Primacoustic London 10 Handleiding


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INSTALLATION MANUAL
Congratulations on purchasing the London Room Kit from Primacoustic. The London Room
Kits are easy to install acoustic panels that will effectively absorb a broad bandwidth of
frequencies and look great for years to come. Because Primacoustic panels are also Class-1
re rated, they are ideally suited to provide effective acoustic control in applications as diverse
as home-theatre, practice rooms, houses of worship, ofces, call centers and broadcast
studios. Please take a few minutes to read through this install manual. It includes a list of
parts as well as step by step mounting instructions. Please refer to www.primacoustic.com for
various placement options, benets, and general room acoustic information. Should you have
any questions or comments, we invite you to send us an email at: info@primacoustic.com
Primacoustic is a division of Radial Engineering Ltd. 1845 Kingsway Ave., Port Coquitlam, BC V3C 1S9, Canada
Tel: (604) 942-1001 • Fax (604) 942-1010 • info@primacoustic.com.
Specications and appearances subject to change without notice.
Primacoustic Room Kit manual / Part #: R870 2028 00 / 04-2022 Copyright © 2016, all rights reserved.
WARRANTY
Please inspect products immediately after receiving your purchase. Primacoustic acoustic products are guaranteed to be free of manufacturing defects for a period of 3 years after purchase. In the unlikely event that a defect is uncovered, please
call 604-942-1001 to obtain a RA number (Return Authorization number) from Primacoustic before the 3 year warranty period expires. Once you have obtained a RA number you must return the product, freight prepaid, within fteen (15) days
after the date the RA number is issued. Please return the product in the original packaging (or another, affording an equal degree of protection) with all of the following: (1) RA number clearly marked on the returned package; (2) a receipt or bill
of sale showing proof of purchase from an authorized seller; plus (3) a letter describing the defect. Please include your name, address, telephone number and the applicable RA number. You are solely responsible for all shipping and insurance
costs for returning the product to Primacoustic, and you will not be reimbursed or compensated for any loss or damage incurred during return shipping. Primacoustic will at its sole discretion repair or replace the product. Should the product no
longer be available, Primacoustic reserves the right to exchange this with a product of similar performance and value. Due to different dye lots, Primacoustic cannot guarantee exact color match. This Warranty shall solely extend to the original
owner and is limited to manufacturing defects and excludes damage due to improper installation, freight handling, wear and tear, abuse, misuse, misapplication, color fading or deterioration due to prolonged exposure to ultra violet light, smoke,
humidity or other environmental factors. It is understood that the use and suitability of the product is entirely the responsibility of the buyer or specifying engineer and as such, these parties agree to hold Primacoustic, or its associated company,
and/or ofcers, harmless from any responsibility whatsoever other than what is clearly outlined in this warranty.
CORE MATERIAL Formed, semi rigid inorganic glass bers; Density = 6.0 lbs. (2.72kg/m3) per cubic foot
COLOR OPTIONS Color code: Black=00, Beige=03, Grey=08, Absolute White™=09
• Bubble level
• Phillips #2 screw driver
• Power drill
SPECIFICATIONSTOOL REQUIRED
LOND ON R O O M K I T
London 8
(4) 12" x 48" Control Columns
(30cm x 120cm)
(8) 12" x 12" Scatter Blocks
(30cm x 30cm)
(20) Surface Impalers
London 10
(8) 12" x 48" Control Columns
(30cm x 120cm)
(12) 12" x 12" Scatter Blocks
(30cm x 30cm)
(28) Surface Impalers
London 12
(2) 24" x 48" Broadband Panel
(60cm x 120cm)
(8) 12" x 48" Control Columns
(30cm x 120cm)
(12) 12" x 12" Scatter Blocks
(30cm x 30cm)
(28) Surface Impalers
(8) Corner Impalers
London 16
(4) 24" x 48" Broadband Panel
(60cm x 120cm)
(16) 12" x 48" Control Columns
(30cm x 120cm)
(24) 12" x 12" Scatter Blocks
(30cm x 30cm)
(48) Surface Impalers
(16) Corner Impalers
The London Room Kits contain a moderate amount acoustic material for recording studios with a footprint of approximately 120 to 150
square feet (11 - 14 square meters), or home theaters of 150 to 200 square feet (14-19 square meters). This is a good rst step when
tuning your room’s acoustics as it will provide a base amount of broadband acoustic treatment for these room sizes. Overtly treated
rooms with “dead” acoustics are avoided with the exception of voice over booths. However, depending on your personal preference and
room layout, the amount of acoustic material could be increased for a less reective, darker sounding room or decreased to create a
livelier ambiance. During the treatment process we recommend you conduct listening tests with music you know well.
