Radiotehnika Sigma 1.02 floorstanding speakers
89.8 dB/W / 6 Ω · f3≈42 Hz (bass 8/10) · 25–250 W · floorstanding, 2.5-way, 2×200 mm · HF ±2 dB · neutral; energetic (spec.); load: low; detail 6/10 (spec.) · room 18–35 m² · mid
Instalment: Buy now, pay later: 0-0-10 at our expense
Delivery by: 2026-11-09
prices and stock as of 2026-11-05
Audiomania expert verdict
A 2.5-way floorstander with high sensitivity (91 dB) and twin 20 cm Polyglass woofers — for people who play rock, electronic and dense genres loud and want drive and scale rather than analytical neutrality. Best in 18–35 m² rooms, needs no powerful amplifier (25 W minimum per the manufacturer), and the ±2 dB treble switch tunes it to the room. AI draft, under review
Ask about Radiotehnika Sigma 1.02
Will it suit your amplifier or room, what else to buy, what to compare with.
In brief
Best if you are looking for:
- loud, energetic, driving sound for rock, metal and electronic music AI draft, under review
- deep, physical bass without a subwoofer (42 Hz at −3 dB, twin 20 cm woofers) AI draft, under review
- a wide choice of amplifiers: 91 dB / 6 Ω is an easy load, works with modest power AI draft, under review
- rooms of 18–35 m², incl. open-plan — with an amplifier of 100 W or more AI draft, under review
- treble adjustable to the room and the recording (±2 dB switch) AI draft, under review
Keep in mind:
- unforgiving of poor recordings AI draft, under review
- energetic rather than gentle — for chamber jazz and classical at the same price consider Gamma 3.02 AI draft, under review
- a large cabinet (28 × 105 × 35.5 cm, 27.7 kg) — needs space and benefits from wide spacing AI draft, under review
- single pair of screw terminals — no bi-wiring or bi-amping AI draft, under review
Product DNA
L080%A structured sound passport: every value carries a source and a confidence.
- Tonal balance
- neutralreview0.5
± 1
Alternative value
- slightly bright Audiomania specialist0.5
«ярче, напористее» относительно Gamma 3.02 (которая мягче и нежнее)
- slightly bright Audiomania specialist0.5
- Delivery character
- energeticAudiomania specialist0.75
- Bass depth
- 8calculated1
- Bass control
- 7review0.5
- Detail resolution
- 6Audiomania specialist0.5
- Plays loud
- not enough data to calculate
- Load difficulty
- 3/10 (low)calculated0.5
- Drive difficulty
- lowcalculated0.5
- Amplifier topology fit
- ideal: class A, class AB, class D, class G, hybrid; acceptable: AV receiver; less suitable: single-ended tubecalculated0.5
- AV receiver OK
- yescalculated0.5
- Subwoofer need
- music: not needed; cinema: optionalcalculated1
- Placement sensitivity
- 5calculated0.5
- Distance to rear wall
- 40–60 cm (min 30)calculated0.5
± 1
Alternative value
- 25–50 cm (min 20) calculated0.5
Если порт передний (как у Sigma 1.01): {10, 15–40} +10 см
- 25–50 cm (min 20) calculated0.5
- Near-wall OK
- yesreview0.5
- Cable gauge
- 2.5–4 mm² (min 1.5)calculated0.5
- Cable termination
- bare wire, banana, spade, pinspec sheet0.75
- Use scenarios
- good: Open-plan room; less suitable: Rooms under 12 m²calculated0.5
- Optimal room area
- 18–35 m² (15–45)calculated0.5
- Tier
- midcalculated1
- What else you need
- amplifier, speaker cablecalculated1
Sound profile
- Bass8/10calculated
in-band percentile: 83
- Detail6/10Audiomania specialist
too few models in the band for a percentile
- Soundstage7/10review
too few models in the band for a percentile
- Microdynamics6/10review
too few models in the band for a percentile
- Emotionnot yet auditioned
- Analyticity6/10Audiomania specialist
too few models in the band for a percentile
- Versatilitynot yet auditioned
- Ease of drive8/10calculated
in-band percentile: 50
Scores are relative to other models of the same category and price band (100–150k ₽). An empty bar means not yet auditioned.
