HiFi SPECS

A/B comparison · Speakers

Elac BS 73 vs Martin Logan Motion 20

Specs from both manufacturer datasheets Updated Jan 1, 2024

Elac BS 73 vs Martin Logan Motion 20 in brief

  • Spec rows: Elac BS 73 wins 0, Martin Logan Motion 20 wins 1, 8 tied or not compared, of 9 rows.
  • Our scores: Elac BS 73 8.6/10, Martin Logan Motion 20 8.4/10.
  • Elac BS 73 wins: midrange clarity (8.5 vs 7.2), design (9 vs 8.9), value for money (9.5 vs 8.6).
  • Martin Logan Motion 20 wins: sound quality (8.5 vs 8.3), bass response (8.9 vs 8.8), treble detail (8.5 vs 7.5).
  • Who should buy which: Pick the Elac BS 73 for midrange clarity, design and value for money. Pick the Martin Logan Motion 20 if sound quality, bass response and treble detail matter most.
CH A Elac BS 73

Elac BS 73

Channel A · Bookshelf · 2014
VS
CH B Martin Logan Motion 20

Martin Logan Motion 20

Channel B · Floorstanding (Tower) · 2012
Elac BS 73 Martin Logan Motion 20
20 Hz 100 1k 10k 20k
8.6/10Elac 8.4/10Martin Logan

Rows won, of 9 compared Elac 0 · Martin Logan 1 · tied or not compared 8

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

2-way Configuration 3-way
1x 0.98" Tweeter + 1x 5.91" Mid-woofer Drivers 1x 1" Tweeter + 1x 5.5" Mid-woofer
45 Hz to 28 kHz Frequency responseReference not published 46 Hz to 25 kHz ±3 dB
Ported (Bass Reflex) Enclosure Ported (Bass Reflex)

Power, electrical, physical

87.5 dB SensitivityReference not published 90 dB 2.83 V/1 m
4 Ω Impedance 4 Ω
20 to 120 W Amp range 20 to 200 W
284 mm Height · weight 929 mm · 37 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

Elac BS 73 Martin Logan Motion 20
Sound quality 8.3 8.5
Bass response 8.8 8.9
Midrange clarity 8.5 7.2
Treble detail 7.5 8.5
Design 9.0 8.9
Value for money 9.5 8.6

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

Availability

Where they stand on price

Elac BS 73

The Elac BS 73 isn't sold new any more. The closest current model is the Elac Debut 3.0 DB63-BK.

Why this one: Current Debut bookshelf with a 6.5 inch woofer, closest size to the old BS73 woofer

Availability last checked Jan 1, 2024
Martin Logan Motion 20

The Martin Logan Motion 20 isn't sold new any more. The closest current model is the Martin Logan Motion Foundation F1.

Why this one: The Foundation series replaced the whole Motion tower lineup and F1 sits in the same compact 3-way slot.

Availability last checked Jan 1, 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.