{"id":7553,"date":"2019-05-02T19:24:54","date_gmt":"2019-05-02T19:24:54","guid":{"rendered":"https:\/\/www.hometheater.com.br\/portal\/?p=7553"},"modified":"2019-11-25T19:14:59","modified_gmt":"2019-11-25T21:14:59","slug":"caixas-polk-audio-signature-bookshelves-com-som-de-gente-grande","status":"publish","type":"post","link":"https:\/\/www.hometheater.com.br\/portal\/2019\/05\/02\/caixas-polk-audio-signature-bookshelves-com-som-de-gente-grande\/","title":{"rendered":"Caixas Polk Audio Signature: bookshelves com som de gente grande"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-7557\" src=\"https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/polk_conjuntos.jpg\" alt=\"\" width=\"800\" height=\"384\" srcset=\"https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/polk_conjuntos.jpg 800w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/polk_conjuntos-400x192.jpg 400w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/polk_conjuntos-500x240.jpg 500w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/polk_conjuntos-300x144.jpg 300w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/polk_conjuntos-768x369.jpg 768w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/polk_conjuntos-600x288.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<a href=\"#\" target=\"_self\" class=\"buttons btn_blue left\"><span class=\"left\">Por Alex dos Santos<\/span><\/a>\n<p>A Polk Audio, adquirida em 2017 pelo grupo californiano Sound United, que det\u00e9m marcas como Denon e Marantz, sempre foi reconhecida pelas caixas ac\u00fasticas de bom custo-benef\u00edcio. A s\u00e9rie Signature, intermedi\u00e1ria dentro do seu ecl\u00e9tico portf\u00f3lio, parece n\u00e3o fugir \u00e0 regra. O conjunto para 5.1 canais que recebemos para teste chama a aten\u00e7\u00e3o pela apar\u00eancia arrojada, ou como se apresenta o fabricante: \u201cno real estilo HiFi americano\u201d.<\/p>\n<h2><strong>Design<\/strong><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-7558\" src=\"https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/polk_design.jpg\" alt=\"\" width=\"800\" height=\"571\" srcset=\"https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/polk_design.jpg 800w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/polk_design-400x286.jpg 400w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/polk_design-500x357.jpg 500w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/polk_design-300x214.jpg 300w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/polk_design-768x548.jpg 768w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/polk_design-600x428.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>O ambiente de 20m2 parecia pequeno para as bookshelves S20 como frontais, as S15 como surrounds, a central S30 e o subwoofer HTS10. A linha \u00e9 formada por mais tr\u00eas torres, uma bookshelf ainda menor e mais uma central. Todas as caixas t\u00eam extremidades curvas e baffle com painel black piano pensado para destacar os drivers de cones prateados, no caso do midbass personalizado com uma sutil descri\u00e7\u00e3o \u00e0 s\u00e9rie Signature.<\/p><div class=\"homet-conteudo\" style=\"text-align: center;\" id=\"homet-3363421025\"><div data-cfpa=\"35734\" data-cfpw=\"35734\" id=\"homet-3203018696\"><a data-no-instant=\"1\" href=\"https:\/\/www.harmanluxuryaudio.com\/\" rel=\"noopener\" class=\"a2t-link\" aria-label=\"ARCAM-SA45-BANNER-NEWSLETTER\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2025\/09\/ARCAM-SA45-BANNER-NEWSLETTER.gif\" alt=\"\"  class=\"no-lazyload\" width=\"300\" height=\"250\"   \/><\/a><\/div><h6><span style=\"color: #808080;\"><em>Publicidade<\/em><\/span><\/h6>\r\n<\/br><script type=\"text\/javascript\">;new advadsCfpAd( 35734 );<\/script><\/div>\n<p>Como n\u00e3o havia crian\u00e7as por perto, preferimos n\u00e3o usar a tela de prote\u00e7\u00e3o dos falantes com seus guias magn\u00e9ticos (exceto o subwoofer) que acompanha cada modelo. O gabinete das S20 traz tweeter domo de teryleno, fibra sint\u00e9tica de poli\u00e9ster leve e resistente, que visa estender agudos at\u00e9 40kHz. O woofer de 6,5\u201d projetado com cer\u00e2mica, bobina de quatro camadas e cone em polipropileno refor\u00e7ado por borracha but\u00edlica.