In this review, we will be comparing 750 and 770, two Passive Bookshelf speakers by Mission.
Let's have a brief look at the main features
of Mission 750 and Mission 770 first before getting into our more
detailed comparison.
| Key Specs | Mission 750 | Mission 770 |
|---|
| Brand | Mission
United Kingdom · founded 1977 | Mission
United Kingdom · founded 1977 |
|---|
| Design | 2-way | 2-way |
|---|
| Tweeter | 1.25" Soft-Dome | 1.25" Soft-Dome |
|---|
| Woofer | 5.25" Polypropylene | 8" mineral-loaded polyproylene |
|---|
| Frequency response | 48-20k Hz | 42-20,000 Hz |
|---|
| Sensitivity | 86 dB | 88 dB |
|---|
| Impedance | 6 ohms | 8 ohms |
|---|
| Power range | 25-100 watts | 25-200 watts |
|---|
| Weight | 9.00kg / 19.8lbs | 27.20kg / 59.8lbs |
|---|
| Dimensions (H x W x D) | 14" x 8-1/2" x 12"
355.0 x 216.0 x 305.0mm | 23-1/4" x 11" x 11-7/8"
590 x 279.4 x 301 mm |
|---|
What size room are the Mission 750 and Mission 770 speakers good for?
The size of the room in which you are planning to use these loudspeakers is an important decision
factor. Here we have compared their suitability to various sizes of environments considering their size
and max power parameters:
| Listening Environment* |
Mission 750 |
Mission 770 |
| Near-field |
Good |
Poor |
| Small Room |
Good |
Average |
| Mid-size Room |
Average |
Good |
| Large Room |
Poor |
Average |
| Very Large Room |
No way |
Poor |
(* Approximate Room sizes: Small < 100sq. ft / 9 m2,
Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: >
400 sq. ft / 36 m2.
Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual
listening experience changes depending on floor height, room shape, surface materials, listening
position, speaker locations, etc.)
The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.
Drivers
Both 750 and 770 are 2-way speakers.
Mission 750Mission 770
TweeterWoofer
Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.
| Driver |
Mission 750 |
Mission 770 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1.25-inch
|
1.25-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 5.25-inch
|
1 x 8-inch
|
750 features a 1.25" Silk Soft-Dome Tweeter and 1 x 5.25" Polypropylene Woofer with a Crossover frequency at 2.4kHz. On the other hand, the 770 features a 1.25" Soft-Dome Tweeter and 1 x 8" mineral-loaded polyproylene Woofer with a Crossover frequency at 2900Hz.
Frequency Response
750 has a frequency range of 48-20k Hz whereas 770 has a frequency range of 42-20,000 Hz. With a minimum frequency of 42Hz, the 770 can go significantly deeper on the low side and provide stronger bass compared to the 750's min frequency of 48Hz.
The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Bookshelf class in our database.
Low Frequency
Bookshelf Speakers
Neither pair reaches down to 20Hz, the usual definition of full-range, which is normal for speakers of this size. If you want the bottom octave for movies or bass-heavy music, add a subwoofer to whichever you choose. Visit our Powered Subwoofers section to find out more about the available options.
Impedance and Sensitivity
750 is a 6 ohms speaker compared to the 770 which has a nominal impedance of 8 ohms.
These two speakers also have different sensitivity levels. 750 sensitivity is rated at 86 dB and the 770's is rated at 88 dB. This 2 dB difference makes the Mission 770 a more sensitive speaker compared to Mission 750, hence will play louder with the same amount of watts.
Sensitivity
Bookshelf Speakers
Power Range
Power
range is the range of input power in watts RMS that a loudspeaker is designed to handle. Staying
within that range gives nominal performance; driving the speaker beyond its maximum wattage can damage it.
770 can handle a max power of 200 watts RMS, whereas 750 has a max power handling value of 100 watts RMS, 100 watts less than the 770.
Note that higher power handling does not make a speaker louder: that depends mainly on
sensitivity and impedance. The calculator below shows how loud each of these actually plays
on a real amplifier.
Which plays louder on your amplifier?
Starting with a popular amplifier - change it to the one you own, or any you are
considering, and watch both numbers move.
Input Type and Bi-Amping / Bi-Wiring
750 features Post type posts and 770 has a Post type posts. None of these speakers feature bi-amping/bi-wiring.
Mission 770's Post terminals
Physical Specs
The size of a speaker can sometimes be an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Mission 750's and Mission 770's external dimensions. Mission 750 has external dimensions of 355.0 x 216.0 x 305.0mm (14 x 8-1/2 x 12inch) whereas Mission 770 has external dimensions of 590 x 279.4 x 301 mm (23-1/4 x 11 x 11-7/8 inch).
Mission 750 is 63.4mm narrower and 235mm shorter than Mission 770 but it is also 4mm deeper.
Size, drawn to scale
Both speakers and both views share one scale, so everything here is directly comparable. Hover a box for its dimensions.
One scale for both, standing on the same surface and pushed back to the same wall, so the deeper one visibly sticks out further.
