Mission 770 User manual

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Important Safety Information
Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions.
Set the volume control at minimum when you switch on your system or change sources, and turn
the level up gradually.
DO NOT use your amplifier at full volume.
Ensure that all loudspeakers in the system are correctly wired.
DO NOT subject your loudspeakers to excessive cold, heat. humidity or sunlight.
Loudspeakers should not be placed directly facing other hi-fi units, or share the same shelf or
cabinet.
DO NOT place heavy objects on top of loudspeakers.
Some manufacturers forbid the placing of objects on top of their TV sets. Check your TV
handbook before installing the speaker directly on your TV set. Consult your TV dealer if you are
in any doubt.
DO NOT connect speaker terminals to the mains supply.
DO NOT dismantle the loudspeaker. There are no user serviceable parts inside it and you will void
the warranty by doing so.
Refer all servicing to qualified service personnel. Servicing is required when the apparatus has
been damaged in any way, the apparatus has been exposed to rain or moisture, does not operate
normally, or has been dropped.
Caution: Changes or modifications not expressly approved by the manufacturer could void the
user's authority to operate this device.
Before installing this product read all these instructions!
This symbol indicates that there are important operating and maintenance instructions
in the literature accompanying this unit.
Designer's Notes Contents Important
Safety Instruction
Music Leads,
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Loudspeaker Installation
Warranty Coverage
Technical Data

CONTENTS
Music Leads,
Technology Follows
Designer's Notes
Loudspeaker Installation
Warranty Coverage
Technical Data
04
05
14
17
21
Designer's Notes Important
Safety Instruction
Music Leads,
Technology Follows
Loudspeaker Installation
Warranty Coverage
Technical Data Contents

Music Leads, Technology Follows
04
Mission has built a world-class reputation for advanced audio design since the company’s
formation in Huntingdon, Cambridgeshire in 1977, with an engineering-led approach to product
development that has resulted in some of the most popular and iconic loudspeakers, ever
devised.
Three things have always characterised Mission speakers. First, the cabinets and drive units use
innovative materials and sport a distinctive, modern appearance. Second, the sound they
produce is fast, detailed and engaging. Third, they deliver excellent sonic and material value for
money.
Today, Mission continues to stretch the boundaries of what can be achieved at specific price
points, pioneering technologies to create fresh, new designs. Mission's team of engineering
experts is headed by award-winning audio designer Peter Comeau whose history with the Mission
brand stems from when he joined Mission as Director of Acoustic Design in 1999. The brand
benefits from the unrivalled manufacturing facilities and global reach of parent company IAG,
with the majority of component parts of every loudspeaker now made in-house.
Yet the company’s roots remain firmly entrenched in Huntingdon, where much of Mission’s
design, servicing and technical support work is still carried out. This, coupled with a design team
brimming with British and European talent, ensures Mission speakers remain as impressive today
as they were when the company first established itself at the forefront of the burgeoning British
audio scene more than 40 years ago.
Designer's Notes Important
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Designer's Notes
05
Legend has it that Farad Azima, Founder and CEO of Mission, was so taken with the design of the
Spendor BC1 that he wanted to improve upon it. Thus started the legendary Mission 770, a two-way
vented loudspeaker in the classic mode of the late ‘70s that was to shake up the hi-fi world.
On the face of it, Mission 770 was nothing special. But, then, it’s often what’s under the surface that
surprises you. At its heart was a polypropylene cone, 8-inch bass unit that had started out life as a
Chartwell design and transmogrified into a unit from SEAS of Norway by the time I got to hear a
prototype. The treble unit also came from SEAS and was a plastic 25mm dome. This pairing was then
surrounded by a chipboard cabinet heavily damped with bitumastic pads.
Above: The first legendary Mission 770, a two-way vented loudspeaker in the classic mode of the
late '70s that was to shake up the hi-fi world.
The Origins
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Designer's Notes
06
The mid ‘70s saw the expansion of subjective reviewing, as
opposed to the almost perfunctory paragraph of ‘listening
notes’ added to the end of extensive measurement and
technical description reviews that had gone before, and Farad
made the most of his editorial press connections.