<\/p>\n<p>Mais compactas, as S15 usam configura\u00e7\u00e3o semelhante \u00e0s S20, embora com midbass de 5,25\u201d. Comum em qualquer modelo surround, um pequeno orif\u00edcio traseiro facilita a instala\u00e7\u00e3o na parede. O mesmo driver de 5,25\u201d est\u00e1 presente em dobro na S30, com 51cm de largura, para ampliar a dispers\u00e3o horizontal a um maior n\u00famero de assentos na sala. Toda a linha est\u00e1 dispon\u00edvel nos acabamentos grafite fosco vin\u00edlico e nogueira americana (walnut).<strong>\u00a0<\/strong><\/p>\n<h2><strong>Subwoofer robusto<\/strong><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-7559\" src=\"https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/subwoofer_polk.jpg\" alt=\"\" width=\"500\" height=\"450\" srcset=\"https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/subwoofer_polk.jpg 500w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/subwoofer_polk-400x360.jpg 400w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/subwoofer_polk-300x270.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>Se h\u00e1 uma caixa que n\u00e3o d\u00e1 para considerar compacta neste conjunto \u00e9 o subwoofer HTS10. Apesar de ostentar somente um front-firing de 10\u201d, em meio a uma bela moldura piano black, esse sub tem 42cm de altura. Sua constru\u00e7\u00e3o em MDF envolve bra\u00e7os adicionais, painel frontal espesso e cantos curvos. Tudo para manter a estrutura acusticamente inerte e reduzir ondas internas, que prejudicam a defini\u00e7\u00e3o sonora.<\/p>\n<p>O volumoso gabinete tem um prop\u00f3sito, conforme veremos a seguir, e um deles \u00e9 abrigar o amplificador Classe D de 100W RMS cont\u00ednuos (200W de pico). Na parte posterior, bot\u00f5es de volume, crossover ou passa baixa (40 a 160Hz), fase (0\/180\u00ba), liga\u00e7\u00e3o autom\u00e1tica (Power Auto), al\u00e9m de entradas RCA est\u00e9reo e mono (LFE) e trigger, para ativa\u00e7\u00e3o por corrente (12V).<\/p>\n<h2><strong>Tecnologias<\/strong><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-7560\" src=\"https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/tecnologia_polk.jpg\" alt=\"\" width=\"800\" height=\"392\" srcset=\"https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/tecnologia_polk.jpg 800w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/tecnologia_polk-400x196.jpg 400w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/tecnologia_polk-500x245.jpg 500w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/tecnologia_polk-300x147.jpg 300w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/tecnologia_polk-768x376.jpg 768w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/tecnologia_polk-600x294.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>Cada driver \u00e9 desenvolvido com a tecnologia Dynamic Balance, que faz uso de computadores e equipamentos de testes a laser na an\u00e1lise de todo o projeto eletroac\u00fastico e mec\u00e2nico. Visa identificar e erradicar os elementos que reduzem o desempenho. A ideia \u00e9 garantir n\u00e3o s\u00f3 maior durabilidade com o uso dos materiais envolvidos, como melhor linearidade de frequ\u00eancias, alta efici\u00eancia e baixa distor\u00e7\u00e3o.<\/p>\n<p>Outra patente da Polk \u00e9 a Power Port, vis\u00edvel na forma de \u201carmadura\u201d fixada na traseira das caixas. No subwoofer, essa estrutura abrange toda a parte inferior e serve como base para o gabinete. No interior dessa pe\u00e7a de pl\u00e1stico r\u00edgido, h\u00e1 uma esp\u00e9cie de cone invertido posicionado exatamente na boca do duto de ar. Objetivo: reduzir em at\u00e9 3dB as famigeradas turbul\u00eancias, que geram perdas de energia, ru\u00eddos e distor\u00e7\u00f5es.<\/p>\n<h2><strong>Avalia\u00e7\u00e3o<\/strong><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-7561\" src=\"https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/avaliacao_rotativa.jpg\" alt=\"\" width=\"800\" height=\"417\" srcset=\"https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/avaliacao_rotativa.jpg 800w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/avaliacao_rotativa-400x209.jpg 400w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/avaliacao_rotativa-500x261.jpg 500w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/avaliacao_rotativa-300x156.jpg 300w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/avaliacao_rotativa-768x400.jpg 768w, https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2019\/05\/avaliacao_rotativa-600x313.