ZK-HT21 2.1 Channel Audio Amplifier

[@Steven-vw9dz]

Untuk zk ht21 Pakai psu jaring 36V 20A tanpa dibagi dengan beban lain dengan kabel untuk speaker dan listrik transparan minimal ukuran kabelnya 2x80, R+L Curve 10inch 24h100suwpp middle 4 inch dan tweeter, subwoofer legacy1275-2 2ohm, hajar geber max volume dijamin tokcer.

[@BoostedPerception]

nice demonstration, thank you!

[@matiasvereertbrugghen7633]

nice, do you know if the sub output is already filtred?

[@BrightAudioSystems]

yes, and you can adjust cut-off frequency

[@Steven-vw9dz]

Can you try using 12 inch subwoofer 2 ohm impedance with 36 volt 10 amps power?

[@BrightAudioSystems]

Im not sure, but TDA7498E datasheet says>Overcurrent protection threshold R L = 0 Ω 11A. And recommended voltage is 36, max 40. I personally do not have 2ohm subwoofer. But in real life you will turn crossover to 30-60hz and you will newer use a maximal power for it, unless you have speakers which start from 200-300hz which is unreal in these days.

[@jejeykun6713]

I am already using my HT21 with 12 inch subwoofer ( embassy 12 inch 25hz - 500hz suport ) with 2 ohm impedance.. and the sound is really2 best low character of subwoofer , and it only use 19.5v 6.7A power supply ( power supply eks. laptop asus ROG original ) R/ L is using 3 inch + 8 inch ACR woofer

[@Steven-vw9dz]

@@jejeykun6713 may i know the complete specifications of the embassy 12 inch that you use including the type please

[@Steven-vw9dz]

​@@jejeykun6713can you try it by using 36V 10A power please?