Helos 20

Sonido estéreo de alto rendimiento desde un solo altavoz en el techo

Imágenes realistas de un altavoz de techo muy compacto, de alto rendimiento, diseñado para uso estéreo o mono.

Helos 20 ofrece sonido estéreo desde un solo altavoz, ideal para usar en habitaciones pequeñas como baños, oficinas pequeñas, entradas y cocinas. Helos 20 también se une para ofrecer una reproducción de sonido mono con gran dispersión. Ofrece la calidad y el rendimiento legendarios de MartinLogan en un altavoz de techo compacto de alta resolución. Con dos tweeters de cúpula blanda de neodimio de 0.75 pulgadas, un woofer de cono de aluminio de alta rigidez y una topología de cruce Vojtko patentada, Helos 20 ofrece sin esfuerzo imágenes de alta calidad con extrema precisión sonora.

Launched in 2008

Price when discontinued:
399,00 US$



Las especificaciones están sujetas a cambios sin previo aviso

Respuesta frecuente

47–20,000 Hz ± 3dB


Vástago tweeter pivotante

Potencia recomendada del amplificador

20‒200 vatios por canal

Potencia recomendada del amplificador (estéreo)

20 vatios x 20 vatios - 100 vatios x 100 vatios


89 dB / 2.83 voltios / metro


Mono: 4 ohmios. Estéreo: 8 ohmios × 8 ohmios. Compatible con amplificadores de 4, 6 u 8 ohmios.

Frecuencia de cruce

2600 Hz

Transductor de alta frecuencia

Dos tweeters de cúpula blanda de neodimio de 0.75 "(1.9 cm)

Transductor de baja frecuencia

Cesto fundido de 6.5 "(16.5 cm), conos de aluminio de alta rigidez con ensamble de transmisión de tiro extendido, protección térmica


Bobinas de núcleo de aire, condensadores de poliéster


Postes de encuadernación estéreo (puente para mono)


4.5 lbs. (2 kg)

Abertura de pared requerida (incluye tolerancia)

8.35 "× 8.35"
(21.2cm × 21.2cm)

Proyección desde la superficie de la pared

0.37 "(1cm)

Profundidad detrás de la superficie de la pared

5 "(12.7cm)

Valoración de los clientes por Helos 20

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  • jueves, 25 de febrero de 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.

  • jueves, 21 de enero de 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.....!!!!