THXAAA-888 Headphone Amplifier with THX AAA Technology；

Ultra-Compact Design, Perfect for Desktop Systems；

Balanced Stereo Headphone Output ；

Pre-amplifier application ；

Balanced Stereo Line Input；

High Precision Resistors for Temperature Stability ；

Pop-less Design with High-Quality Relays；

High precision and low noise 256 level relay volume control；

*In actual use, in order to make the volume more linear, the extra levels are shielded.

12 Watts into 16 Ohm, 6 Watts into 32 Ohm ；

0.1 Hz to 500 kHz(-3dB) Frequency Response ；

3 Positions Switchable Gain Control ；

Fully Protection with DC, Over-Voltage, Over-Current, Short-Circuit and

Thermal Protection on Headphone Amplifier ；

High-Efficiency Ultra-Low-Noise Power Supply .

1.9 inch LCD display.

Fully Balanced THX888 design

SP400 not only features THX888, but also uses many 0.1% high-precision low temperature drift resistors and components in the design. The PCB uses 6-layer immersion gold circuit board, and dual customised power modules provide stable and reliable power output guarantee. All the cost is only to achieve the desired HIFI sound quality, lower distortion, and listen to the true and natural expression. SP400 is not only first-class parameters, the sound goes to the next level!
THX has patented feedforward error correction technology, lower sound colour and low distortion, which makes the listening experience real and natural.

CNC Precision Machining Aluminium Housing

By using anodising technology and the chamfering process, the unit has a high-end appearance which is exquisite and durable.

THX888 circuit design

THX patented audio amplifier circuit (THX AAAtm) 888 is linear double amplifier circuit with feedforward error correction technology. Eliminates the distortion mechanism of traditional amplifier circuits, reduces harmonics, intermodulation and crossover distortion. The headphone output jack is made in Japan and the preamp output is fully balanced. The volume control is a high precision 256 level relay. Using two pieces of customised 24W high-efficiency low noise power supply guarantees excellent audio performance and output efficiency.