Linn AKURATE Loudspeaker System owner manual Aktiv operation, Important Notes on Aktiv Systems

English AKURATE 242, 225 and 212

Bass Boost (AKURATE 242 and 225 only)

AKTIV operation

Depending on the position of the speakers in your room, or room acoustics, you may wish to boost the lower bass frequencies (those under 200 Hz). This is done by connecting the output from a power amplifier to the BASS BOOST terminals on the rear panel.

If you are bi-wiring Fit the four-hole link strips to the top four positive (+) and minus (–) terminals. Connect one pair of speaker cables from the amplifier to the linked terminals and the other pair to the BASS BOOST terminals.

If you are bi-amping Fit the three-hole link strips to the top three positive (+) and minus (–) terminals. Connect one pair of speaker cables from one amplifier channel to the linked terminals, and bi-wire from the second amplifier channel to the UPPER BASS and BASS BOOST terminals.

If you are tri-wiring Fit the three-hole link strips to the top three positive (+) and minus (–) terminals. Connect one pair of speaker cables from the amplifier to the linked terminals, a further pair to the UPPER BASS terminals and the remaining pair to the BASS BOOST terminals.

If you are tri-amping Fit the two-hole link strips to the top two positive (+) and minus (–) terminals. Connect a pair of speaker cables from one amplifier channel to the linked terminals, a pair from another amplifier channel to the MID terminals and bi-wire from the remaining amplifier channel to the UPPER BASS and BASS BOOST terminals.

Note:

If you are using four or five amplifier channels per speaker you do not need to use any of the link strips.

AKURATE Loudspeaker System

The AKURATE 242, 225 and 212 speakers can be either passively or actively driven. In a passive system, the output from a power amplifier is passed through the crossovers housed in the loudspeakers. This results in a certain loss of audio signal as some of the energy in the signal is absorbed by the crossover circuitry. In an active system, or in Linn terms - AKTIV system, the crossover circuitry is placed before the power amplifier instead. After passing through the crossover, the signal is amplified and sent to the drive units in the speaker, bypassing the speaker’s crossover and therefore not losing that bit of energy. This results in significantly improved audio performance.

AKURATE speakers are shipped in a passive configuration. If you wish to run your speakers actively, you must have one Linn power amplifier channel for each drive unit in the speakers and each amplifier must be fitted with the correct AKTIV crossovers (contact your Linn retailer for further information). The last step is to convert your AKURATE speakers from passive to active. Your Linn retailer will do this for you.

The Bass Boost feature (see left) is not available if a speaker is being actively driven.

Note:

The AKURATE 242, 225 and 212 speakers can be driven partially active, i.e. either the 3-K Array or the bass driver(s) can be actively driven.

IMPORTANT NOTES ON AKTIV SYSTEMS

Do not use your amplifiers with any other loudspeakers – you may damage the loudspeakers.

Do not use your loudspeakers with any other amplifiers – their internal crossovers will be bypassed and the drivers could be severely damaged.

Do not use the terminal link strips – they can only be used in a passive system.

Owner’s Manual 8