6
Correct phasing of the speakers is vital for sound quality so check your amplifier manual for
instructions. Some vacuum tube amplifiers may require that you change the phase between amplifier
and the speakers by reversing the cable connections (e.g. Red amplifier terminal to White/Black
speaker terminal) on both speakers.
Very tight and positive connections are necessary but do not over-tighten the screws! Care should be
taken to ensure that the connections are neat, and there are no loose wires, which could cause a short
circuit and damage the amplifier.
Always turn off your amplifier before connecting any cables or altering any connections!
Installation of Lowther drivers (optional)
Your Teresonic speakers are usually shipped with Lowther drivers installed, and ready for use. In certain
situations, such as to avoid driver damage during the transport, the drivers may be shipped separately in their
original packaging. In this case you need to install the drivers – an easy and straightforward process. It will also
give you opportunity to see inside your speaker’s fine acoustic chamber.
Inside the baffle opening you will see two internal cables
fixed around driver’s back support with a plastic tape.
Cables are equipped with gold plated Red (+) and Black
(-) O-rings. In order to prevent unlocking (unscrew or
loosening) the terminals, place the cables angled to the
right, looking from the back of the driver, as shown in
the Figure 2. This way contact loosening will be
prevented even if cable moves slightly.
After cables are properly attached to the driver, they can
be put in place and tightened with four screws that are
provided together with an appropriate tool. The back of
the driver should be touching the back support rod that
is designed to eliminate driver vibrations and assure the
optimal sounding of the drivers.
Fig. 2
Installation and operation
Place the speakers in their approximate location following recommendations in chapters four (Fine Tuning)
and five (Room Acoustics) for the best results.
It is worth noting that when the tone controls on your pre-amp are turned above the neutral setting this
significantly burdens both speakers and amplifier. In a good sound system tone controls should only be used to
compensate for poor recordings and not to permanently compensate for weaknesses elsewhere in the system.
Teresonic recommends that the tone controls generally be set to the
neutral
position, and you achieve your
desired sound image through correct positioning of the speakers.
Ensuring that you keep the volume low enough so the sound remains clear and undistorted will minimize the
strain on both speakers and amplifier. Care should be taken when using the loudspeakers with very high
powered amplifiers. Although Teresonic speakers are reasonably tolerant and have power handling of up to
