The Stereo Power 250 is intended to perform different tasks when that is needed. It can be used to power different bi-amped setups, stereo setups and act as a powerful 500W mono amp. So if you play in many different situations with different setups this would be a practical alternative.The Hellborg Stereo Power 250 has an output of 2x250 watts, and the output impedance is selectable (2, 4 or 8?) for each channel. Furthermore, the amp can be driven in bridged mode with 1x500 watts at 4, 8 or 16. Technology Bipolar Power Amp with Speaker Output Transformer Connectors: ¼" for Channel I & II Sensitivity: 0dBu Impedance: 5k Clip: LEDs that indicates clipping Frequency Response: 25Hz to 16kHz, -3dB SNR: > 70dB * THD+N @ 1kHz: < 0,1% underrated power Connectors: ¼" and Lockable Coaxial Speaker Connection Rated Power: 2x 250 watts @ 2, 4 or 8? (Stereo) 1x 500 watts @ 4, 8 or 16? (Bridged) Voltage Selector: 115V / 230V * Output Mode: Stereo / Bridge