Helos 20

Suono stereo ad alte prestazioni da un singolo altoparlante da incasso

Imaging realistico grazie a un altoparlante da soffitto molto compatto e ad alte prestazioni progettato per l'uso stereo o mono.

Helos 20 offre audio stereo da un singolo altoparlante, ideale per l'uso in stanze di piccole dimensioni come bagni, piccoli uffici, ingressi e cucine. Helos 20 è anche un ponte per fornire una riproduzione audio mono con ampia dispersione. Fornire qualità e prestazioni leggendarie MartinLogan in un altoparlante da soffitto compatto ad alta risoluzione. Dotato di due tweeter a cupola morbida al neodimio da 0,75 pollici, woofer con cono in alluminio ad alta rigidità e topologia di crossover Vojtko proprietaria, Helos 20 fornisce senza sforzo immagini solide con estrema precisione sonora.

Launched in 2008

Price when discontinued:
399,00 USD



Le specifiche sono soggette a modifiche senza preavviso

Risposta in frequenza

47-20.000 Hz ± 3dB


Stelo Tweeter girevole

Potenza amplificatore consigliata

20-200 watt per canale

Amplificatore consigliato Potenza (Stereo)

20 watt × 20 watt - 100 watt × 100 watt


89 dB / 2,83 volt / metro


Mono: 4 ohm. Stereo: 8 ohm × 8 ohm. Compatibile con amplificatori da 4, 6 o 8 Ohm.

Frequenza di crossover

2600 Hz

Trasduttore ad alta frequenza

Due tweeter a cupola morbida al neodimio da 1,9 "(1,9 cm)

Trasduttore a bassa frequenza

Cestello in ghisa da 16,5 cm (6.5 "), coni di alluminio ad alta rigidità con gruppo di trasmissione a lancio esteso, protezione termica


Bobine di nucleo aria, condensatori in poliestere


Post di binding stereo (bridge per mono)


4,5 libbre. (2 kg)

Apertura parete richiesta (include tolleranza)

8,35 "× 8,35"
(21,2 cm × 21,2 cm)

Proiezione dalla superficie della parete

0,37 "(1 cm)

Profondità dietro la superficie della parete

5 "(12,7 cm)

recensioni dei clienti Per Helos 20

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  • giovedì 25 febbraio 2010

Helos Better than expected
I bought 5 of the Helo 20s online for a pretty good price, I have used another top of the line brand for the speakers in my other room but after installing these for the first time I was very impressed and surprised at how crisp and clean the sound was from them as well as the much better improvement from the speakers that I have in the other room.. thanks a lot

Jitendra K.

  • giovedì 21 gennaio 2010

Very nice sound quality with good bass with moderate price
Initially I plan to buy bose 191 speakers but I saw Helos 20 has 80% of the price on amazon on X'mas day so i rush to local magnolia center of Bestbuy to listen the sound quality but i was unlucky b'cos they don't have setup for helos 20, so i was little upset and was confused too b'cos i dont know what to do but suddenly what happen to me that i placed order on amazon for 10 In-ceiling Helos 20 speaker. After placing order went to martinlogan website to check for authorized dealer and found fry's so rush to their place and listen the sound quality which was way better than bose and better bass compare to bose 191 in-ceiling speaker. I took an deep breath thinking that all my investment and decision is worth selecting helos 20. On Jan 6 2010, all of my speakers and onkyo HT-RC180 arrived and it took me one week to put 6 speaker into ceiling and guest what on friday night after everything was ready and configured with onkyo receiver, I just turn on the FM and boom......great sound quality and enjoy blu-ray movies with THX, Dolby, etc sound with my onkyo receiver. Now i'm adding two more helos 20 speaker for sourrond back left/right and also planning to buy center channel and sub-woofer speaker from Marting logan itself. Finally, I would definitely recommend to buy this speaker but before that listen and decide because everybody has their own view and ear too. All the best for your shopping.....!!!!