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Genesis Advanced Technologies 1.1 owner manual 1.5Crossover Connections, ~ÄëçäìíÉ=ÑáÇÉäáíó

Models: 1.1

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1.5Crossover Connections

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The preferred connection is to attach the bare wire on the Servo-Bass Interconnect to the midrange INPUT binding posts on the crossover box. This way, the Servo-Bass amplifier will “see” the same musical signal as the midrange/tweeter crossover, resulting in the most coherent crossover between the upper bass and lower midrange.

We prefer the second method. This will allow everything in the chain up to the Genesis 1.1 crossover box (including all electronics and cables) to be taken into account.

However, there are some systems that do not allow this. Some power amplifiers have BOTH positive and negative outputs at a significant potential above ground. Examples include some Class D designs. Other power amplifiers are significantly deficient in the bass, like single-ended triode designs. In both these cases, connecting the servo-bass amplifier to the preamp is the lesser of two evils.

1.5Crossover Connections

The cross-over boxes have three pairs of input and output connectors each. They are (from left to right) front tweeters, midrange and rear tweeters. The top row of connectors are the inputs and the bottom row are the outputs. These high quality binding posts from Cardas will accept either banana plugs or spade connectors.

The crossovers are designed

in three electrically separated parts so that the G1.1 can be tri-amplified with identical amplifiers. Do NOT use a low- powered SET amplifier for the tweeters, and a high-powered solid-state amplifier for the midrange. You will ruin the spectral and phase coherency of the G1.1.

A pair of jumpers with banana plugs at one end and spade connectors at the other end are provided to get you started if you only have a single channel of amplification. In that case, use your speaker wires to connect to the midrange input (the middle) and the jumpers to connect to the front and rear tweeters.

With two channels of amplification, run one channel on the midrange, and the other channel on the front tweeters. Then

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Page 11
Image 11
Genesis Advanced Technologies 1.1 owner manual 1.5Crossover Connections, ~ÄëçäìíÉ=ÑáÇÉäáíó
Page 10 Page 12

FAQ

What is the preferred connection for the Servo-Bass Interconnect?

The preferred connection is to attach the bare wire on the Servo-Bass Interconnect to the midrange INPUT binding posts on the crossover box.

What type of power amplifiers may not allow the preferred connection method?

Some power amplifiers have BOTH positive and negative outputs at a significant potential above ground, such as some Class D designs.

What should be used if tri-amplifying the G1.1 with identical amplifiers?

A pair of jumpers with banana plugs at one end and spade connectors at the other end are provided to get started if you only have a single channel of amplification.