Topping has released a new headphone amplifier model L70 , made in a symmetrical design and also capable of working as a pre-amplifier.
The amplifying part is made using proprietary NFCA (Nested Feedback Composite Amplifier Module) modules , which use hybrid voltage and current amplification. This circuit provides high output power – up to 7500 mV into 32 ohms – and extremely low harmonic distortion and noise.
To connect headphones, the model has a four-pin XLR connector, a balanced 4.4 mm output and an unbalanced 6.35 mm output. The output impedance does not exceed 0.1 Ohm , the user can choose between two levels of gain.
The Topping L70 Headphone Amplifier sells for $349 worldwide .