Leema Acoustics Hydra 2 Amplificador de potencia **USADO**
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Borrowing heavily from developments pioneered in the Leema Reference Series Altair IV mono power amplifiers, the Hydra 2 is not only a notably more accomplished amplifier than its predecessor, this technological chameleon is uniquely able to act in a multitude of roles, always creating a life-like sound stage and maintaining the colour, texture and timbre of the original performance.
Exceptional dynamic range, resolution of exquisitely fine detail and remarkable clarity allow the Hydra 2 to deliver music with life-like verve, even when driving the most demanding of audiophile speakers. This exceptional design uses two massive torodial power transformers: one for each channel, together with a third transformer for the control circuitry. The highly refined output stage features a very low output impedance. This, coupled with a high current capability ensures vice-like grip and precise control of the loudspeakers, even at very high levels.
Leema's Intelligent Protocol System, LIPS® allows the Hydra 2 to act alongside the multiple award-winning Tucana II. For example: Hydra 2 could drive the surround channels in an extremely high-performance multi-channel system. LIPS® also allows the Hydra II to perform as a slave to the Tucana II in a bi-amp or even tri-amp set-up, providing a substantial upgrade in performance over that of the Tucana II on its own. By far the most outstanding role that the Hydra 2 can perform is in a pre / power combination with the Reference Series Pyxis pre-amplifier. The Pyxis sends a full level audio signal to the Hydra II at all times; the volume and balance are adjusted within the Hydra 2 using the LIPS® control signals from the Pyxis. This Leema-developed system gives superior performance by minimising the effect of induced signals within the interconnect cables, further enhancing the already outstanding abilities of the amplifier. Of course the Hydra 2 can also be configured as a standard fixed gain power amplifier for use with conventional pre-amplifiers from other manufacturers. When used with the Leema Antila CD player, the Hydra 2 can even perform as a single source amplifier; the volume setting being controlled within the Hydra 2 via LIPS® and adjusted using the Antila's remote control.
In addition, rear panel switches on the Hydra 2 select use as either a stereo amplifier, a left or right channel mono amplifier, or even as a two channel amplifier designated as left or right. In this mode the system is acting as a bi-amped set-up in which the amplifiers can be placed behind the speakers allowing short speaker cable runs. In every one of these roles, the Hydra 2 can be bridged to become a mono amplifier providing even more power, agility and the ability to drive virtually and loudspeaker on the market to realistic volume levels.
| Frequency Response +/- 3 dB @ 1 W | 5 Hz - 80 kHz |
| Output Power into 8 ohms (stereo) | 160 W RMS per channel |
| Output Power into 4 ohms (stereo) | 270 W RMS per channel |
| Output Power into 2 ohms (stereo) | 390 W RMS per channel |
| Output Power into 8 ohms (mono) | 540 W RMS |
| Output Power into 4 ohms (mono) | 785 W RMS |
| Minimum load impedance (stereo) | 2 ohms |
| Minimum load impedance (mono) | 4 ohms |
| Noise (A weighted, minimum volume) | -100 dB |
| Signal to noise ratio (A weighted, ref: 270 W RMS, 4 ohms, stereo) | -104 dB |
| T.H.D. (10 W RMS, 4 ohms, 1 kHz) | 0.004% |
| T.H.D. (Max output before clipping, 4 ohms, 1 kHz) | 0.004% |
| Maximum DC offset | +/- 15 mV |
| Sensitivity for maximum output | 311 mV RMS |
| Output impedance | 0.04 ohms |
| Damping factor (8 ohms) | 200 |
| Dimensions (W x H x D) | 440 mm x 110 mm x 320 mm |
| Weight | 18 kg |