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Polk Signature Elite ES15 Bookshelf Speaker - Hi-Res Audio Certified, Dolby Atmos & DTS:X...
More product info
From Polk Audio
This report was last updated 11/23/2022.
Refresh the report to view the most up-to-date data available:
Refresh the report to view the most up-to-date data available:
Review Hijacking Alert!
102 reviews are coming from a seemingly different product variation:
102 reviews are coming from a seemingly different product variation:
Polk Signature Series S15 Bookshelf Speakers for Home Theater Surround Sound and Premium Music ... (Example Review 
)
)
Learn more about Review Hijacking.
Review Hijacking Alert!
Until Sep 2, 2021, this listing appears to have been a different product::
Until Sep 2, 2021, this listing appears to have been a different product::
Polk Signature Series S15 Bookshelf Speakers for Home Theater Surround Sound and Premium Music ...
Learn more about Review Hijacking.
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Note: We only analyze "reviews" and ignore one-tap "ratings".
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Report Card
Pass Overall Grade
FAIL 
Deleted Reviews
Deleted ReviewsFAIL Suspicious Reviewers
Suspicious ReviewersPASS Rating Trend
Rating TrendPASS Unverified Purchases
Unverified PurchasesPASS Word Count Comparison
Word Count ComparisonPASS Phrase Repetition
Phrase RepetitionPASS Overlapping Review History
Overlapping Review HistoryPASS Reviewer Ease
Reviewer EasePASS Brand Repeats
Brand RepeatsPASS Incentivized Reviews
Incentivized ReviewsN/A Reviewer Participation
Reviewer Participation
Most Trusted Reviews
There's not a whole lot I can say about them. ... [Go to full review]
Feb 24, 2022
100%
TRUST
TRUST
-
Verified Purchaser
-
Easy Grader (avg. rating: 4.7)
One-Hit Wonder
Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
Critical Reviewer (avg. rating: 3.1)
Least Trusted Reviews
I would highly recommend these speakers, they are great for ... [Go to full review]
Jan 2, 2020
19%
TRUST
TRUST
-
Verified Purchaser
-
Contains repetitive phrases (show)
-
Brand Repeater (2 of 7 reviews for this brand; avg rating: 5.0) -
Easy Grader (avg. rating: 5.0)
Overrepresented Participation (posted 24 Reviews)
Overlapping Review History: reviewed 1 of 9 top products
Analysis Details
Fail Deleted Reviews
Deleted Reviews
We discovered a total of 3 deleted Reviews for this product, with an average rating of 4.3. Even though deleted reviews don't affect the average rating, the fact that action was taken to delete reviews raises some red flags about the integrity of the reviews for the product as whole.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
- We don't have a magic ability to collect every single deleted review; we can only identify reviews as deleted if we collect them on one date and then notice they are no longer visible on a subsequent date.
- We have no information on reviews that were never published in the first place.
- We also don't know why these reviews were removed. It could be action from the platform, personal decision by the review author, part of an entire account closure, even some data error on our part, etc.
4.3 average rating of deleted reviews
Fail Suspicious Reviewers
Suspicious Reviewers
Take-Back Reviewers
Approximately 55% of reviewers have had at least one of their past reviews for another product deleted. This is an excessively large percentage of Take-Back Reviewers which may indicate unnatural reviews.
Pass Rating Trend
Rating Trend
We didn't notice any signals that would indicate reviews were created unevenly over time.
Read more about our Rating Trend test.
Read more about our Rating Trend test.
Pass Unverified Purchases
Unverified Purchases
20 of the 629 total reviews for this product are unverified purchases. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Unverified purchases may be the result of Kindle Unlimited readers, buyers who didn't pay full price, or reviewers who did not purchase the product at Amazon. Read more about our Unverified Purchases test.
Pass Word Count Comparison
Word Count Comparison
-
- <10%
- Have an overrepresented word count
We didn't find any review word count groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Word Count Comparison test.
Read more about our Word Count Comparison test.
Pass Phrase Repetition
Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
Less than approximately 10% of reviews use substantial repetitive phrases between them. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Overlapping Review History
Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
<10% also reviewed:
Double Edge Safety Razor, Regular Handle, Knurled by Edwin Jagger
<10% also reviewed:
Polk Audio PSW10 10-Inch Powered Subwoofer and... by Polk Audio
<10% also reviewed:
Polk Audio T Series 3 Channel Home Theater Bundle... by Polk Audio
<10% also reviewed:
Georgia-Pacific Spectrum Standard 92 Multipurpose... by Georgia-Pacific
<10% also reviewed:
TRIDENT AG-XT912-TG Droid Razr Maxx By Motorola... by t
<10% also reviewed:
Belkin Grip Sheer Case and Cover for Samsung... by Belkin
<10% also reviewed:
Ultimate Bore Cleaner for Rifle, Pistol &... by Ultimate Rifle Build
<10% also reviewed:
SoundPEATS Bluetooth Earphones, Wireless 5.0... by SoundPEATS
<10% also reviewed:
Shapewell Women's Medium Impact Racerback... by Shapewell
Approximately 25% of reviewers have substantial overlapping product review history. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Reviewer Ease
Reviewer Ease
The ease score is the average rating for all reviews that a given reviewer submits. The average ease score for reviewers of this product is 4.2, while the average ease score for reviewers in this category is 4.3.
4.2 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeats
Brand Repeaters
Approximately 15% of reviewers have reviewed other products for this brand. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Incentivized Reviews
Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
-
- <10%
- Admitted to receiving an incentive
We didn't detect any reviews that used language indicating they were incentivized.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.