Approximately three years ago JVC released a bass-oriented bluetooth iem called the HA-XC90T. Given their well-established reputation as purveyors of legendary basshead machinery (see ha-sz2000), it appeared promising, or at least worthy of investigation. Mysteriously, however, only four...

I had both for a while. Never changed the pads though. In retrospect I wish would've tried swapping them out on my xb-1000s because I never felt like I unlocked their potential. They always seemed mysteriously flat for headphones with drivers the size of my face.

@Hawaiibadboy Lemme start by saying that I sorely miss your extreme bass adventures (you might remember one time you began walking me through the process of modifying a pair of ha-mr77xs). Now that the JVC SZ2000s have become a priceless rarity (the prices for used SZ2000s are astronomical!), is...

The JVC HA-MR77x's should be added to the list at once, as they were doubtlessly designed for this club. The 77x's exhibit a stark contrast between soul-shatteringly deep bass and suffocated midtones. The treble while also underrepresented, is not quite as pronouncedly recessed. Thus, this...

Would it be possible/beneficial to use a sound blaster e5 as a preamp for my fiio e-12 instead of my laptop's onboard sound in order to drive my SZ2000's? Are there any concerns or drawbacks to using an amp as a preamp? What happens when you amplify the signal multiple times? Some clarity would...