Legacy Harmony HD User manual

Owners Manual For The
Harmony HD
Loudspeaker System

2
Registration
Owners Record 3
The Cabinetry Our Commitment 4
Warranty 5
Setup
Unpacking Your Speakers 6
Speaker Installation 7-17
Hooking Up Cables 18-20
Amplification 21-23
Technology
Designer’s Notes 24
Specifications 25
Table of Contents
Page

3
The serial number is located on the rear of the unit. Record this
number in the space provided below. Refer to this when calling your
dealer regarding this product.
Model: Harmony HD
Serial No: _________________________
Date of purchase: ___________________
Thank you for selecting a Legacy Loudspeaker System. These hand-
crafted instruments will provide you with many years of listening en-
joyment.
Owners Record

4
Handcrafted
Beneath the surface of Harmony HD’s elegant exterior lies rigid MDF
construction. Interlocking joinery maximizes the strength of the cabinet
parts. Polyester fiberfill is selected for internal damping. A sharp rap on
the enclosure will leave you with little more than bruised knuckles.
Each cabinet is impeccably finished on all exposed surfaces with select
veneers. The exquisite finish is hand-rubbed several times to assure a
patina at home with the most elegant decor.
Our Commitment
A great deal of forethought, love and satisfaction is instilled in each piece
of Legacy workmanship. We take pride in getting to know many of our
customers on a first name basis.
Your purchase of this product is backed by the renowned “Legacy
Satisfaction Guarantee”.
The Cabinetry / Our Commitment

5
Legacy Audio supports its customers and products with pride. We cheerfully warrant our loud-
speaker products we manufacture from defects in materials and workmanship for a period of seven
(7) years. Electronic components such as internal amplifiers and digital processors are covered for
three (3)years. Please register your product with Legacy Audio. Should you require service Legacy
will require a proof of purchase in order to honor the warranty - so please keep your receipt.
• The warranty applies to the original owner and is not transferable.
• The warranty applies to products purchased from an “Authorized Legacy Dealer”.
• The warranty on active components such as digital processors or internal amplifiers is limited to three
(3) years of coverage.
• The warranty on dealer stock will extend for a maximum of two years from invoice.
The warranty does not cover transportation costs of product to or from the customer, distributor or
dealer, or related shipping damage.
Exclusions from Warranty
The following situations or conditions are not covered by the Legacy Audio warranty:
• Accidental damage, electrical abuse or associated equipment failure.
• Use inconsistent with recommended operating instructions and specifications
• Damage caused by modification or unauthorized service
• Costs associated with the removal and reinstallation of defective products. Consequential damage to
other products.
• Normal wear such as fading of finishes due to sunlight.
Warranty

6
Your new speaker system has been very carefully packaged to insure
that it travels to you safely. Each speaker is protected by a double-
wall outer carton with heavy V-board corner protectors. Molded foam
end caps are used to protect the elegant cabinetry, and a plastic liner
is provided as waterproofing. Please save this packing for future
transportation. If cartons become damaged or misplaced, new ones
can be purchased from Legacy Audio.
Unpac ing Your Spea ers

7
Precautions
If you have any doubts about your ability to properly install in-wall loudspeak-
ers, you should consider the services of a custom installer. If you plan to install
them yourself, always use high quality tools to save time and make the installa-
tion go more smoothly. The Harmony In-Wall Loudspeakers mount into stan-
dard 4-inch (or greater) stud depth walls. Determine the final location of both
left and right speakers before cutting any holes since changes to one speaker
may affect the other either aesthetically or acoustically. Look for pipes, wiring
or any other conflicting material that might be damaged before beginning the
installation.
WARNING: Wear Eye Protection when cutting drywall. Also be certain there
are no electrical, water, heating, or gas lines inside the wall in the location you
plan to mount your Harmony loudspeakers.
Spea er Installation

8
Installing the Harmony In-Wall Loudspea ers
Pac ing List
Harmony Speaker
Installation Manual
(2) Support Blocks
(4) Support Block Screws
(2) Tensioning Screws
Tools Required
Pencil
Drywall Saw
Level
Phillips Screwdriver
Tape Measure
Mallet
Spea er Installation

9
Due to Harmony’s unique patented design, Installation is identical for new or existing
construction. The Harmony speaker is designed to perform at its best when the bot-
tom of the speaker is located well off the floor (about 2.5 feet). While it may be in-
stalled at greater heights, it will perform most optimally if the variance is kept within
6” of this height. When wiring, it is useful to leave several extra feet of speaker cable
at the speaker end.
Select the wall locations for the
Harmony system. Try to create a
60-degree angle horizontally be-
tween the speaker pair, relative
to the listening position. A spac-
ing of 8 feet between speakers is
achievable in rooms 12 to 15 feet
in width. (Figure 1) Spacing may
be affected by the use of a video
monitor or screen. To facilitate
installation, Legacy has designed
the Harmony Center to be lo-
cated either above or below a
thin profile wall monitor.
Spea er Installation

