HiFi SPECS

A/B comparison · Speakers

Dali Opticon 6 vs Polk Audio ES20

Specs from both manufacturer datasheets Updated May 24, 2024

Dali Opticon 6 vs Polk Audio ES20 in brief

  • Spec rows: Dali Opticon 6 wins 1, Polk Audio ES20 wins 1, 10 tied or not compared, of 12 rows.
  • Our scores: Dali Opticon 6 8.6/10, Polk Audio ES20 8.7/10.
  • Dali Opticon 6 wins: sound quality (9 vs 8.9), midrange clarity (9 vs 8.8), design (8.5 vs 8).
  • Polk Audio ES20 wins: bass response (8.7 vs 7.5).
  • Tied: treble detail (8.5 each), value for money (9 each).
  • Who should buy which: Pick the Dali Opticon 6 for sound quality, midrange clarity and design. Pick the Polk Audio ES20 if bass response matters most.
CH A Dali Opticon 6

Dali Opticon 6

Channel A · Floorstanding (Tower) · 2015
VS
CH B Polk Audio ES20

Polk Audio ES20

Channel B · Bookshelf · 2021

About $399 a pair

Dali Opticon 6 Polk Audio ES20
20 Hz 100 1k 10k 20k
8.6/10Dali 8.7/10Polk Audio

Rows won, of 12 compared Dali 1 · Polk Audio 1 · tied or not compared 10

Datasheet · Side by side

Spec by spec

Built from both structured spec sheets. The delta chip sits on the winning side; rows with no defensible winner carry no chip.

Sound & drivers

Not published Configuration 2-way
1x 1.1" Tweeter Drivers 1x 1" Tweeter + 1x 6.5" Mid-woofer
49 Hz to 32 kHz Frequency responseReference not published 39 Hz to 40 kHz 38 Hz to 45 kHz extended
110 dB +1 dB Max SPL 109 dB
Ported (Bass Reflex) Enclosure Ported (Bass Reflex)
42 Hz Port tuning 49 Hz

Power, electrical, physical

89 dB SensitivityReference not published 87 dB 2.83 V/1 m
4 Ω Impedance 8 Ω
25 to 200 W Amp range 20 to 150 W
Not published Speaker terminals 5-way binding posts Checked against the maker's own sheet, Sep 2026 Source
1016 mm · 41.7 lb Height · weight 356 mm · 17 lb Checked against the maker's own sheet, Sep 2026 Source
3 yr Warranty 5 yr +2 yr

A higher sensitivity figure means the same loudness from less amplifier power. Values come from each manufacturer datasheet.

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From our reviews

How it scored, paired

6 aspects, two channels

Dali Opticon 6 Polk Audio ES20
Sound quality 9.0 8.9
Bass response 7.5 8.7
Midrange clarity 9.0 8.8
Treble detail 8.5 8.5
Design 8.5 8.0
Value for money 9.0 9.0

Each aspect is scored 0 to 10 in our reviews, against the rest of the class.

Availability

Where they stand on price

Dali Opticon 6
Availability last checked May 24, 2024
Polk Audio ES20
Availability last checked May 24, 2024

We do not show live prices; price tiers are our editorial categories. As an Amazon Associate, HiFi Specs earns from qualifying purchases. Our scores and comparisons are never influenced by affiliate partners.