In this review, we will be comparing Passif 50 and Mission 770, two Passive Bookshelf speakers from PSB and Mission.
Let's have a brief look at the main features
of PSB Passif 50 and Mission 770 first before getting into our more
detailed comparison.
PSB Passif 50 Key Specs
- 2-way Design
- 1" Dome Tweeter
- 6.5" cast aluminum basket, paper cone Woofer
- 50-20k Hz Frequency Response
- 87 dB Sensitivity
- Impedance: 6ohms
- Power Range:30-200 Wattswatts
- Weight:13.70kg
- Dimensions (H x W x D): 660.0" x 11" x 10"( 660 × 280 × 254mm )
Mission 770 Key Specs
- 2-way Design
- 1.25" Soft-Dome Tweeter
- 8" mineral-loaded polyproylene Woofer
- 42-20,000 Hz Frequency Response
- 88 dB Sensitivity
- Impedance: 8ohms
- Power Range:25-200watts
- Weight:27.20kg
- Dimensions (H x W x D): 590.0" x 11-13/16" x 12-11/16"( 590 x 279.4 x 301mm )
What size room are the PSB Passif 50 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* |
PSB Passif 50 |
Mission 770 |
| Near-field |
Poor |
Poor |
| Small Room |
Average |
Average |
| Mid-size Room |
Good |
Good |
| Large Room |
Average |
Average |
| Very Large Room |
Poor |
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.)
In the following sections, we will get into more detail in order to better understand how the PSB Passif 50 and Mission 770 compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
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Drivers
Both Passif 50 and Mission 770 are 2-way speakers.
| Driver |
PSB Passif 50 |
Mission 770 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1.25-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 6.5-inch
|
1 x 8-inch
|
Passif 50 features a 1" titanium dome with ferrofluid and neodymium magnet Dome Tweeter and 1 x 6.5" cast aluminum basket, paper cone Woofer with a Crossover frequency at 1800Hz. On the other hand, the Mission 770 features a 1.25" Soft-Dome Tweeter and 1 x 8" mineral-loaded polyproylene Woofer with a Crossover frequency at 2900Hz.
Frequency Response
Passif 50 has a frequency range of 50-20k Hz whereas Mission 770 has a frequency range of 42-20,000 Hz. With a minimum frequency of 42Hz, the Mission 770 can go significantly deeper on the low side and provide stronger bass compared to the Passif 50's min frequency of 50Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Bookshelf class in our database.
Low Frequency
Bookshelf Speakers
High Frequency
Bookshelf Speakers
None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.
Impedance and Sensitivity
Passif 50 is a 6 ohms speaker compared to the Mission 770 which has a nominal impedance of 8 ohms.
These two speakers also have different sensitivity levels. Passif 50 sensitivity is rated at 87 dB and the Mission 770's is rated at 88 dB. This 1 dB difference makes the PSB Passif 50 a more sensitive speaker compared to Mission 770, 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. While using
an amplifier within this range ensures the nominal performance , inputting a power that is higher than the
max wattage can result in a damaged speaker.
Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker
compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters
such as Impedance, sensitivity and system efficiencies.
Input Type and Bi-Amping / Bi-Wiring
Passif 50 features 5-Way post posts which make bi-amping or bi-wiring possible. Mission 770 has a Post which doesn't feature bi-amping/bi-wiring.
PSB Passif 50's 5-Way post terminals allows Bi-amping or bi-wiring
Mission 770's Post terminals
Physical Specs
Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare PSB Passif 50's and Mission 770's external dimensions. PSB Passif 50 has external dimensions of 660 × 280 × 254mm ( 26 x 11 x 10-inch) whereas Mission 770 has external dimensions of 590 x 279.4 x 301mm ( 23-1/4inch x 11-13/16inch x 12-11/16inch ) .
Mission 770 is 0.60000000000002mm narrower and 70mm shorter than PSB Passif 50 but it is also 47mm deeper.
Below you can see the front view size comparison of PSB Passif 50 and Mission 770 in scale.
Comparison image of PSB Passif 50 and Mission 770 Size and External Dimensions
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 PSB Passif 50 is approximately 712.0cm2 / 110.4inch2 and base area of the Mission 770 is approximately 841.0cm2 / 130.4inch2. The Passif 50 requires 15% less surface area than the Mission 770 which gives it a small advantage on placement in tight spaces.