room to reduce reflections which generally result in sonic
anomalies.Our experiencehasshownthat speakerplacementof
less than 3 feet (about I meter) from a wall or corner can create
hardness, smearing of the sound, and at times other forms of
sonic distortion which reduce clarity and change the harmonic
structure of music. Often as not, these sonic anomalies
blamedon the speakersbut are really due to poor room place-
ment. We cannot stress too strongly the importance of room
placement and the role it plays in achieving excellent musical
balance. See figure 6.
When the speakers are moved inward (toward each other)
this generally achieves better focus of instruments and vocal-
ists; however, moving the speakers too close together can
reduce the front-to-rear stage effect and you may need to exper-
iment with the trade-off between focus and imaging. When the
speakers are moved closer together to obtain greater focus, it
may be beneficial to tilt them slightly rearward to open up the
sound stage. Tipping the speakers rearward will also soften
midrange and higher frequencies. This subject is discussed in
detail in the section of this manual entitled "Adjustment Of The
Rear Spiked Foot."
(36)
Figure 6: Suggested Starting Placements for Renaissance Speakers
If your listening room is larger than average and your listen-
ing position is relatively far from the speakers,wider placement
of the speakers may be required (approximately 10 feet or 3
meters apart). Try angling the speakersinward for better projec-
tion of midrange and high frequencies; however, do not angle
the speakers too sharply because this may reduce stereo imag-
ing as well as front-to-rear depth. The exact angle of toe-in
must be determined by careful experimentation. There is no for-
mula
to follow
because
rooms
er's position may .vary considerably (see figure 7). The toe-in
angle for each speaker must be exactly the same for best sonic
results. This can be done effectively by eye or by using a tape
measure or straight edge to measure the amount Of toe-in from a
forward firing position.
differ
in acoustics
and the listen-
ANGLE
SPEAKERS
TOWARDS
LISTENING
are
Figure 7: Angling Renaissance Speakers
When installing your speakers,be very careful to keep them
on the same plane (exactly the same distance from the front
wall). It is advisable to use a tape measure or a string to mea-
sure the exact distance the speakers are located from the front
wall. Also keep the fronts of the speakers aligned so they face
in exactly the same direction. Seefigure 8.
EXACTLY
3 FEET
(t METER)
LISTENERS
Figure 8: Aligning The Fronts Of Renaissance Speakers
Room corners are difficult to cope with and you should try
to keep the location of the speakersas far away from corners as
possible. Corners add low frequency
create severeproblems in the bass range, often making bass too
heavy and inarticulate. If a situation arises where the bass
responseis too light, you may wish to move the speakerscloser
into the corners for low frequency reenforcement, but as a rule
of thumb, always try to keep the speakersas far away from cor-
ners as possible.
It is often difficult to balance bass response because it is
within this particular frequency spectrum where the room
becomes a major influence. The listening room can affect all
frequencies from the lowest bass throughout the middle bass
range. At times, moving the speakers(or the listening position)
forward or rearward by merely a few inches (cm) can make a
substantial change in the quantity and quality of bass response.
The best procedure is to experiment with speaker placement
over the course of several days making changes in location and
noting them for future reference. Use various types of program
material (music, voice, solo instruments) and evaluate each seg-
ment of the audio spectrum (bass, middle bass, midrange and
highs) before choosing the final location for your speakers.
Changing the responseof one portion of the audio spectrum can
ANGLES
FOR BOTH
SPEAKERS
MUST
BE
FRONT OF SPEAKERS
ON SAME PLANE
ANO
AT SAME
ANGLE
reenforcement
and can