LI VE -E N D
(m or e re flec tiv e)
DE AD -E ND
(l es s re fl ec tiv e)
SWEET SP OT
RECORDING STUDIO LEDE LAYOUT
The London Room Kits, when installed as suggested, follow a
variant of the live-end, dead-end concept referred to as LEDE. The
intent of an LEDE layout is to help you to produce tonally balanced
recordings that translate well on playback equipment outside your
studio. The room is divided into “front” and “rear” sections and
includes a well dened listening area or “sweet spot”. The front
half of the room (where the monitors are generally located) has
the most amount of acoustic material applied in order to absorb
primary reections before they reect into the mix position. This
allows the engineer to hear a high ratio of direct sound from the
monitors with less interference from room reections. The rear
section of a LEDE designed room employs acoustic diffusers that
break up the sound energy and reect it back into the room in
random directions to create diffuse room reverberation. The rear
wall treatment provides a sense of space and ambience while
eliminating standing waves between the front and rear walls. For
more information about the LEDE concept see the Primacoustic
TechNotes at www.primacoustic.com.
24" x 48" Broadband Panel front left and right corners:
The large Broadband panels are part of the “dead end” front wall
that attenuates primary reections from the rear and side walls.
The two inch thick panels provide high and mid-range absorption
eliminating utter echo and standing waves. When mounted
across 90° corners an air space is formed behind the panel that
increases the absorption of low frequencies (bass trapping). Your
room’s dimensions will determine the low frequency response
and cause specic low frequencies to resonate (room modes)
more than others. The corner mounted Broadband panels are a
good place to start for rooms with favorable dimensions for music
reproduction. Depending on your room dimensions you may need
to address other narrow-band low frequency resonances. See the
Primacoustic web site or talk to your Primacoustic dealer to learn
about our products that can be employed to treat low frequency
room resonance.
12" x 48" Control Columns front and side walls:
The Control Columns also form part of the dead end and are
intended to absorb the primary reections that bounce off the side
walls and into the sweet spot. Left untreated, these reections
can equal the amplitude of the direct sound from the monitors and
cause degrading comb ltering phase effects. Placing Control
Columns on the front wall and on the sides between the sweet
spot and the monitors allow you to hear a truer sound from your
monitors and also eliminates utter echoes that bounce back
and forth across the mix position. Typically, Control Columns are
spaced on the side walls with a 6" to 12" gap between Columns.
Distribute the Columns evenly across the sides and front walls.
12" x 12" Scatter Blocks rear wall Soft Diffusion:
The LEDE concept calls for acoustic diffusion in the rear section
of the room. These devices work by breaking up and reecting
sound waves back into the room in a diffused eld. The problem is
that for diffusers to work; they must have sufcient mass making
them large and heavy. Scatter Blocks present an affordable
alternative to full scale diffusion. By arranging Scatter Blocks
in patterns with reective spaces in between you create an
checkerboard effect we call Soft Diffusion™. This provides for
some of the acoustic energy to be absorbed while a portion is
allowed to reect back into the room. This helps control utter
echo and reduces standing waves while leaving a sense of ‘air
or natural ambience in the room. Because Scatter Blocks are
individually mounted they easily accommodate furnishings like
bookcases or sofas.
1. Direct sound waves from monitors. Direct sound waves arrive at the sweet
spot without reecting off of room surfaces.
2. Primary reections. Off-axis sound waves from the monitors reects off
the side walls and into the sweet spot. These reections combine with the
direct sound and cause phase cancellations. Control Columns reduce the
amplitude of side primary reections.
3. Secondary reections bounce off of two or more room surfaces and eventually
fall-off into room reverb. If left untreated they can create chatter echo where
several distinct repeats are heard instead of a smooth reverb tail.
4. Soft Diffusion helps break up reections returning from the rear wall controlling
standing waves while maintaining a natural room ambience.
5. Low frequency energy wraps around objects and is guided into the corners
by the room boundaries. The corner mounted Broadband panels absorb bass
in the corners and deaden the front wall to control primary reections and
standing waves between the front and back walls.
6. Flutter echoes bounce back and forth between parallel walls across the sweet
spot. Control Columns on the sides and front walls eliminate utter echoes
and control standing waves that set up across the sweet spot.
