To me they look very much like Fischer Audio FA-004
- Frequency range: 20-20000 Hz
- › Sensitivity: 104 dB
- › Impedance: 32 Om
- › Input power: 180 mW
- › Length of a cable: 0 M
- › Color: black (Bk), brown (Br).
- › Box:
- › Set: 6.3 mm jack adapter
Pics of Brown version.
Even the accessories are similar: MP-68 comes fully equipped with 1,3 m cable and 3,5 mm stereo plug together with a 2,5 m extension cable including a 6,3 mm stereo plug (adapter).
Specs aren't identical, but have similarities.
The Ace of Sweden is half the price of the FA-004