Leema-acoustics Hydra Handbook - Hydra
MULTI 1> In a full surround system consisting of a Tucana, Hydra and Corvus, Multi 1 is used to connect the analogue outputs of
a multi-channel source such as a DVD-A, SACD or DVD player equipped with onboard multi-channel decoding. In such a system
the front left and right outputs from the source machine would connect to the Multi 1 inputs of the Tucana. The machine’s
surround left and right outputs would then connect to the Hydra’s Multi 1 inputs. The remaining centre and subwoofer outputs
from the source machine connect to the corresponding inputs on the Corvus.
MULTI 2> The Multi 2 inputs operate in the same way as Multi 1and may be used for a second multi-channel machine.
OUTPUTS:
PRE OUT> The Pre out connections mirror the selected system input e.g CD, or Multi 1. These outputs are controlled by the
Tucana’s volume control and can be used for a variety of uses. In a surround system they would be used to feed the Corvus’
side surround extraction inputs. Other examples include feeding a second amplifier in another room for a simple multi-room
system, or as a line level feed to one or two subwoofers.
BI-AMP> This connection is provided for those who may wish to bi-amplify a Hydra, for instance the surround channel Hydra in a
home cinema system could be bi-amplified. In this scenario use the Bi-amp outputs to connect the second Hydra’s AV inputs.
In a bi-amp Leema system, Tucana is used to drive the tweeters in the loudspeakers and a Hydra is used to drive the woofers.
This offers an increase in clarity by reducing intermodulation distortion. The loudspeaker no longer draws bass current from the
amplifier feeding the tweeter, resulting in cleaner high frequencies etc.
The loudspeakers must be suitable for bi-amping, this is normally the case where there are two pairs of binding post connections
available on the rear of the loudspeaker cabinets. When bi-amping, it is Vital to remove the bridging links from the connection
panel on the rear of the speakers, otherwise the outputs of the two stereo amplifiers will be connected together which will result in
considerable damage. If you are considering bi-amping, please contact your dealer or Leema Electro Acoustics Ltd. for
advice.
Connections
HYDRA
8