to some countries.
DHL shipping is only possible for some EU countries.

how does this work

This is not a webshop so when interested in a (listed) filter you need to contact me (solderdude) via e-mail.

What I need to know are the following things:

  1. The filter you need. (choose from the list of available filters below)
    The filter parts incl. assembly but excluding connectors and shipping is € 17.50 
    note:
    when you want a specific or custom filter made for a not listed headphone simply contact me.

  2. Which (male) plug you want (the plug that goes into the amplifier/player/phone).
    You can choose from this list of available connectors only.
    When in stock I can also make filters using 2.5mm TRRS for balanced connections.


  3. The cable length you want (min. 25cm) in meters (€ 2.- / meter) and cable color (red, blue or black for TRS, black only for XLR-4pin)

  4. The (female) socket you want (where your headphone plug goes into)
    You can choose from this list of available connectors only.
    Note: I do not have any goldplated 6.3mm TRS sockets.
    When in stock I can also make filters using 2.5mm TRRS for balanced connections.

  5. The preferred shipping method (your choice, discuss this in e-mail):

    Signed for and insured (price depends on weight)
    Contact me for shipping quotation as it varies from country to country, shipper and type of shipment. Shipping costs vary between €8 and €30 as a rule.

    For Germany and some some other E.U. countries DHL is also possible. Costs will be between € 12.- and € 16.- depending on destination. Do note that DHL parcel shipping is NOT INSURED.
    DHL Express delivery is also possible but is quite costly.

    Note: Due to Covid 19 transit time is often much longer than usual and outside of EU can take up to 2 months !

  6. Your name, address, e-mail etc.

  7. The preferred payment method.
    IBAN (within E.U.), when using PayPal (add 3.5% + €1.00)
  1.  

Again, as this is not a webshop there is no ‘buy now’ or ‘order’ button.
You need to contact me via e-mail and simply tell me what you are looking for or want to know.

Depending on the used connectors and shipping method and destination expect the total price of a filter (incl. shipping) to be somewhere between €32.- and  €50.-

 


A few schematics for DIY’ers

The schematics below are from just a few filters. When you want the schematics for any of the filters listed above please contact me


Below the filter schematic for the HIFIMAN Edition Xv2, Edition XX, HE-400S and Ananda

FILTER Edition XX


Below the filter schematic for the HIFIMAN HE400i HE400i (HE4XX) filter schematic


Below the filter schematic for the HIFIMAN SundaraSundara filter schematic


Below the filter schematic for  the HIFIMAN Arya


Below the filter for the NAD VISO HP50

filter schematic


Below the filter for 1More Triple Driver Over Ear Headphones.

1MTDOE filter schematic

Below the filter for Beyerdynamic DT1990 , DT1770 (when fitted with DT 770 pads)  and Amiron Home



Below the filter for the Master & Dynamic MH40

filter

Takstar Pro82 (earlier version)

Pro82 old filter


Below the filter for the Sennheiser HD58X and HD660S

FILTER HD58X

Below the filter for the Sennheiser HD800


Below the filter for the Sennheiser HD800S

 


Below the filter for the Beyerdynamic DT880 Black Special Edition


Below the filter for the Beyerdynamic DT880 600Ω


Below the filter for the AKG K712 / K7XX


Below the filter for the AKG K812


Below the filter for the AKG K612, K701, K702

 


Below the filter for Grado SR60/80/125


Below the filter for the AKG K371


Below the filter for the Audio Technika ATH-MSR7


Below the filter for the Shure SRH840


Below the filter for the Shure SRH1840


Below the filter for the Sennheiser HD560S


Below the filter for the Focal Utopia


Below the filter for the Yamaha MTH220


Below the filter for the Audeze Sine with Vesper Audio over ear pads

 


Below the filter for the Audeze LCD2 Closed Back.


Below the filter for the Audio Technica ATH-SR9.


HIFIMAN HE560(v2) filter

 


Beyerdynamic DT990-250 filter


 

Superlux HD330 filter

 


Superlux HD660 Pro filter


 

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