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  1. AudioCats

    Creative Sound Blaster E3 mod / adaptation (?)

    linked the BCK, Data and WS lines to a TDA1543 and got music signal out of the 1543 (and the PCM5122 at the same time). BlueTooth NOS DAC, anyone?
  2. AudioCats

    What kind of Headphone is Stevie Nicks wearing?

    and this one looks to be a David Clark aviation headset without the mic?
  3. AudioCats

    What kind of Headphone is Stevie Nicks wearing?

    what is in this video, some kind of AKG?
  4. AudioCats

    Bose QuietComfort Headphones Mods & Conversions

    Driver upgrade, Level-2, Nhoord-Red The result of iGrado drivers made me curious of how higher grade drivers might sound in the QC2. And I have some Nhoord-red laying around.... The primary issue from the iGrado driver experiment was that the bass being too strong, border-line boomy. And it is...
  5. AudioCats

    Bose QuietComfort Headphones Mods & Conversions

    Craftsman, do you have a link to your deadening/damping mod? Or would you mind re-post them in this thread? Thanks
  6. AudioCats

    Bose QuietComfort Headphones Mods & Conversions

    Audio Inputs: the socket module has a 4-wire ribbon. in the photo, from top down: connects to the tip, not sure what it is for right left (red wire) ground the left signal goes through a 20 ohm resister and to a 2.5uF ceramic capacitor (circle in red in the photo) the right...
  7. AudioCats

    Bose QuietComfort Headphones Mods & Conversions

    Driver upgrade, (using iGrado drivers) continued Looks like the max allowable driver size is around 44mm; But to use such drivers the partition wall in the cup will need to be removed. And... it turned out that the iGrado driver will fit the baffle without needing to trim off the little...
  8. AudioCats

    Audio Technica AT-PHA50BT bluetooth amp modifications

    took the four purple film caps off and soldered on some 28awg wires. The film caps did not break during the desoldering (used a pair of thermal tweezers).  
  9. AudioCats

    Reply to review by 'audiocats' on item 'Audio Technica AT-PHA50BT'

    a couple of points:   * The PHA50's presentation is very layback. It might be voiced toward earphone/IEM use, sounds quite nice with my Earsonic SM3 IEM, no "in the head" feeling.   ** PHA50's "virtual surround" effect: turn on the effect and the sound becomes a lot more spacious, probably from...
  10. AudioCats

    New DIY Altoids Tin Amp - The Pocket Class A "Wintergreen Handwarmer" by xrk971

    SMD soldering is not a problem for me, but I can see some people might hesitate because of it (especially if they don't already have a fine tip soldering iron).   I guess what I was trying to say was that an oversized thru-hole version, being super easy to build, might gain more popularity.  (...
  11. AudioCats

    New DIY Altoids Tin Amp - The Pocket Class A "Wintergreen Handwarmer" by xrk971

      All-thru-hole will be a lot more diy-able for many people, though. Maybe a desktop version that is powered off USB? Losing the batteries can yield quite a bit of extra room, the thru-hole board can probably still fit into a tin. Many might (eventually) want to upgrade the input and output...
  12. AudioCats

    FiiO Q5, Flagship DAC/Amp, an Dual DAC, USB/Optical/Coaxial/Line in, share the same amp module with X7.

    maybe include a low-profile low power headphone amp module (that is just powerful enough to drive IEM's) as default config? IEM users (and line-out users) will appreciate the smaller over-all size; Users of larger phones still have the option to change it to the bulky high-power modules.
  13. AudioCats

    SkullCandy Hesh-2 Bluetooth Headphones Mod thread

    I guess what I was trying to say is..... the SR drivers sound quite ok in the L-3-SR, considering this is a bluetooth phone (which I have rather low expacation/requirement). Not sure if it can still be considered as "ok enough", once the bluetooth "excuse" is taken out.
  14. AudioCats

    Huge Comparison of [almost] all the Best Bluetooth Headphones - post your own comparisons here

    how good is the amp section of the soundblaster? (when used as just a headphone amp)
  15. AudioCats

    Huge Comparison of [almost] all the Best Bluetooth Headphones - post your own comparisons here

    heavy but clean bass is good. How is the comfort factor? comparable to DT770/HD600?
  16. AudioCats

    Bowers & Wilkins P7 Wireless - Impressions Thread

    how comfy is the P7 wireless? (comparing to HD580/600 or DT770/880/990)
  17. AudioCats

    Huge Comparison of [almost] all the Best Bluetooth Headphones - post your own comparisons here

      Thanks. How good is the B&W P7, comparing to cabled phones? is it at the HD580 level? DT770 level?
  18. AudioCats

    SkullCandy Hesh-2 Bluetooth Headphones Mod thread

      Level-3-SFI   * drivers are orthodynamic SFI tweeter, 32 ohms * sound output is very very low. Even at the highest volume setting it is not loud enough to get the "rock" feel. * very bright, though that can probably be ameliorated by different damping. * good vocal. * bass is weak but...
  19. AudioCats

    SkullCandy Hesh-2 Bluetooth Headphones Mod thread

    Probably the stuffing. In my experiment these SR drivers seem to like 1.5 gram stuffing per cup (1 gram sounded hollow and 2 gram sounded lifeless). Of course changing the cup size might change everything as well. And the ear pad size also matters, I tried a larger oval pad with the L-3-PX and...
  20. AudioCats

    Huge Comparison of [almost] all the Best Bluetooth Headphones - post your own comparisons here

    SkullCandy Hesh wireless has ~3cm deep pads. The refurb ones usually go for <$50 on ebay.   It does require modification, though, the stock sound is too boomy.
  21. AudioCats

    Huge Comparison of [almost] all the Best Bluetooth Headphones - post your own comparisons here

      any photo of the internals? (we need a " what is inside a Bluetooth phone" picture thread in the DIY section.)
  22. AudioCats

    The Beyerdynamic Tesla DT 1350 Impressions thread

    is there any comparison review on DT1350 vs DT250?
  23. AudioCats

    DT990 Bad Driver?

    That was $80 a pair, right?   Does Beyer USA have a parts ordering web page? price list? Do they sell DT1350 drivers?
  24. AudioCats

    SkullCandy Hesh-2 Bluetooth Headphones Mod thread

    https://en.wikipedia.org/wiki/High-pass_filter   The output cap and driver form a high pass filter. The #'s I wrote are simplified theoretic values (since the driver is not a resistor, its impedance varies across the audio frequencies). Treat them as ball-park figures.
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