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Diplotop - product comparison - gathers PIONEER SPEC-4 users reviews, tests and opinions.With a data base of unprecedented wealth, 96 reviews for the PIONEER SPEC-4, Diplotop compares the PIONEER SPEC-4 with its competitors in order to find the best.

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High-performance Reliability
Ease of use Value for money

PIONEER SPEC-4 Reviews

Its users find the PIONEER SPEC-4 very user-friendly.On average, they find it much more reliable than its competitors., On this subject, they are unanimous. If you have a problem, or need help, the Diplofix forum can help you choose between the PIONEER SPEC-4 and another product.

Its users give it a very good efficiency score., And, there are many of them who share the same opinion. They find it very cheap You won't get any unpleasant surprises if you look at the instructions in the PIONEER SPEC-4 user manual before buying.
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Manual abstract:
Remove the stoper after checking that connections are correct. Use speakers having an impedance from 1 to 8. Do not install in: --Places where it could injure the driver or passengers if the vehicle stops suddenly. --Places where it may interfere with the driver, such as on the floor in front of the driver's seat. â· Make sure that wires are not caught in the sliding mechanism of the seats, resulting in a short-circuit. â· Confirm that no parts are behind the panel when drilling a hole for installation of the amplifier. Protect all cables and important equipment such as fuel lines, brake lines and electrical wiring from damage. â· Install tapping screws in such a way that the screw tip does not touch any wire. This is important to prevent wires from being cut by vibration of the car, which can result in fire. â· DO NOT allow amplifier to come into contact with liquids due to, for example, the location where the amplifier is installed. electrical shock could result. Also, amplifier and speaker damage, smoke, and overheating could result from contact with liquids. In addition, the amplifier surface and the surface of any attached speakers could become hot to the touch and minor burns could result. â· To ensure proper installation, use the supplied parts in the manner specified. If any parts other than the supplied ones are used, they may damage internal parts of the amplifier, or they may become loose causing the amplifier to shut down. â· Never replace the fuse with one of greater value or rating than the original fuse. Use of an improper fuse could result in overheating and smoke and could cause damage to the product and injury including burns. To ensure proper heat dissipation of the amplifier, be sure of the following during installation. --Allow adequate space above the amplifier for proper ventilation. --Do not cover the amplifier with a floor mat or carpet...

Ease of use
The users were asked the following question :

Is the SPEC-4 easy to use?

96 users answered questions and rated the product on a scale of 0 to 10. The rating is 10/10 if the PIONEER SPEC-4 is very user-friendly.

The reviews (rough results) are presented in the following graph :

00101874131646
012345678910

By leaving the mouse on a column for a few seconds, you can see the number of people who voted to make up the score that appears in the horizontal axis.

Statistical data :

= 8.58
= 1.84

The average score balanced by the number of reviews is 8.58 and the standard differential is 1.84.
High-performance
The users were asked the following question :

Is the SPEC-4 highly efficient?

96 users answered questions and rated the product on a scale of 0 to 10. The rating is 10/10 if the PIONEER SPEC-4 is, in its domain, the best on a technical level, the one offering the best quality, or offering the largest range of options.

The reviews (rough results) are presented in the following graph :

01004626111452
012345678910

By leaving the mouse on a column for a few seconds, you can see the number of people who voted to make up the score that appears in the horizontal axis.

Statistical data :

= 8.70
= 1.93

The average score balanced by the number of reviews is 8.7 and the standard differential is 1.93.
Reliability
The users were asked the following question :

Is the SPEC-4 reliable, sturdy?

96 users answered questions and rated the product on a scale of 0 to 10. The rating is 10/10 if you think that the PIONEER SPEC-4 is a sturdy product, which will last a long time before breaking down.

The reviews (rough results) are presented in the following graph :

01001728102047
012345678910

By leaving the mouse on a column for a few seconds, you can see the number of people who voted to make up the score that appears in the horizontal axis.

Statistical data :

= 8.73
= 1.77

The average score balanced by the number of reviews is 8.73 and the standard differential is 1.77.
Value for money
The users were asked the following question :

Is the SPEC-4 good value for money?

96 users answered questions and rated the product on a scale of 0 to 10. The rating is 10/10 if you think that the PIONEER SPEC-4 is really not expensive considering its features.

The reviews (rough results) are presented in the following graph :

13100689111839
012345678910

By leaving the mouse on a column for a few seconds, you can see the number of people who voted to make up the score that appears in the horizontal axis.

Statistical data :

= 8.19
= 2.31

The average score balanced by the number of reviews is 8.19 and the standard differential is 2.31.

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