I was a contributor to Hi-Fi Answers at the time and so
witnessed hearing some of the prototypes that Farad
presented at Paul Benson's (the editor) flat. Among other
reviews, it was Paul’s revelatory review in HFA that described
the magic of the musicality of the 770 which was like a breath
of fresh air amongst loudspeakers of the time.
Above: Instantly recognisable in style and performance, the 700 series, and 770 in particular,
arestill hallmark Mission designs.
Above: Around 1978, Mission’s
legendary 770, the originator
of the famous 700 series, was
personally designed byFarad
Azima.
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Designer's Notes
07
Classically
Modern
The 770 soon became highly popular. It quickly turned into Mission's
best-selling speaker and gravitated naturally into Mk2 and Mk3 revisions with
improvements to sensitivity and power handling. After that, the design
eventually migrated to Freedom and other variations, but none of them
created the sales impact or notoriety that the original 770 received.
For the ‘new’ Mission 770, I was eager to revisit the original Mk1 design and
hear, again, the highly musical performance that I had witnessed back in 1978.
The key to the 770’s performance was, indeed, that combination of
polypropylene cone and resonance controlled cabinet and, so, this became
the emphasis for the design of the new model.
Accordingly, we developed a new polypropylene driver, mimicking the
extended response and low colouration of the original, while upgrading the
motor system to take account of modern power handling and dynamic
requirements.
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Drivers
Anew
Naturally, like the original, the driver is built on to an 8-inch (200mm)
die-cast chassis with large rear ‘windows’ to reduce early reflections
back through the cone. Special care has been taken to marry a low
density nitrile surround to the cone to match its impedance and reduce
reflections from the cone edge.
This new polypropylene cone has been treated with mineral filling to
enables you to hear exactly how bass instruments are being played. This
is balanced by tuning the cabinet and reflex port to a very low
frequency, avoiding the ‘one-note bass’ that is typical of a lot of
bass-reflex systems. In addition, the port is strongly flared at both inlet
and outlet to smooth airflow and eradicate distortion. Bass extends
powerfully and cleanly to below 30Hz in room, which is remarkable for
this size of speaker.
Designer's Notes
08
Flux-focus
Sub-magnet
T-yoke
Main Magnet
Top Plate
High Flexibility
Progressive Spider
Large Diameter
Voice Coil
Mineral Loaded
Polypropylene Cone
Clamp Ring
Rigid Die-cast
Chassis
Low Damping
RubberSurround
Dust Cap
Above: Exploded technical diagram for the new Mission 770 bass unit.
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Designer's Notes
09
Drivers
Anew
For the new 770, we have chosen a lightweight, damped microfibre dome
with a super smooth response, backed by a damped rear chamber that
pushes the fundamental resonance well below the crossover region. The
quality of this 28mm treble dome matches and marries to the polypropylene
bass/midrange to ensure evenness of character throughout the range of the
whole speaker.
The original 770 crossover used a single coil to both balance and equalise the
bass to midrange response as well as cross over to the treble unit, the latter
driven by a resistor, capacitor and coil combination. This was always going to
be a compromise solution as it is not easy to use just a few components to
perform both functions.
Today’s advanced software crossover mapping and measuring techniques
allow us to accurately equalise the bass/midrange balance and adjust the
crossover to the treble unit by mapping the acoustic crossover slopes
accurately. The simplicity and elegance of the original 770 crossover has been
maintained, with additional elements added only to optimise the crossover
performance while retaining the musical character.
The best acoustic performance, featuring a seamless transition between the
bass and treble units while retaining all the thrilling musical detail and
emotion of the performance, has been realised through hundreds of hours of
listening sessions, using a wide variety of music.
Rear Chamber
Gasket
Vented Spacer
Sub-magnet
Foam Damping
Copper Wound
Glass Fibre Voice Coil
Microfibre
Polyester Dome
T-yoke
Main MagnetTop Plate
Gasket Aluminium
Front Panel
Felt Damper
Above: Exploded technical diagram for the new Mission 770 treble unit.
