Best 4 Channel Class-D

[col]

I'm wondering which of the 4 channel boards has the best sound quality and is the best option for use in a bi-amp system using an active crossover?

I have a 41hz AMP-9-Basic using the Tripath TAA-4100a but the signal/noise is not good enough for home HiFi (tweeter hiss).

There are a few options on the market but I can't find if anyone has done any comparisons. Disappointingly, none of the 4 channel boards has speaker protection.

Maybe some DIYers have used the amps separately and care to comment? Maybe, we can compare in here.

Important Factors:

1. Signal to Noise ratio due to separate channels being dedicated to the HF.
2. Must be able to connect the ground on all 4 channels as this happens on the Active crossover board when you plug in the first RCA.
3. Single ended power, running off one of the Meanwell "brick SMPS".
4. Bang4Buck, otherwise might as well get 2 seperate 2 channel amps.

Contenders:

Sure Electronics 4 X 100Watt Class D Audio Amplifier Board – TDA7498
4 X 100Watt Class D Audio Amplifier Board ? TDA7498 _Class D Amplifier Board_Audio Amplifier and other Audio Boards_Audio_Sure Electronics' Webstore

Sure Electronics 4 X 100Watt Class D Audio Amplifier Board - TK2050
4 X 100Watt Class D Audio Amplifier Board - TK2050 _Class D Amplifier Board_Audio Amplifier and other Audio Boards_Audio_Sure Electronics' Webstore

Hifimediy T1X4, TK2050 4 channel STA508
Hifimediy T1X4, TK2050 4 channel STA508

There may be others?

col.

 

[PetruV]

id say Hifimediy T1X4, TK2050 4 channel STA508 because it looks better built