The new MK version can bypass preamp section to allow you use the unit as a dual mono power amp. 

Shengya is renowned for it's high-bandwidth, fast paced and accurate articulation amplifiers. The A-203 is their flagship integrated Class A amplifier. Conservatively rated at 100 watts class A /ch the A-203 will drive any speaker on the market with ease while retaining the grace to perform delicate music on higher efficiency speakers.

The A-203 was first introduced to the market in 2006 during Shengya's 15th anniversary. Over the past 3 years, the design has been perfected through customer feedback from Asian audiophile market and Grant Fidelity. 

The A-203 has ShengYa's typical dead quiet background, which allows for an accurate soundstage to be developed and hold the imaging accurately within the soundsstage. The A-203's excellent dynamics are noticable at all volume levels, something you rarely find in ShengYa's competition. 

Features: 

• Pure Class A with 100 watts per channel (8ohm) and 200 watts per channel (4ohm)
• Huge aluminum heat sinks to dissipate Class A heat super efficiently 
• Hollow front poles for user to adjust in-fill density and quantity to tweak performance
• 3 isolation feet to allow the amp to be situated steady on any hard surface
• Divided internal chassis to minimize the amp's internal interference
• Oversized 800VA low noise Shengya signature transformer
• 120,000uF Rubycon audiophile capacitors
• Super high speed custom D/C chip
• 1% metal file transistor and MKP for audio capacitor
• 5 sets of RCA inputs plus 2 sets of XLR inputs
• 4 sets of speaker connectors sufficient for bi-amping playback

Specifications: 

• Frequency Response Range: 10Hz - 20kHz, +/-0.5dB
• RMS Output Power: 100w x 2 (Class A, 8ohm)
•                                 200wx2 (Class A, 4ohm)
• THD: <=0.1% (1kHz, 1W)
• Input Sensivity: 280mV
• S/N Ratio: 90 dB
• Input Impedance: 47kohm
• Size: 18.3" W x 17.7" D x 8.5" H
• Net Weight: 33kg / 73 lbs