12
3
4
5
6
10’ x 12’ x 8’ (120 sq./ft.)
3m x 3.6m x 2.4m (11.2sq./m)
24" x 48" Broadband Panel room corners:
The large Broadband panels can be located in either the front or
rear corners with the same expected performance of controlling
standing waves, absorbing high/mid-range frequencies and
trapping bass in the corners. Locating Broadband panels on the
rear wall behind the surround speakers can help make surround
channel information more distinct by absorbing reections that
would otherwise compete with the direct sound from the surround
speakers.
12" x 48" Control Columns side walls:
Control Columns are located on the sides between the
loudspeakers and seating area. Here they control off-axis sound
waves from the front speakers before they bounce off the side
walls and into the seating area. If left untreated, to much of
these powerful primary reections can reach the seating where
they combine with the direct sound causing destructive phase
cancellations. By reducing primary reections from the sides a
higher ratio of direct sound is heard at the seating area making
critical mid-range frequencies clearer and dialog more intelligible.
12" x 12" Scatter Blocks soft diffusion:
The rear wall, as in the recording studio layout, is the primary
location for Soft-Diffusion treatment. The goal is a mix of absorbent
and reective surfaces that reduce standing waves between the
front and rear walls but still return some acoustic energy into the
room. Place Scatter Blocks in a staggered pattern on the rear wall
directly behind the seats to treat standing waves at the seating
area. Home theaters have the advantage of more furnishings
than what is found in a typical recording studio. Furnishings like
bookcases can offer excellent diffusing properties. Scatter Blocks
can be integrated with your existing furnishings by looking for
open areas on the rear wall.
ALTERNATIVE LAYOUTS
HOME THEATER LAYOUT
While a recording engineer wants the room to play less of a role in the reproduced sound, a home theater enthusiast is inclined to allow
the room to inuence the soundstage through more reective surfaces. The increased reections make for a livelier room sound which
translates to a more exciting and realistic experience. The key to home theater layout is spreading the acoustic material out to create
a somewhat even balance of reective and absorbing surfaces throughout the room while keeping an eye out for the most problematic
reections like off-axis primary reections from the side walls, utter echo and standing waves.
11' x 12' x 8' (132sq./ft.)
3.4m x 3.6m x 2.4m (12.3sq./m)
11' X 14' x 8' (154 sq./ft.)
3.3m x 4.2m x 2.4m (13.8sq./m)
Broadband panels and Columns form
a less reective “front” wall while
trapping bass and reducing standing
waves/utter echo. Acoustic symmetry
is maintained.
In this music listening room the windows are
treated with drapes and Control Columns are
position opposite to balance the symmetry.
12’ X 16’ x 8’ (192 sq./ft.)
3.6m x 4.8m x 2.4m (17.2sq./m)
1. Direct sound waves from loudspeakers.
2. Primary off-axis reections are attenuated by Control Columns.
3. Secondary reections bounce off of two or more room surfaces and eventually
creates room reverberation.
4. Diffused sound waves form the rooms reverb tail.
5. Low frequencies are guided into the corners by room boundaries.
6. Standing waves set-up between parallel walls.
1
2
3
4
5
6
Often, the challenge in setting up a home studio, theater or music
listening room is maintaining symmetry while accommodating
existing furnishings and room xtures like windows. When dealing
with a less than ideal room some creative modications to the
layout can be made without adversely affecting your ability to
achieve a balanced room response with the London room kit.
Here are some tips for the different panel sizes.
Broadband Panels: The 24" x 48" Broadband panels can
be stacked two high in any room corner and still provide the
same amount of bass trapping. To increase the absorption of
low frequencies you can pack the air space behind the corner
mounted Broadband panels with polyester batting.
Control Columns: The 12" x 48" Columns are to absorb off-axis
primary reections from the front loudspeakers. In the examples
to the right the Columns are used opposite from windows. Drapes
on the windows can help make the acoustic treatment more
symmetrical.
Scatter Blocks: The 12" x 12" Scatter Blocks are very exible.
If the rear wall is unavailable they can be divided into two groups
of six staggered panels to treat more than one room surface.
Alternatively, if you have bookcases acting as rear diffusers you
can go ahead and use the Scatter Blocks on any large untreated
room surface or to augment the sides and front treatment in larger
rooms.


Product specificaties

Merk: Primacoustic
Categorie: Niet gecategoriseerd
Model: London 10

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