What the experts say
«Металл… здесь Sigma 1.02 проявили выдающуюся макродинамику. Они играли ровно, энергично, без сжатия или хаоса на кульминациях. Звук был мощным, масштабным, сохраняя при этом контроль над каждым инструментом»
soundex.ru, 2026 Read the review
«Это прозрачный на ВЧ, тёплый, избегающий стерильных замашек звук, который вменяет себе всеядность»
Stereo.ru, 2025(about a sibling model) Read the review
«Полочники Sigma 1.01 отличаются от напольников только глубиной баса, характер у них идентичный»
Аудиомания · Мир Hi-Fi Read the review
AI summary of expert reviews
from 2 professional sourcesExperts most often note:
- outstanding macrodynamics and control at loud climaxes AI draft, under review
- taut, weighty bass from the 20 cm Polyglass drivers AI draft, under review
- the ±2 dB treble switch is genuinely useful AI draft, under review
Occasional remarks:
- unforgiving of poor recordings AI draft, under review
- the titanium tweeter gets sharp on bright recordings — the “−” position helps AI draft, under review
Sound character
The key to the Sigma 1.02 is high sensitivity (91 dB) plus two 20 cm Polyglass drivers: it “plays loud and dynamic even with modestly powered amplifiers” and does not compress climaxes. AI draft, under review[4]
Bass is deep and physical (“you feel the bass with your whole body”), yet “powerful, taut and controlled”. AI draft, under review[3]
The midrange — per the test of the sibling Sigma 1.01 with the same drivers — is “soft and comfortable, hiding no detail but not playing microscope either”. AI draft, under review[2]
Treble — a titanium dome in a waveguide: fast, detailed and transparent; on bright recordings it can get sharp, and the “−2 dB” switch position fixes that. AI draft, under review[3]
Against the Gamma 3.02 from the same range, the Sigma is “brighter, punchier, more energetic and driving” while the Gamma is “more detailed, transparent, gentle and natural”; in sum, “a choice for the all-round music lover leaning towards modern guitar and electronic music”. AI draft, under review[2]
Use scenarios
Suits:
- home stereo in 18–35 m² AI draft, under review
- loud rock, metal and electronic music AI draft, under review
- front pair in a stereo “cinema” with an HDMI ARC amplifier (a real request: TV + streamer) AI draft, under review
- tube and low-power amplifiers — thanks to 91 dB AI draft, under review
- open-plan rooms — with a 100 W+ amplifier AI draft, under review
Less suited to:
- near-field and desktop — a large floorstander AI draft, under review
- studio monitoring — the delivery is energetic, not monitor-like AI draft, under review
- rooms under 15 m² — risk of too much bass; pick the Sigma 1.01 AI draft, under review
- listeners after a gentle, chamber sound — look at the Gamma 3.02 AI draft, under review
Technologies and construction
2.5-way design
What it is: Two identical 20 cm drivers: one covers bass only, the other bass and midrange; the tweeter handles the top.
Practical benefit: “more output and dynamic range in the bass without overloading the driver responsible for the midrange” — smoothness and scale (soundex.ru).
2 × 20 cm Polyglass woofers
What it is: Polyglass composite cone — a paper base with a glass micro-bead coating.
Practical benefit: “fast and precise, minimising distortion”; “powerful, taut and controlled bass that does not get lost in complex passages” (soundex.ru).
25.4 mm titanium-dome tweeter in a waveguide
What it is: A 25.4 mm titanium dome; per the review, in a waveguide with a phase plug.
Practical benefit: “fast, detailed and transparent treble” and “resistance to overload”; the waveguide “forms a more stable and wider comfortable listening zone”.
±2 dB treble level switch
What it is: A front-panel switch shifts the tweeter level by ±2 dB.
Practical benefit: “lets you fine-tune the sound to the room acoustics… or to the quality of a particular recording” (soundex.ru); “works noticeably but gently enough” (Stereo.ru).
18–21 mm braced MDF cabinet
What it is: MDF walls up to 21 mm thick with internal bracing; Black Ash finish.
Practical benefit: Reduces resonances — “directly affects the clarity and articulation of the bass” (soundex.ru).
Spikes (4 pcs) and cloth grilles
What it is: Four spikes and cloth grilles are included.
Practical benefit: Decoupling from the floor; parquet and laminate need spike pads.
Amplifier requirements
Recommended power
48–151 W
48–151 W into 8 Ω is the sweet spot; 25–250 W acceptable
Practice band for 27 m² at average level: 47–78 W
R-AMP-POWER · 1.0.0+c1.0.0 · confidence 1
- Load difficulty
- 3/10 (low)calculated0.5
- Preferred amplifier character
- No character preference yet — we recommend auditioning the pairing.
Suits:
- class A — ideal
- class AB — ideal
- class D — ideal
- class G — ideal
- hybrid — ideal
- most modern AV receivers
Note:
- push-pull tube — no data (minimum impedance not stated)
- single-ended tube — not recommended
Calculator: is the amplifier enough
Recommended system connection
To get the most from the system we recommend:
Speaker cable
- Gauge
- 2.5 mm²
- Recommended length
- up to 13.1 m per channel
- Termination
- bare, banana, spade, pin
For 3 m per speaker at 3.6 Ω, 0.57 mm² is enough; the Audiomania standard is 2.5 mm². Radiotehnika Sigma 1.02 has screw terminals: both bananas and bare wire fit.
