DIY and Mods

Do-it-yourself and modification guides.

  1. The many cables of the ifi iDSD Black

    The many cables of the ifi iDSD Black Having owned this since late April, (thank you so much Pat for the opportunity to use and review this product!) I have had the pleasure of using this DAC with various home and portable audio products. Since there are so many reviews dealing with this product and its capabilities, I decided to show about its versatility. Therefore I will show you this DAC and the cables used to connect to the following items: Cayin i5, Pioneer XDP-300R, Astell & Kern AK...
  2. Superlux HD661 Anti-Sibilance and Comfort Mod

    Introduction: Superlux HD661 is Superlux's cheap clone to the Sony's legendary MDR-7506(Minus the Audio Technica Wing-Type headband). Due to Superlux carelessly aiming for the MDR-7506 frequency response(Since they could also aim for Balanced Frequency response because Sony designed the 7506 with refined mids), you will have to deal with the "Treble Cannon" nature of the HD661. Songs that has a very forward treble will be unbearable with this cans that you might throw them away. People are...
  3. Headphone Power Calculator Spreadsheet

    Here's a Headphone Power Calculator spreadsheet: You input your headphones' impedance and sensitivity (in either dB milliwatt or dB volt and it calculates the other sensitivity value). It also calculates the power and current at 1 volt rms. Input a target loudness and it'll give you the power, voltage and current required to get there using your headphones. You can also input an amplifier's Vrms rating and it'll give you the max headphone loudness and the power required to get there.  ...
  4. Headphone-to-Speaker-Amp Interface With Switched XLR + 1/4" TRS + 1/8" TRS

    The Robinette Box   Front panel features balanced 4-Pin XLR, 1/4" & 1/8" single-ended headphone jacks, 'Amp Mode Switch' and optional oscilloscope out BNC connectors.   The Robinette Box© is a headphone to speaker amplifier interface box which will connect just about any headphone with any amp (tube, solid state, balanced, single-ended). It's designed to electromagically match your headphones to a speaker amplifier's speaker output. Jump down to the Instructionsto see how the box...
  5. Headphone Resistor Network Calculator

    I have created a JavaScript webpage calculator and Excel spreadsheet that will help you optimize a headphone resistor network interface for your headphones and your speaker amplifier.  Instructions A headphone resistor network interface helps to electrically match a pair of headphones to a speaker amplifier's speaker terminals. The resistor network used on this page is the most commonly recommended headphone-to-speaker-amp resistor network interface. 1. Input your Headphone's Impedance...
  6. Senheiser HD 429 Bass Mod (*repost and redo )

    I brought this over ear headphones around 3 months ago. This Senheiser HD 429 bundled at exactly IDR 800.000 or around $80-$82, a mid class headphones that I buy because of curiosity and I’ve been longing for over ear headphones around that budget as well.   I am quite comfort with the sound quality actually, but I need a little bit power in it’s bass. Recently I’ve found article in the forum that it is possible to do a bit modification to the bass. So, I did just now. I got an extra...
  7. Sennheiser 449 Mod Possibly 4 8 Mod

    Not satisfied with your Sennheiser 449 ? Read this, Sennheiser 449 mod, boost your headphone - The best mod, granted! Hello folks, its been a couple months since ive done this mod. Last year i bought the sennheiser 449 over the internet without giving it a try. I thought.. well its sennheiser its good.. and it is (now with my mod). However it wasnt that good when i bought it. The lows and mids where fine (very good in fact). The main problem was the bass. It wasnt enough.. i could feel...
  8. DIY Cable Info and Resources

    The DIY forum sees a lot of the same questions repeated frequently. This article is meant to consolidate and table some of the information people can use.   (You can edit this article or PM me with recommendations, corrections, suggestions, or questions. Just keep in mind that I'm a cable-builder newbie, myself, so I probably won't be able to provide technical support or make detailed equipment recommendations. -- ardgedee)   Intro Connectors Wires Tools Resources Connectors Things I...
  9. Fostex T50RP modification summary LINKS - wiki

        Here is to be collected links to the most instructive posts on how to modify the Fostex T50RP, mostly from this thread: Just listened to some Fostex T50RPs today... WOW! [URL]http://www.head-fi.org/t/452404/just-listened-to-some-fostex-t50rps-today-wow[/URL]   This is not for "Thunderpants" - only modifications keeping the standard cups     ***************************************************************************************************************************** BMF:   BMF is...
  10. Sennheiser Hd4 8 Modding For Newbies

    So why did I create this thread? I recently mustered the guts to open up my HD438s to do some modifying, so yes I'm fairly new to modifying. I suppose this guide could help other newbies too. The methods in this thread have been covered in several other threads, but there was no thread dedicated to the modding of Sennheiser HD4*8 models so I thought I'd share.   The internals of the HD418, HD428, HD438 and HD448 are very similar, so I believe these mods will apply to all four headphones....
  11. Grado Pad Choices And Mods

    This Article discusses the differences between the various Grado pads available, as well as some of the more popular tweaks of these pads.   There are 5 main off-the-shelf pads for the Grado's/Alessandro's headphones:   S-cush "Comfie" Pads L-Cush "Bowl" Pads "Flat" Pads Sennheiser 414 Pads G-Cush "Jumbo" pads     S-Cush Pads: nicknamed comfies, true to their name, very comfortable, standard on the 60i, 80i and 125i and MS1. These pads allow for an increase in bass, but...
  12. Grado Modification Overview

    This Wiki page will provide links and other pertinent info for all the Grado/Alessandro mods discussed in the SR60-Mod, the SR60 Mod II and the Post Your Grado Mods threads.   The Grado/Alessandro prestige series headphones are open, entry to mid-level headphones popular especially for Rock music, but also for genres such as Jazz and Acoustic. They are known for their sparkle and lifelike highs, but are often noted as lacking in bass. Their real beauty is in the modularity of their design...
  13. How To Open Your Grado Headphones

    Introduction There are several reasons why you might need to open up your Grados. Maybe someone pulled on the cable too hard and something came loose inside, and now it needs to be re-soldered. Maybe you want to totally replace the cable with a longer/shorter/more-spendy cable. Or maybe you are interested in modifying your headphones to unleash even more Grado sonic goodness. This is the first step.   Further additions to this article are welcome.   (The content below was originally...
  14. Diy Lod Full Step By Step Do It Yourself Guide With Pictures

    Originally contributed by Parrots, thanks!   I remember when i first started making my own line out docks, even though there are some instruction here how to do it, I thought it could be a little clearer. I had to make a fellow head fi'er a LOD I promised him awhile ago at no charge so decided I would take some pictures and post a short guide here. What you need: Soldering iron Solder (with added flux) I find mundorf silver/gold to be the best. Wire (your choice) 3.5mm Jack plug...
  15. Grado Headphone Response Adjustment

    Welcome to the Grado Headphone Response Adjustement(s) wiki   As the need for a higher fidelity audio experience continues the headphone truly becomes a compact, somewhat inexpensive, and very portable solution. One such type of headphone is made by Grado Labs [URL]http://gradolabs.com/[/URL] . Over the years a need was seen for a single source of knowledge for various issues be it positive or negative regarding such headphones. This is where the knowledge can come together with an ebb and flow...
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