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>Caixas bookshelves de boa sensibilidade podem tocar bem at\u00e9 com receivers de baixa pot\u00eancia. Conectamos o conjunto a um aparelho de 95W por canal e logo ficou clara a necessidade de limitar o controle de volume a 80%. Foi o m\u00e1ximo para suportar, sem estresse auditivo, a trilha Dolby TrueHD\/Atmos de <strong>Miss\u00e3o Imposs\u00edvel: Efeito Fallout<\/strong>, em especial a partir dos 53\u00b4 nas longas cenas de persegui\u00e7\u00e3o pelas ruas de Paris. A press\u00e3o sonora e a for\u00e7a dos graves se semelhavam ao de um sistema com caixas torres.<\/p>\n<p>O subwoofer, evidente, era o grande respons\u00e1vel pelas extens\u00e3o e profundidade de graves. Por\u00e9m, sequer foi preciso ultrapassar os 50% no controle de volume do seu amplificador. As frontais S20 e a central S30 respondiam de maneira surpreendente batidas de carros, tiros e explos\u00f5es. Para fechar a maratona com Tom Cruise, vimos <strong>Jack Reacher: Sem Retorno<\/strong>. A trilha DTS-HD MA bem mais calma, com muitos di\u00e1logos e efeitos surrounds sutis, nos permitiu conhecer mais virtudes do conjunto.<\/p>\n<p>A S30 foi capaz de revelar sussurros e falas com clareza, ao mesmo tempo em que as S15 reproduziam toda a ambienta\u00e7\u00e3o das cenas com naturalidade e realismo. A qualidade t\u00edmbrica do conjunto Signature ainda se tornaria evidente nas audi\u00e7\u00f5es musicais, tanto em dois canais quanto em multicanal (modo 5CH), conforme constatado com o \u00e1lbum <strong>What a Difference a Day Makes<\/strong>, de Ingram Washington (FLAC). Com ou sem subwoofer, o baixo ac\u00fastico estava sempre presente, assim como a voz grave do cantor americano.<\/p>\n<p>J\u00e1 em est\u00e9reo, as S20 tamb\u00e9m mereceram elogios pelo bom detalhamento nas m\u00e9dias e altas frequ\u00eancias. Agora nos vocais femininos, como os de Melody Gardot (<strong>My One and Only Thrill<\/strong>\/FLAC) e Susan Wong (<strong>Close to You<\/strong>\/DSD), acompanhados de instrumentos el\u00e9tricos e ac\u00fasticos, somente as notas realmente mais altas n\u00e3o foram t\u00e3o limpas e cristalinas quando comparadas \u00e0s bookshelves de refer\u00eancias (B&amp;W CM5 S2), relativamente mais caras, de nossa sala. Isso, no entanto, n\u00e3o nos impediu de desfrutar de composi\u00e7\u00f5es de Chopin, na playlist<a href=\"https:\/\/listen.tidal.com\/playlist\/9f8671c0-8e62-4dbd-8131-0d55ab0dde51\"><strong> <em>Tidal Masters: Deutsche Grammophon 120<\/em>, com marcante palco sonoro<\/strong>.<\/a><\/p>\n<h4><span style=\"text-decoration: underline;\">Ficha t\u00e9cnica<\/span><\/h4>\n<table style=\"border: none;\" cellspacing=\"0\" cellpadding=\"0\" class=\"mtr-table mtr-tr-td\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" bgcolor=\"#CCCCCC\" width=\"183\" data-mtr-content=\"\nModelo*\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h4>Modelo*<\/h4>\n<\/div><\/td>\n<td style=\"text-align: center;\" bgcolor=\"#CCCCCC\" width=\"104\" data-mtr-content=\"\nS20\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h4>S20<\/h4>\n<\/div><\/td>\n<td style=\"text-align: center;\" bgcolor=\"#CCCCCC\" width=\"104\" data-mtr-content=\"\nS30 (central)\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h4>S30 (central)<\/h4>\n<\/div><\/td>\n<td style=\"text-align: center;\" bgcolor=\"#CCCCCC\" width=\"118\" data-mtr-content=\"\nS15\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h4>S15<\/h4>\n<\/div><\/td>\n<\/tr>\n<tr>\n<td data-mtr-content=\"\nModelo*\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\"><\/div><\/td>\n<td data-mtr-content=\"\nS20\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\"><\/div><\/td>\n<td data-mtr-content=\"\nS30 (central)\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\"><\/div><\/td>\n<td