R-CABLE · 1.0.0+c1.0.0
In stock now
1,050 RUB · in stock
Why
For 3 m per speaker at 3.6 Ω, 0.57 mm² is enough; the Audiomania standard is 2.5 mm². Radiotehnika Sigma 1.02 has screw terminals: both bananas and bare wire fit.
429 RUB · in stock
Why
For 3 m per speaker at 3.6 Ω, 0.57 mm² is enough; the Audiomania standard is 2.5 mm². Radiotehnika Sigma 1.02 has screw terminals: both bananas and bare wire fit.
9,690 RUB · in stock
Why
For 3 m per speaker at 3.6 Ω, 0.57 mm² is enough; the Audiomania standard is 2.5 mm². Radiotehnika Sigma 1.02 has screw terminals: both bananas and bare wire fit.
Room placement
- Minimum distance to the rear wall
- 30 cm; recommended 40–60 cm
- Distance between speakers
- 3.1–3.5 m
- Toe-in
- 10–15°
Radiotehnika Sigma 1.02: needs ≥ 30 cm from the wall (ideally 40–60), 3.1–3.5 m apart, toe-in 10–15°. Give the wall distance for an exact verdict.
R-PLACEMENT · 1.0.0+c1.0.0
- Near-wall placement
- yesreview0.5
- Placement sensitivity
- 5calculated0.5
From the specialists' experience:
- Benefits from wide spacing: “you will especially like it if you can space the speakers wider”.[1]
- Treble switch: “the neutral position turned out to be the golden mean” (soundex.ru); in a bright room or on bright recordings — “−2”.[2]
Recommended right now
over the 45-product sampleIn-stock, current models only; refreshed with prices (2026-11-05). Not indexed.
104,880 RUB · in stock
Why
Radiotehnika Sigma 1.02: 6 Ω nominal — AudioLab 7000A is rated for loads from 4 Ω, compatible. AudioLab 7000A delivers ≈93 W into 6 Ω; the practice band for Radiotehnika Sigma 1.02 in 27 m² at an average level is 47–78 W. Adequate.
249,999 RUB · in stock
Why
Radiotehnika Sigma 1.02: 6 Ω nominal — Cambridge Audio EXA100 is rated for loads from 4 Ω, compatible. Cambridge Audio EXA100 delivers ≈132 W into 6 Ω against a 47–78 W practice band for Radiotehnika Sigma 1.02 in 27 m² — the headroom that gives bass control and low-volume detail.
109,990 RUB · in stock
Why
Radiotehnika Sigma 1.02: 6 Ω nominal — Denon PMA-900HNE is rated for loads from 4 Ω, compatible. Denon PMA-900HNE delivers ≈69 W into 6 Ω; the practice band for Radiotehnika Sigma 1.02 in 27 m² at an average level is 47–78 W. Adequate.
38,990 RUB · in stock
Why
Radiotehnika Sigma 1.02: 6 Ω nominal — Radiotehnika RTM01 is rated for loads from 4 Ω, compatible. Radiotehnika RTM01 delivers ≈66 W into 6 Ω; the practice band for Radiotehnika Sigma 1.02 in 27 m² at an average level is 47–78 W. Adequate.
rules version 1.0.0+c1.0.0
Audiomania ready systems
Assembled by the rules from in-stock products around this model; prices as of 2026-11-05.
Optimal
- Speakers: Radiotehnika Sigma 1.02 floorstanding speakers (this model)124,990 RUB
- Amplifier: Audiolab 6000A integrated amplifier61,990 RUB
- Speaker cable: Radiotehnika Volna SP2.5 Banana finished speaker cable9,690 RUB
Total: 196,670 RUB
Checks (9)
- R-ROOM-FITideal
- R-PLACEMENTno data
- R-SUB-NEEDnot needed
- R-AMP-IMPEDANCEfits
- R-AMP-POWERadequate
- R-SOURCE-CHAINfits
- R-AMP-CHARACTERfine
- R-TIER-FITbalanced
- R-CABLEfits
Optimal
- Speakers: Radiotehnika Sigma 1.02 floorstanding speakers (this model)124,990 RUB
- Amplifier: Audiolab 7000A integrated amplifier104,880 RUB
- Speaker cable: Radiotehnika Volna SP2.5 Banana finished speaker cable9,690 RUB
Total: 239,560 RUB
Checks (9)
- R-ROOM-FITideal
- R-PLACEMENTno data
- R-SUB-NEEDnot needed
- R-AMP-IMPEDANCEfits
- R-AMP-POWERadequate
- R-SOURCE-CHAINfits
- R-AMP-CHARACTERfine
- R-TIER-FITbalanced
- R-CABLEfits
Comparison with similar models
How it differs from Radiotehnika Gamma 3.02 floorstanding speakers
Radiotehnika Sigma 1.02 floorstanding speakers:
- Low-frequency limit: 42 Hz vs 46 Hz
- Nominal impedance: 6 Ω vs 4 Ω
- HF level adjustment: 2 dB vs none
Radiotehnika Gamma 3.02 floorstanding speakers:
- Height: 1,005 mm vs 1,050 mm
Radiotehnika Sigma 1.02 and Radiotehnika Gamma 3.02 are the same tier; they differ in character and in the figures below.
