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Radiotehnika Volna SP2.5 bulk speaker cable
bulk speaker cableRadiotehnikaL055%

Radiotehnika Volna SP2.5 bulk speaker cable

speaker · 2.5 mm² · per metre · bare wire · speakers ≥ 2 Ω, ≤ 400 W · entry

429 RUBper metrein store· Elektrozavodskaya (Moscow)

Delivery by: 2026-11-09

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prices and stock as of 2026-11-05

Audiomania expert verdict

Radiotehnika's basic Volna SP2.5 speaker cable: 2 × 2.5 mm² oxygen-free copper on a reel, priced per metre. By rule it is the standard for home systems up to 5 m per channel at 4–8 Ω; buyers praise its flexibility and easy stripping, the one gripe is the thick 8.15 mm jacket. AI draft, under review

Ask about Radiotehnika Volna SP2.5

Will it suit your amplifier or room, what else to buy, what to compare with.

03

In brief

Best if you are looking for:

  • a budget 2.5 mm² speaker cable for most home systems — up to 5 m per channel at 4–8 Ω AI draft, under review
  • DIY termination: soft, flexible, easy to cut and strip, strands do not fray AI draft, under review
  • guitar stacks: tube head and 4–16 Ω cabinet — confirmed by a specialist AI draft, under review
  • long 5–7.5 m runs and hidden routing — a round, mechanically tough cable AI draft, under review
  • for those who do not want to overpay: “compared with pricier ones, noticed no difference” AI draft, under review

Keep in mind:

  • 8.15 mm outer diameter — not every connector fits; Neutrik NP2XL (up to 10 mm) and the Onetech CB01 banana do AI draft, under review
  • thick outer jacket — allow for it in conduit, skirting and under furniture AI draft, under review
  • do not run it parallel to mains wiring (specialist advice) AI draft, under review
  • cut cable cannot be returned or exchanged (item 4 of the RF Government list No. 55) AI draft, under review
04

Product DNA

L055%

A structured sound passport: every value carries a source and a confidence.

Speaker fit
from 2 Ω, up to 400 W; at ≤ 5 m per channelcalculated0.5
Use scenarios
not enough data to calculate
Optimal room area
not enough data to calculate
Tier
entrycalculated0.75
What else you need
calculated1
05

Sound profile

The profile appears after an Audiomania expert audition.

08

Sound character

No audition or professional review yet — below are only facts from the specs and calculations.

09

Use scenarios

Suits:

  • home stereo and cinema with 4–8 Ω speakers up to 5 m per channel AI draft, under review
  • DIY termination for screw terminals or bananas AI draft, under review
  • guitar stacks (head-to-cabinet speaker lead) AI draft, under review
  • long and hidden runs — tough round jacket AI draft, under review

Less suited to:

  • runs beyond 15 m or speakers dipping below 3 Ω — 4 mm² needed AI draft, under review
  • flat routing under skirting — the cable is thick and round AI draft, under review
  • plug-and-play without stripping — take the Volna SP2.5 Banana version AI draft, under review
10

Technologies and construction

  • 99.96 % oxygen-free copper

    What it is: Oxygen-free copper conductors of 99.96 % purity; per the finished version — 140 strands of Ø 0.15 mm per conductor.

    Practical benefit: Low resistance (≈ 0.69 Ω/100 m) and clean strands: “no traces of oxidation on the strands”. AI draft, under review

  • 2 × 2.5 mm² gauge

    What it is: Two 2.5 mm² conductors — the standard gauge for home systems.

    Practical benefit: Up to 5 m per channel at 4–8 Ω without audible loss; 4 mm² for long runs and 4 Ω speakers with dips. AI draft, under review

  • Round, tough Ø 8.15 mm jacket

    What it is: Round cross-section like a power cable; strands separate easily from the jacket (talc-treated per a review).

    Practical benefit: Mechanical toughness when routing and easy stripping; the flip side is thickness. AI draft, under review

  • Sold off the reel, priced per metre

    What it is: Any length in whole metres; Black and White colour variants.

    Practical benefit: Pay only for the length you need; a stereo pair takes 2 × the distance to the speakers. AI draft, under review

12

Which speakers it suits

Speaker fit
from 2 Ω, up to 400 W; at ≤ 5 m per channelcalculated0.5
  • DALI Opticon 2 MK2 bookshelf speakersfits

    118,990 RUB · in stock

    Why

    For 3 m per speaker at 2.4 Ω, 0.86 mm² is enough; the Audiomania standard is 2.5 mm².

  • ELAC Debut B6.3 bookshelf speakersfits

    44,900 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.

  • KEF Q150 bookshelf speakersfits

    29,000 RUB · in stock

    Why

    For 3 m per speaker at 4.8 Ω, 0.43 mm² is enough; the Audiomania standard is 2.5 mm². KEF Q150 has screw terminals: both bananas and bare wire fit.

  • KEF Q750 floorstanding speakersfits

    99,000 RUB · in stock

    Why

    For 3 m per speaker at 4.8 Ω, 0.43 mm² is enough; the Audiomania standard is 2.5 mm². KEF Q750 has screw terminals: both bananas and bare wire fit.