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Designer's Notes
10
AGenuine
Classic
Drivers and crossover are housed in a real-wood veneered cabinet with
stand-out product in the ‘70s hi-fi market. Beneath the rich rosy-tinged
walnut or black veneers lies a further technological achievement. While
the original 770 reduced midrange colouration through the use of the
BBC influenced technique of a thin-wall cabinet damped by mass loading
with bitumen pads, the new 770 features a twin wall sandwich of
high-density MDF and particleboard bonded by a layer of high damping
glue. This results in a cabinet with panel resonance well below audibility,
allowing the drive units to do their job unsullied by cabinet colouration at
all frequencies.
support that aids the dynamic performance of the bass unit and reveals
the micro-dynamics of the musical performance. Finally, the internal
absorption layer of acoustic foam and fibre has been specially chosen
and adjusted to absorb reflections inside the cabinet without
overdamping the bass quality.
Director of Acoustic Design
IAG Group Ltd
PETER COMEAU
To repeat the 770’s brochure claims of ‘staggering bass definition and response;
lack of colouration; uncanny imaging; information retrieval; transient attack; depth
and perspective; accuracy and linearity; speed and dynamic range’ is only to hint
at the real performance of the 770. Instead, we prefer to focus on the 770’s
uncanny ability to reveal the true depth, emotion and drama of whatever music
you care to feed to it.
We are sure you will find that a classic design has been reborn.
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Mission 770 Treble
Light-weight damped microfibre
dome with a super smooth response.
High flux ferrite magnet engineered
for detailed HF extension.
Mission 770 Bass
Totally new, and improved,
polypropylene driver with design
cues and pedigree taken from the
orginal 770 design.
Upgraded motor system, taking into
account of modern power handling
and dynamic requirements.
Mission 770 Stand
The custom designed, British design
and built, 770 Stand ensures the
optimum presentation both visually
and acoustically.
Mission 770 Cabinet
Real-wood veneered cabinet with white laminated
front bae.
Features a twin wall sandwich of high densityMDF
and particle board bonded by a layer of high
damping glue.
The low frequency energy is vented to the
custom engineered, flared port at the speaker’s
front. The port is specially profiled to allow
smoother airflow.
The result is natural bass extension to below
30Hz, in room.
Mission 770 Air Profiled Port
Designer's Notes
11
Important
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10

11

14
Loudspeaker Installation
Please read this manual as soon as you have opened the carton.
Lift the loudspeaker carefully out of the packing. Do NOT try to
lift the loudspeaker using the cloth bag.
Unpack any accessories carefully.
If there is any sign of damage or if the contents are incomplete,
report this to your dealer as soon as possible.
Retain the packing for future safe transport of the product.
Dispose of the packing with respect to any recycling provisions
in your area.
Unpacking
Your
Loudspeakers
Positioning
Stereo
Loudspeakers If you are sitting within 2 metres of the speakers, the distance
between the speakers should be similar to the distance between
you and the speakers.
Otherwise site the speakers between 2 to 2.5 metres apart, clear
of room corners. The quality and quantity of bass can be
adjusted by moving the speakers closer to, or farther from, the
wall behind the speakers.
If the loudspeakers are placed too far from the walls, the bass
may be too light and lacking warmth. If the loudspeakers are
placed too close to the walls the bass will increase but may be
boomy and indistinct. If the loudspeakers are placed further
apart, the inward angle ("toe in") may be increased by up to 30%.
As personal taste and room acoustics play a large role,
of programme material before finalising the position of your
speakers.
The optimum listening position is in an area between the
speakers broadly known as the "sweet spot". The more extreme
the angle of toe-in the narrower the sweet spot. Mission
loudspeakers are designed to cover a wide sonic perspective so
there should be no need for extreme settings. A mild angle
inwards will cover a wide range of seating positions.
The grilles are provided to protect the loudspeaker drive units
from accidental damage. For critical listening, you may remove
the grilles.
Place the loudspeakers on rigid stands. We strongly recommend
the Mission 770 stands which have been purposely designed to
achieve the best performance from your speakers.
>0.7metre
>50mm
1.5 to 2.0 metres
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Loudspeaker Installation
15
Setting Up a
Home Theatre
System
either side of the television screen, 2 to 3 metres apart. The speakers
should be angled slightly so they are aimed towards listeners. We
behind the listener’s head. If the rear or side walls are a long way from
the listening seat, consider stand mounting the loudspeakers. If the
centre loudspeaker is very high or low, angle it towards the listener’s
ear level.
