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Diamond dome tweeter
For enhanced performance
ensuring an unhindered signal path
lively treble
Every note
Pre-owned D'Agostino Progression M550 Early Build Monoblock Amplifier Integrated Diamond dome tweeterUsed Model Pair Connect with us for more details or to make this piece your own Shop Directly at Echo Request More Info Every so often, a piece comes through that the spec sheet doesn't fully explain. This is an early Progression M550. The full M550 circuit. The full M550 power supply. Built before the second generation chassis arrived with its larger heat sinks. D'Agostino made it this way and that is the part that matters. The amplification is all
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