Identifying Amplifier Class - Kenwood KA-5050R

[pedwar]

Hi Guys,

Was after a bit of advice… A friend of mine has a Kenwood KA-5050R amplifier and is trying to figure out what Class it is (basically to know if it’s Class D and going to throw a wobbly if a high level sub input is plumbed in).

I don’t think it is from its weight and output but anyone else know an easy way to tell? (without measuring idle voltages etc.)

I can’t even see a complete service manual anywhere online for it :-(

these are the relevant amp specs I’ve found online:

Features:

• dynamic power output: 2 x 175 Watts / 4 Ohms
• Nominal power (DIN = sinus): 2 x 140 watt / 4 ohm, 2 x 95 Watt / 8 ohm
• MOS-FET power amp
• discrete amplifier with large power reserves
• Idle mode
• Power consumption: 160 watts
• Dimensions: 440 x 147 x 403 mm (width x height x depth)
• Weight: 12 kg

Any advice appreciated.

 

[rccarguy2]

 

[pedwar]

I’m betting that’s a similar amplifier inside just with the funky display etc.