16

Comparison with similar models

  • How it differs from Inakustik Premium LS bulk speaker cable

    Radiotehnika Volna SP2.5 and Inakustik Premium LS are the same tier; they differ in character and in the figures below.

    Full comparison →
17

Specifications

Main

Cable type
Speakerscalculated
Sold as
per metreAudiomania
Gauge
2.5 mm²Audiomania
Geometry
круглый кабель: два проводника в общей круглой оболочкеAudiomania
Resistance per 100 m
0.69 Ω/100 mcalculated
Outer diameter
w: 8.15; h: 8.15Audiomania

Construction

Conductors
count: 2; strands: 140; strand mm: 0.15; material: бескислородная медь 99,96 % (OFC)

Connection

Termination
bare wirecalculated
18

Documents

No documents yet.

19

FAQ

›Will it work as a speaker cable for a 15 W tube guitar head and a 4×12 cabinet (4/16 Ω)?
“Yes, this cable suits your task.” Mind the connectors: at 8.15 mm outer diameter not all fit — e.g. the Neutrik NP2XL jack takes cables up to 10 mm (Audiomania specialist, 2025-08-24).
›Will a 5 m length affect the sound?
“I see no problem, the main thing is that the speaker run does not go parallel to the mains line” (specialist, 2025-08-08). By rule, at 2.5 mm² and 4 Ω losses stay ≤ 5 % up to 14.5 m per channel.
›Which amplifier-side connector does this cable need?
A specialist recommends the Onetech CB01 banana; spades or bare wire also suit screw terminals. Check the connector bore — the cable is thick (8.15 mm).
›Can I solder a guitar (instrument) cable from it?
No: it is an unshielded speaker cable. For instrument cables the specialist recommends Klotz AC104SW or Bespeco B/CV100 — “well shielded”.
›Is 2.5 mm² enough or do I need 4 mm²?
By rule §4.9.15: 2.5 mm² is the standard up to 5 m per channel with speaker minimum impedance ≥ 4 Ω and amplifiers up to 150 W. 4 mm² makes sense beyond 5 m, with speakers dipping below 4 Ω or amplifiers above 150 W.
›How many metres for a stereo pair?
Priced per metre, cut in whole metres. A stereo pair needs 2 × the amplifier-to-speaker distance plus 0.3–0.5 m for termination; keep both channels the same length. AI draft, under review
›Can cut cable be returned?
No: cut cable without material defects cannot be returned or exchanged (item 4 of the list approved by RF Government decree No. 55 of 19.01.1998). You can, however, borrow cables for a home test against a deposit — free of charge.
›Is there a white version?
Yes: the page offers a colour choice; Black and White variants exist (see the discounted off-cuts and the “white speaker cables” tag).
20

Customer reviews

4.9 of 5 · 116 ratings

  • Андрей К., Лосино-Петровский · 2026-09-15Excellentverified purchase

    Хорошее качество, но есть запах.

  • Павел С., Москва · 2026-09-06Excellentverified purchase

    Неплохой кабель, вполне качественная экранировка, удобные и чистые жилы. Взят по рекомендации Александра, без нареканий.

  • Эдуард М., Санкт-Петербург · 2026-07-14verified purchase

    Отлично, но толстоват.

  • Олег П., Калининград · 2026-06-27Excellentverified purchase

    Отличный кабель. Хоть и толстоватый, но эластичный, что очень удобно.

  • Константин Р., Фрязино · 2026-06-27Excellentverified purchase

    Я очень доволен покупкой, спасибо продавцу Алексею Троцкому за подсказку для выбора техники, советую.

  • Игорь Д., Москва · 2026-05-30Excellentverified purchase

    Достоинства: кабель легко режется, очень гибкий, легко прокладывать, жилы не лохматятся и не сыпятся. Недостаток: очень толстая внешняя оплетка, это надо учитывать при планировании прокладки кабеля

  • Василий Н., Иваново · 2026-04-15Excellentverified purchase

    Отличный кабель.

  • Юрий Б., Орёл · 2026-03-18Excellentverified purchase

    Беру не в первый раз, сравнивал с более дорогими, разницы не заметил. Соотношение цена качество на отлично.

+42

21

AI summary of customer reviews

Based on 50 customer reviews.

Most often noted:

  • soft, flexible, easy to cut and strip AI draft, under review
  • value: no audible difference from pricier cables AI draft, under review
  • works interference-free with budget amps and bookshelf speakers AI draft, under review

Sometimes mentioned:

  • the outer jacket is too thick AI draft, under review
  • new-cable smell AI draft, under review
22

Audiomania expert opinion

Volna SP2.5 — один из самых обсуждаемых кабелей в нарезку у Аудиомании: полсотни отзывов сходятся на мягкости, гибкости и чистой разделке, а разницы с более дорогими кабелями многие не слышат. Специалист подтверждает пригодность даже для гитарных кабинетов 4/16 Ом. AI draft, under review[3]

Единственный спорный момент — толщина: круглый кабель Ø 8,15 мм прочен, но требует просторной гофры и подходящих разъёмов. Если нужна плоская скрытая прокладка или сечение 4 мм² для длинных трасс и 4-омной акустики — смотрите Inakustik Premium LS. AI draft, under review[3]