Model Number: TX-460 Brand Name: SHIYA Key Specifications/Special Features: Features:1.Class V power modules.2. Super power efficient and stable switching power supply.3. XLR input and signal link connectors.4. Speak ON NL4 and binding post output connectors.5.Routing mode selector on the back panel(stereo / bridge / parallel).6. The whole machine is equipped with a high speed protection of intelligent all direction electronic circuit.7. Channel independent protection and clip warning indicators on the front panel.8. Fresh and sweet sounding characteristics. Specification TX-460 TX-4100 8ΩStereoPower 4x600W 4x1000W 4ΩStereoPower 4x900W 4x1500W 2ΩStereoPower 4x1200W 4x2000W 8ΩBridgedmonooutput 1800W 2300W FrequencyResponse 20Hz-20KHz(±0.5dB) THD Crosstalk >70dB@8Ω1KHz InputImpedance 20KΩ(Balanced)/10KΩ(Unbalance) InputSensitivity 1.0V/1.4V/2.0V Protection Shortcircuit,opencircuit,thermal,RFprotection.ON/OFFmuting,DCfaultshutdown,activeinrushlimiting. Dimensions 48.3x41.7x8.9cm Weight 12.5kgs 13kgs