The front faces of the centre and surround loudspeakers should also
be in line as far as possible.
Subwoofer: As the ear is unable to detect the direction from which
deep bass originates, you have freedom to position the unit. Varying
the distance from the wall alters the bass. Placing the subwoofer
across a corner boosts the bass but may impair clarity. The
performance of a home theatre system can be enhanced by using
two subwoofers.
6.1 and 7.1
System
Placement
precise configuration of these systems will depend on the capabilities
of your processor and you should be guided by those instructions,
we would make some observation.
For 6.1 and 7.1 formats the listening seat should not be too close to
the rear wall.
Optimising the time delay so that information from all speakers
arrives at the listening seat coherently is critical if the benefits of
these systems are to be fully realised.
Dolby Labs Recommended Placement for Multichannel Home
Theater Systems.
Left Surround Right Surround
(Single Back channel for 6.1)
Left Back Right Back
Centre Right Front
30°
90°
110°
135°
150°
22°
LFE
Left Front
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16
Loudspeaker Installation
These speakers are hand-finished with a varnish coating. As with
all real wood furniture finishes; exposure to direct sunlight, heat,
the speaker cabinet. We advise protecting the speaker from
extreme variances in temperature and environmental conditions.
We advise that you do not place anything on the surface of the
cabinets, to protect from damage. Treated with care, the veneer
finish will last a lifetime. They will age naturally and subtly,
retaining the properties of the beautiful high gloss wood finish.
Your Mission loudspeakers use an especially hardwearing sealed
finish. They should not be waxed or treated with spray polishes
which will smear and dim their lustrous finish. Polish them with a
dry or barely moist cloth to remove dust and finger marks, etc.
Occasionally, remove the loudspeaker grilles and brush them
gently with a soft brush before replacing them carefully.
Avoid getting any liquid behind the grille. If you accidentally spill
liquid on your loudspeakers, take them to your dealer for
attention before using them again.
Looking After
Your
Loudspeaker
Standard
Connection
Choose a suitable length of twin core speaker cable for each
channel and prepare the ends. Unscrew each terminal a few
turns. Connect the red, positive (+) terminal of the Left
loudspeaker to the corresponding red, positive (+) amplifier
terminal.
Connect the black, negative (-) terminals similarly. Tighten the
terminal securely. Repeat this procedure for the Right Channel.
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Warranty Coverage
17
Online
Registration
Your loudspeakers have been constructed to the highest standards. From top grade furniture
construction and finish to carefully designed and selected acoustic components, Mission speakers
are built to provide a lifetime of sonic pleasure. We hope you will derive many years of good service
from our products.
Mission warrants its products, subject to the following terms and conditions below, to be free from
defects in materials and workmanship.
The three (3) year extended warranty is applicable to items
purchased from Jan 1st 2021, onwards. Items purchased prior to this
date are not eligible for this extended warranty service but are
subject to statutory warranty claims and all applicable consumer
rights.
To qualify for the extended 3 year warranty, you must register your
product within ninety (90) calendar days from the date of purchase.
Visit mission.co.uk/warranty-registration to complete your online
registration. Items not registered online will have a Limited Warranty
for one (1) year, or for the period of your country’s statutory
warranty, whichever is longer.
purchase with date, model and details of the authorised dealer
clearly stated on the receipt/invoice. Please keep the original
receipt/invoice in case it is required for a warranty claim.
to the original owner.
This Limited Warranty is valid only in the original country of
purchase.
Repairs or replacements are provided under this warranty are the
exclusive remedy of the consumer. Mission shall not be liable for any
incidental or consequential damages for breach of any expenses or
implied warranty with any product. Except to the extent prohibited
by law, this warranty is exclusive and in lieu of all other warranties
whatsoever, both expressed and implied, including but not limited to
the warrant of merchantability and fitness for practical purpose.
This warranty provides benefits that are additional to and do not
submitted in your application. Incorrect dates or mismatched
purchase receipt dates that are outside of the warranty terms will
immediately invalidate any warranty claim.
*Please check with your dealer local distributor for further
information.
Scan the QR code using a smart-phone device,
for product warranty registration online.
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Warranty Coverage
18
Exclusions The following items are excluded from the Mission warranty:
Please note items purchased before 1st Jan 2021 are not eligible for
the extended warranty claim.
