One possibility to connect one compact 4 channel analog mixer to the analog mixer Lomeho AM GT-6

One possibility to connect one compact 4 channel analog mixer to the analog mixer Lomeho AM GT-6 *6 Channel Audio DJ Mixer Individual 48V 2 AUX Output Mixing Console 7 Band EQ 99 Effect USB Bluetooth Play Sound Table AM-GT6 *Professional Sound Mixer 4 Channel Stereo Low Noise Sound Mixer Function: Stereo/mono switching, volume control, for electronic guitar, electronic drums, electronic piano etc. Caution: ---------------- *Line mixer not Microphone mixer * Similar to (but not the same!) to professional DX400 Audio Mixer Stereo 4 Channel Audio Mixer 5V 2A USB Power Mixer for Recording Studio Console Stage * Similar to (but not the same!) to Behringer MICROMIX MX400 " ... Despite its ultra-compact size, the MICROMIX MX400 4-channel line mixer is really big on features! Providing the highest sonic quality at all output levels vs. the competition, the MX400 features ultra low-noise 4580 operational amplifiers for outstanding audio performance – the same chips as the ones found in its much bigger brethren....." * Similar to to Depusheng DX400 4 Channels Mixer Mixing Console Ultra Compact Low Noise Line Mono Audio Mixer with Power Adapter * Similar to Moukey Mini Audio Mixer Line Mixer, MAMX1 DC 5V, 4-Stereo Ultra, Low-Noise 4-Channel for Sub-Mixing, Ideal for Small Clubs or Bars, As Guitars, Bass, Keyboards Mixer, 2021 New Version-MAMX1 *Can be used with with Power bank.