10
Cut Opening
- Locate the mounting area between two studs.
- Using a level, scribe two 14.5” horizontal guide
lines onto wall sur face. The upper line should be
70” off the floor. The lower line is 30.75” off the
floor. (Figure 2)
Spea er Installation

11
- Using a drywall saw, cut out the wall opening for
the Harmony speaker. The inward facing edges of
the studs will serve as vertical guides for the saw.
When cut properly, an opening approximately
39.25” x 14.5” will result. (Figure 3)
WARNING: Wear eye protection when cutting
dry wall. Also be certain there are no electrical,
water, or gas lines inside the wall location you
are cutting.
Spea er Installation

12
Mount Isolating Support Bloc s
- Position the first of two support blocks as shown.
(Figure 4)
- With a pencil, scribe a horizontal line onto the
stud at a distance 12.75” down from the top.
- Hold the top of the block even with the scribed
line.
- Slide the block until it protrudes 0.75” beyond the
outer wall.
- Insert one screw through block and into stud.
- Level block.
- Insert second screw through block and into stud.
- Using level, transfer another mark representing
top of block to opposite stud. (Figure 5)
- Install second block. (Figure 6)
- Check both blocks with level. (Figure 7)
Spea er Installation

13
Spea er Installation

14
Connection
- Prepare wire. Select 10-to-14 gauge cable that
complies with applicable code.
- Strip and terminate speaker cable with
spade lugs, banana plugs or twisted bare
wire. (Figure 8)
- Connect each Harmony to the appropriate
+, - output terminals of your amplifier or re-
ceiver. Harmony should not be connected in
parallel with another speaker to same ampli-
fier channel.
Spea er Installation

15
- With Harmony cabinet setting on floor, or elevated onto a soft chair,
connect positive and negative speaker wire leads to corresponding red
and black terminals on bottom of cabinet. (Figure 9)
Spea er Installation

16
- With assistance, slide a Harmony speaker cabinet
onto isolating support blocks as shown. (Figure 10)
- Install provided tensioning screws through isolation
grommet as shown. (Note: Though the screw couples
directlyinto the end of the support block, the internal
steel plate isolation grommet prevent direct mechanical
coupling.) (Figure 11).
- Install plastic grill cups, tapping flush with rubber
mallet or with covered block and hammer. (Figure 12)
- Installation is now complete. Turn on your favorite
DVD or Music sit down and enjoy. Should you have fur-
ther questions, please consult your local dealer, or call
800 283 4644.
Spea er Installation

17
Spea er Installation

18
Before you purchase loudspeaker wire, check local building codes to make
sure that the wire is rated to comply with applicable local safety codes such
as UL or CL-2. Use only stranded wire no thinner than AWG 16. For runs
longer than 100 feet, we recommend minimum of AWG 14. When pulling
wire, take care not to pull the wire too fast to prevent stretching the wire or
scorching the insulation from friction. Leave 2 to 3 feet of excess loud-
speaker wire at both ends; it is easier to trim off excess wire than to splice
additional wire. When securing the wire inside the walls, be careful not to
pierce the insulation with nails or staples.
Hoo ing Up Cables

19
The ideal conductor would have negligible resistance, inductance
and capacitance. The table below shows how a few actual speaker
cables measure up.
Cable Ωs ft pF ft µH ft
12 ga. 0.0033 24 0.21
14 ga. 0.0048 17 0.13
16 ga. 0.0079 16 0.18
18 ga. 0.0128 28 0.21
Capacitance is considered insignificant in each cable because its ef-
fect is well out of the audio bandwidth; inductance can be de-
creased (at the expense of increased capacitance) by keeping the
conductor pair closely spaced.
How long would a cable have to be before inductance effects would
impinge on the audio spectrum? Approximately 300 feet of 12 gauge
would be required to establish a corner frequency of 20 kHz with an
8 Ohm loudspeaker. As you see, inductance is not a problem for
most of us.
Hoo ing Up Cables

20
What about phase shift due to frequency dependent travel times down the speaker
cable? Measurements show that 100 Hz waves will be delayed about 20 billionths of a
second behind 10 kHz waves when traveling to the end of a 10 foot speaker cable.
Since the cilia of the ear requires 25,000 times longer than this just to transmit phase
information, phase shifting is obviously not the primary concern when considering
speaker cables.
What about resistance? Finally we are getting somewhere. Resistance is the control-
ling factor of the amplifier loudspeaker interface. Excessive resistance can cause ma-
jor shifts of speaker crossover frequencies. The lower the impedance of the loud-
speaker, the greater the effects of series resistance. A 20 foot run of 18 gauge cable
can cause up to 10% deviations of crossover center frequencies. That same 20 feet
can un-damp your damping factor and reduce your systems’ output by one half deci-
bel.
In summary, there are no perfect cables. The best way to approximate the ideal
would be to keep loudspeaker leads as short as is practical.
Hoo ing Up Cables