- Normal wear and tear and cosmetic damage (including but not
limited to any wear from reasonable use, environmental
deterioration or neglect)
- Products on which the serial number has been removed, altered or
otherwise made illegible.
- Products not purchased from an authorised Mission dealer.
- Products that were not new at the time of original purchase.
- Products sold ‘as is’, ‘as seen’ or ‘with faults’
- Product not purchased from an Authorised Dealer/Distributor
within the region of the claim (ie parallel imports or grey market
products)
- Accidental damage or faults caused by commercial use, acts of God,
incorrect installation, incorrect connection, incorrect packaging,
misuse or careless operation or handling which is not in accordance
with the user instructions.
- Equipment that has been operated in conjunction with unsuitable,
inappropriate or faulty apparatus.
- Repairs, alterations or modifications carried out by parties other
than Mission or its authorised service partners.
- Damage in transit that cannot be attributable to the fault of Mission,
the authorised distributor or dealer (ie. claims otherwise covered by
transit insurance.)
- Faults relating to abnormal or inappropriate power supply voltage
or power surges.
- Faults relating to extremities in temperature, exposure to heat,
water or other liquids, insects, excessive moisture, sand, chemicals,
battery leakage or any other contaminants.
- Any force majeure events, including but not limited to any acts of
God, fire, lightning, typhoon, storm, earthquake, hurricane, natural
disaster, tsunami, flood, war, riot, public disturbance.
- Any other causes beyond the reasonable control of either Mission
and its Authorised Distributor.
How to Claim To obtain warranty service please contact the authorised dealer from
which you purchased this product and present the limited warranty
certificate oered upon registration of your product’s extended
warranty oer.
Do not dispatch goods without the prior agreement of the dealer
distributor or authorised service centre.
If asked to return products for inspection and or repair, please pack
carefully preferably in the original carton or packaging aording an
equal degree of protection and returned via insured, trackable
courier service.
The authorised dealer or distributor will oer full return details and
instructions. However, please note if unsuitable packaging is used
the warranty may be deemed void due to improper action in return.
Mission or the authorised distributor, dealer or service centre may
make a charge for the supply of new packaging for the return of the
repaired item. Please note, insurance is recommended as goods are
returned at the owner’s risk. Authorised distributors or service
centres cannot be held liable for loss or damage in transit. insurance
and freight charges on the return journey will be paid for by Mission,
authorised dealer, distributor or service centre if corrective work
proves to be necessary.
In the event of ‘no-fault found’ or ‘no repair necessary,’ the return
shipping charge will be the responsibility of the owner.
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Warranty Coverage
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Repairs All repairs will be carried out by the appointed distributor (or locally
appointed service centre). Repairs handled or processed without
authorisation or approval of the appointed representative will be
excluded from this limited warranty. Please note, Mission is not able
to supply parts or replacement items to any other entity than the
ocial distributor or authorised service centre.
Other than the warranty and services set out in this warranty, to the
fullest extent permitted by law, Mission shall not be liable to you
and/or any third party or entity whatsoever for:
Service
Centre
Address
Should a fault occur with your loudspeakers, please pack it correctly,
using the original packing, so you can ship it safely. Product for
service should be returned to the appointed dealer from whom you
purchased the product. If you experience difficulties or there is no
Mission dealer in your area, contact the Mission distributor or the
office below.
IAG Service Dept.
13/14 Glebe Road
Huntingdon
Cambridgeshire
PE29 7DL
UK
Tel: [phone]
Email: [email protected]
For information on other authorised service centres worldwide
contact Mission International, UK.
A world wide distributors list is available on the Mission website:
www.mission.co.uk
- Any loss, damages and/or malfunction caused to any product(s)
which is/are connected to any of the products covered by this
warranty.
- Any damages, loss and liability, whether direct, indirect, incidental,
consequential special, punitive or otherwise, howsoever caused
by, arising out of or otherwise, in relation to the installation,
delivery, use, service, repair, replacement and/or maintenance of
the product;
- Any damages, loss and liability under this warranty in respect of
any act, omission, or negligence of any of their technicians,
employees, agents, representatives or independent contractors
relating to the actual or purported performance of any of the
obligations under this warranty.
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20