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m o n o p o w e r a m p l i f i e r s
overview and specifications
The EAR 509 mono amplifiers are simply fantastic. Build quality is excellent, power in abundance, and a breathtaking performance with emotion, transparency and presence. Listening to music with the EAR 509's is a soul stirring experience. Super quality UNIQUE transformers are used for the 509, one of the reasons why they sound so stunningly good. RCA or XLR inputs are available (both with an input level control at the rear of the chassis)
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Valves employed are 2 X PL519, 1 X ECC85 and 2 X ECC83 per amplifier. These amplifiers supply power, finesse, speed and emotion all in one hit ! |
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The EAR 509 mono amplifiers are visually pleasing. As with all EAR products, build quality, ease of use, and reliability are priorities. |
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The inside story... |
Above, you can see a pair of EAR509 mono amps tested and waiting for shipment.
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| SPECIFICATIONS | |
| Power Output | (20Hz-20KHz<0.25% THD into Rate Load)...100W |
| Frequency Response | 8Hz-30KHz............+0-1dB |
| Frequency Response | 3Hz-80KHz..........+0-3dB |
| Power Bandwidth | -3dB,0.5% THD.......12Hz-60KHz |
| I.M.D. | at any level from 100mW-100W equivalent power...<0.2% |
| Output Damping Factor | (0.4ohm + 4uH)....20 |
| Signal to Noise Ratio | down from 100W.......96dB |
| Input Sensitivity | (Unbalanced).........1.2V |
| Input Impedance | (Unbalanced).........25Kohm |
| Power Consumption | ...................180V.A. |
| Weight | .....................18kg |
| Size | 12"(30cm)W........10"(25.4cm)D.......6"(15cm)H |