Mission 770 needs about 28% more floor or shelf area. Mission 770 is 235mm taller.
Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base surface area of the Mission 750 is approximately 658.8cm2 / 102.1inch2 and base area of the Mission 770 is approximately 841.0cm2 / 130.4inch2. The 750 requires 22% less surface area than the 770 which gives it a small advantage on placement in tight spaces.
Weight Comparison The weight of a loudspeaker can become an important factor if you need to move and reposition the unit often. Weight of a speaker can also "sometimes" be an indicator of the rigidity of the enclosure and the quality of the internal components used. The Mission 750 weighs 9.00kg / 19.8lbs and the Mission 770 weighs 27.20kg / 59.8lbs. This makes the 770 202% heavier than the 750.
Here is a comparison of how 750 and 770's weights compare with the average, max and min weights in Passive Bookshelf class.
Weight
All Bookshelf Speakers
What's in the Box of Mission 770?
Here are the items that come with the 770:
- Mission M770 Speaker:
- 2 Stand-mount loudspeakers
- 2 Grilles
- User Manual
- Mission M770 Stand:
- 2 Top-plates
- 2 Bases
- 8 Upright posts
- 8 Spike feet
- Hardware
- Instructions
 Height |
355mm
vs
590mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
658cm2
vs
841cm2
|
Takes less floor space |
 Price per pair* |
1199USD
vs
5000USD
|
costs less (*prices may change depending on the seller, location and time) |
 Max Input Power |
200 watts
vs
100 watts
|
Handle more power from your amplifier |
 Sensitivity |
88 dB
vs
86 dB
|
Play louder with same amount of amplification power |
 Nominal Impedance |
8 ohms
vs
6 ohms
|
Less selective with amplifiers |
 Minimum Impedance |
6 ohms
vs
4.5 ohms
|
Very low impedance levels puts more pressure on amplifier |
 Woofer Size |
8 inches
vs
5.25 inches
|
Larger woofer |
|
Low Frequency Response |
42 Hz
vs
48 Hz
|
Generates deeper bass |
| General |
Mission 750 |
Mission 770 |
| Brand |
Mission |
Mission |
| Speaker Type |
Bookshelf speakers |
Bookshelf speakers |
| Power Range |
25-100 watts |
25-200 watts |
| Sensitivity |
86 dB |
88 dB |
| Impedance |
6 ohms |
8 ohms |
| Impedance |
4.5 ohms |
6 ohms |
| Frequency Response |
48-20k Hz |
42-20,000 Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
5.25" |
8" |
| Woofer Composition |
Polypropylene |
mineral-loaded polyproylene |
| Woofer Surround Material |
n/a |
low-density nitrile |
| Tweeter Size |
1.25" |
1.25" |
| Tweeter Type |
Soft-Dome |
Soft-Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
2.4kHz |
2900Hz |
| Firing Direction |
n/a |
Front |
Physical Specs |
|
|
| Height |
355.0mm (14") |
590.0mm (23.2") |
| Width |
216.0mm (8.5") |
279.4mm (11") |
| Depth |
305.0mm (12") |
301.0mm (11.9") |
| Weight |
9.00kg (19.8lbs) |
27.20kg (59.8lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
n/a |
MDF, particle board, wood |
| Available Colors |
n/a |
Walnut,Black Oak |
| Mounting Bracket |
|
No |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
No |
Other |
|
|
| Parts Warranty |
|
3 years |
| Labor Warranty |
|
3 years |
These sit in different price classes - Mission 770 costs roughly 4.2x what Mission 750 does. Expect it to lead on paper; the question is whether the gap is audible enough in your room to be worth it.
| Area | Better | Why |
|---|
| Bass | B | Mission 770 digs deeper - 42Hz against 48Hz. A subwoofer would even that out. |
| Amplifier needs | B | Mission 770 is more sensitive (88dB vs 86dB), so it goes louder on the same amplifier. |
| Amplifier match | B | Mission 770 is the easier load at 8 ohms. |
| Headroom | B | Mission 770 takes more power (200W vs 100W) - more in hand in a big room. |
| Size | depends | Mission 750 is easier to place; Mission 770 is bigger, which usually goes with fuller bass. Your room decides. |
| Price | A | Mission 750 is cheaper - $1,199 against $5,000, about 76% less; arguably a different class. |
A Mission 750 B Mission 770
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both speakers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
The usual trade-off: Mission 770 measures better, Mission 750 costs about about 4.2x the price% less. Whether that gap is worth the money is the call only you can make - and in a normal room it is often smaller than the numbers suggest. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 48Hz anyway, which makes the cheaper Mission 750 much easier to justify. Match it to your room: we rate Mission 750 the better fit for near-field listening and a small room, and Mission 770 for a mid-size room and a large room.
And remember what a spec sheet cannot show: how each looks in your room and whether the finish suits it, what dealer support and warranty are like where you live, and how they actually sound to you. If you can hear them first - ideally with your own music - that will tell you more than any number above.