Qtx KAD-2 User Manual

KAD-2

DIGITAL STEREO AMPLIFIER with BLUETOOTH™

Item ref: 103.122UK

User Manual

Specifications:

Power Supply 230Vac, 50Hz (IEC)

Output Impedance 4 - 8Ω

Output Power (8Ω) 2 x 25W rms / 2 x 40W max. (EIAJ Standard @ 1kHz 10% THD)

Output Power (4Ω) 2 x 35W rms / 2 x 55W max. (EIAJ Standard @ 1kHz 10% THD)

Input sensitivity : line 380mV

Input sensitivity : mic 15mV

Dimensions 200 x 200 x 65mm

Weight 1.6kg

103.122UK Manual

Thank you for choosing this QTX KAD-2BT stereo amplifier. This compact class D digital amplifier is
capable of delivering a powerful 55W max output per channel. With 4 selectable inputs, 2 mic inputs and
various controls, this is a great multipurpose amplifier for both domestic and commercial use.

Product layout:

1. Power switch

MEDIA PLAYER:

2. SD card slot

3. USB memory stick slot

4. Volume down/Previous track

5. Play/Pause

6. Volume up/Next track

7. Input selection

8. Input display

MAIN UNIT:

9. Volume control

10. 6.3mm jack microphone input

11. Aux input, 3.5mm jack socket

12. Rotary input selector

13. Input bass level control

14. Input treble level control

15. Microphone input echo effect

16. Microphone input tone control

17. Microphone input level control

18. RCA stereo line inputs

19. Spring clip for FM antenna

20. Spring clip speaker output

21. IEC mains input

Impedance Matching:
KAD-2BT is capable of 4-16Ω impedance output if more than one speaker is to be connected to the
amplifier per channel. Please ensure the total impedance of the speakers are within the range.
Speakers can be wired in two different ways, in parallel or in series. The total impedance can be worked
out by the following formulas for the two different ways of wiring:

Parallel Connection - 1/R

total

= 1/R1 + 1/R2 + 1/R3…….