Donner EM1 Personal In-Ear Headphone Amplifier

Features

High power: High power of headphone amplifier suited for high impedance professional headphone, make sure there is enough volume in noisy surroundings. (Don't support microphone)

Professional in-ear monitor: Outstanding technical, sonic characteristics, high audio reproduction and no audio rendering for professional personal in-ear monitor.

Practical interface: XLR and TRS input connector with locking mechanism, Stereo/mono source switch depending on cable connection

Strong endurance: Runs up to 12-hour long life Li-ion battery. Power and battery charging control with Led indicators

Easy to carry: Solid metallic belt-pack clip,High-tech, compact and portable designs for taking everywhere


EM1 is a rechargeable and portable personal in-ear monitor amplifier specially designed for stage musicians. The outstanding technical, sonic characteristics, high audio reproduction and no audio rendering were translated into a more compact format to EM1, so that you can clearly hear the sound of playing on stage anytime and anywhere.

Whether you're a drummer, keyboard player, Vocal, or other musicians, EM1 is an excellent stage partner. Meanwhile, EM1 is also applied to practicing instrument, studio recording as audio monitor with high power and volume.

XLR and TRS Input
XLR and TRS input connector with locking mechanism, Stereo/mono source switch depending on cable connection.XLR and 1/4” TRS input connector with locking mechanism，for connecting input signals. When the XLR is connected to balanced input, EM1 will output in the way of balanced mono. When the TRS is connected to unbalanced input, EM1 will output in unbalanced stereo.

Up to 12-hour long life
Micro USB Type C jack，connects the cable of Micro USB Type C for charging, DC 5V, 1A above current. The LED indicator will show red indicating it is charging. 1/8” TRS headphone output, for connecting the headphone. It is recommended to use 8 Ω - 250Ω impedance headphones, in order to obtain better result.
Analog circuit design

EM1 is a rechargeable and portable personal in-ear monitor amplifier specially designed for stage musicians. The outstanding technical, sonic characteristics, high audio reproduction and no audio rendering were translated into a more compact format to EM1, so that you can clearly hear the sound of playing on stage anytime and anywhere.


1/4” TRS Impedance
10K
XLR Impedance
20K
Headphone Output Impedance
10Ω
Max. Input Level（dBu）
+2dBu
Max. Output Power
125mW@32Ω
Noise（A-weighted）
-77dB
THD&N
0.001%
Dynamic Range
96dB
Current Draw
70mA
Li-ion Battery
1000mA/H
Charging Duration
About 4 hours
Battery Life
> 12 hours
Dimensions
103.4mm(D)*41mm(W)*40.7mm(H)
Weight
95g
Accessories
Micro USB charger cable. 1/4” TRS to 1/8” TRS Stereo Audio Cable Male to Male. Owner’s Manual.