Group Buy on Merlin MD-21 and AX-600DE and possibly the AXTU600C. US Amps have decided to end the Merlin line a little while back. There are few new left in existence. We, the SSA Store, can do a short group buy on the Merlin MD-21 & AX-600DE & AX TU-600C. The MD-21's are excellent smaller 2 channel amps, the AX600DE is a high end small footprint mono block and the AX TU600C are tube 4 channel amps, once they are gone. Now this topic is to gauge if people are actually going to do it, DO NOT POST IF YOU ARE WINDOW SHOPPING! Merlin MD-21 PWR: 75x2@4, 100x2@2, 200x1@4 THD: 0.03% at rated 4 ohms Damping Factor: >600 Fuse Rating: 30x1 Voltage Range: 12v-16v DIM (WxHxD): 7.9 x 2.5 x 8.75 AX-600DE THD: <0.25% @ 4ohms S/N Ratio: >95dB Frequency Response (+0, -16db): 5Hz~20KHz Damping Factor (@ 4ohms/50Hz): >600 Input Range: 200mV~9V 250W x 1 @ 4ohms 400W x 1 @ 2ohms 700W x 1 @ 1ohm AXTU600C 75W x 4 @ 4O 90W x 4 @ 2O 180W x 2 @ 4O mono Bridged Output: 600W X 1 @ 4O THD @ 4O: <0.05% S/N Ratio: >95 dB Damping Factor: >600 Dimensions: 2.7 x 11 x 16.1 Inches Slew Rate: 150 Vus Group Buy rough details: If there is real interest and more then 10 people with money in hand, the pricing would be: MD-21 (~30 Units left): Normal MAP pricing: $265 Group Buy pricing: $165 AX-600DE (~4 units left): Normal MAP pricing: $615 Group Buy Pricing: $279 AXTU600C (~25 units left): Normal MAP pricing: $875 Group Buy pricing: $425