Full comparison →How it differs from KEF Q750 floorstanding speakers
Radiotehnika Sigma 1.02 floorstanding speakers:
- Sensitivity: 89.8 dB/W vs 88 dB/W
- Low-frequency limit: 42 Hz vs 48 Hz
- HF level adjustment: 2 dB vs none
KEF Q750 floorstanding speakers:
- Nominal impedance: 8 Ω vs 6 Ω
- Height: 977 mm vs 1,050 mm
The sound difference is not confirmed by sources — specs only.
Radiotehnika Sigma 1.02 and KEF Q750 are the same tier; they differ in character and in the figures below.
Full comparison →
Specifications
Main
- Sensitivity
- 91 dB (2.83 V)
- Nominal impedance
- 6 Ω
- Low-frequency limit
- 42 Hz (-3 dB)
± 1
sources disagree
- 38 Hz spec sheet0.75
Вторая строка таблицы с тем же ключом: «38 Гц - 25 кГц» без допуска
- 38 Hz spec sheet0.75
- High-frequency limit
- 25,000 Hz
- Recommended amplifier power
- 25–250 W
- Ways
- 2.5
- HF level adjustment
- 2 dB
Construction
- Enclosure
- bass reflex
± 1
sources disagree
- bass reflex, port: front review0.5
У родственной Sigma 1.01 порт передний (Stereo.ru и специалист); для 1.02 не подтверждено
- bass reflex, port: front review0.5
- Cabinet
- МДФ, 21 mmAudiomania
- Wall-mount points
- nocalculated
- Finishes
- Black Ash
- Grille
- removable: yes, magnetic: no
Drivers
- Bass drivers
- 2 × 200 mm, композит Polyglass
- Tweeter
- 25.4 mm, titanium, waveguide
± 1
sources disagree
- 25.4 mm, titanium spec sheet1
Строго по таблице (без волновода)
- 25.4 mm, titanium spec sheet1
- Tweeter height from base
- 819 mmcalculated
Connection
- Terminals
- one pair, screw
Dimensions
- Dimensions (W×H×D)
- 280 × 1,050 × 355 mm
Weight
- Weight
- 27.7 kg (each)
Box contents
- In the box
- Тканевые защитные решетки, Шипы — 4 шт.
- Warranty
- 24 months
Documents
FAQ
›Which amplifier if I need HDMI and an HT-bypass input (TV + external pre/streamer)?
›Sigma 1.02 or Gamma 3.02 for rock at high volume in 20–35 m²?
›How does it sound — how much punch?
›Will it suit a 20 m² room?
The answer depends on:
- if room, m²: 12: 12 m² is below the 15 m² minimum by rule: risk of too much bass. The bookshelf Sigma 1.01 with the same character is the better choice. AI draft, under review
›Do I need a subwoofer?
›Will a tube amplifier work?
›The speakers are 6 Ω — is that safe for my amplifier or receiver?
›What is the ±2 dB treble switch for, and which position should I use?
›Which cable, and how long?
›How close to the wall can they go, and how far apart?
›I listen quietly — will the sound stay tight at low volume?
›How does it differ from the bookshelf Sigma 1.01?
Customer reviews
4.7 of 5 · 3 ratingsВиктор Ш., Москва · 2026-05-24Excellentverified purchase
Качественный, мощный звук. То что я и искал. Басы очущаешь всем телом.
Игорь Т., Москва · 2026-01-19Goodverified purchase
Для своей ценовой категории отлично.
Audiomania expert opinion
Radiotehnika Sigma 1.02 is one of the easiest loads in its price class (91 dB, 6 Ω), with a delivery our specialist described as “brighter, punchier, more energetic and driving” than the sibling Gamma 3.02. AI draft, under review[3]
It is built for loud listening to dense music in 18–35 m² rooms; soundex.ru notes “outstanding macrodynamics” with no compression at climaxes. If you value gentleness, detail and chamber vocals more, audition the Gamma 3.02 next to it; for rooms under 15 m² take the bookshelf Sigma 1.01 with the same character. AI draft, under review[4]