Can any IEM be fitted with a custom mold? Have Sennheiser IE 800 s and wonder can a mold be made for these?

Have Senn ie800s iems. These have a 16ohm impedence with 125db sensitivity. Have decided on a dac, RME ADI-2. Would an amp be needed for this combo?

Have Senn ie800s iems. Have decided on a dac, RME ADI-2. Would an amp be needed for this combo?

Am using new ie 800 s. Listening from a Samsung S7 or a Apple Ipad via 3.5mm. I called Sennheiser CS regarding the HDV 820 to pair with the ie 800 s. Was actually told by the rep that pairing would be complete overkill. And I would not even be utilizing the amp section. So, what could I get to...

i guess I have really large ears. Have tried the Comply Large and the right ear fits just fine, the left constantly falls out. The Comply site has a " Large: 13.97 mm ± 0.50 mm (0.550" ± 0.020")" measurerment . Anyone know of a foam tip with a larger diameter?. Hate to return the IE 800 s due to...

Beside the Teac NT series, does any dac/amp include a network (lan) circuit for direct streaming direct to a dac/amp? Would love to be able to stream say Qobuz or Tidal to a dac/amp for late nite listening.

Have been searching the boards and can't seem to find a headphone dac/amp that can stream music from say Tidal, Qobuz etc. If anyone can point me to a source for equipment I"d be greatful. Or, can someone who uses their DAC/AMP for streaming, explain the best way to achieve this. edit: I have...