data-mtr-content=\"\nS15\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\"><\/div><\/td>\n<\/tr>\n<tr>\n<td data-mtr-content=\"\nModelo*\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>Amplifica\u00e7\u00e3o recomendada<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" data-mtr-content=\"\nS20\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>125W<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" data-mtr-content=\"\nS30 (central)\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>125W<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" data-mtr-content=\"\nS15\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>100W<\/h5>\n<\/div><\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#CCCCCC\" data-mtr-content=\"\nModelo*\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>Sensibilidade<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" bgcolor=\"#CCCCCC\" data-mtr-content=\"\nS20\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>88dB<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" bgcolor=\"#CCCCCC\" data-mtr-content=\"\nS30 (central)\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>89dB<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" bgcolor=\"#CCCCCC\" data-mtr-content=\"\nS15\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>88dB<\/h5>\n<\/div><\/td>\n<\/tr>\n<tr>\n<td data-mtr-content=\"\nModelo*\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>Resposta de frequ\u00eancia<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" data-mtr-content=\"\nS20\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>39Hz\u201340kHz<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" data-mtr-content=\"\nS30 (central)\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>42Hz\u201340kHz<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" data-mtr-content=\"\nS15\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>50Hz\u201340kHz<\/h5>\n<\/div><\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#CCCCCC\" data-mtr-content=\"\nModelo*\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>Dimens\u00f5es (L x A x P)<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" bgcolor=\"#CCCCCC\" data-mtr-content=\"\nS20\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>21 x 37 x 35cm<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" bgcolor=\"#CCCCCC\" data-mtr-content=\"\nS30 (central)\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>50 x 19 x 27cm<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" bgcolor=\"#CCCCCC\" data-mtr-content=\"\nS15\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>19 x 30 x 26cm<\/h5>\n<\/div><\/td>\n<\/tr>\n<tr>\n<td data-mtr-content=\"\nModelo*\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>Pre\u00e7o sugerido R$**<\/h5>\n<\/div><\/td>\n<td data-mtr-content=\"\nS20\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>3.119<\/h5>\n<\/div><\/td>\n<td data-mtr-content=\"\nS30 (central)\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>2.649<\/h5>\n<\/div><\/td>\n<td data-mtr-content=\"\nS15\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>2.899<\/h5>\n<\/div><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<table style=\"border: none;\" cellspacing=\"0\" cellpadding=\"0\" class=\"mtr-table mtr-tr-td\">\n<tbody>\n<tr>\n<td bgcolor=\"#CCCCCC\" width=\"187\" data-mtr-content=\"\nSubwoofer HTS10\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h4>Subwoofer HTS10<\/h4>\n<\/div><\/td>\n<td bgcolor=\"#CCCCCC\" width=\"303\" data-mtr-content=\"\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\"><\/div><\/td>\n<\/tr>\n<tr>\n<td data-mtr-content=\"\nSubwoofer HTS10\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\"><\/div><\/td>\n<td data-mtr-content=\"\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\"><\/div><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" data-mtr-content=\"\nSubwoofer HTS10\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>Woofer<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" data-mtr-content=\"\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>10\u201d<\/h5>\n<\/div><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" bgcolor=\"#CCCCCC\" data-mtr-content=\"\nSubwoofer HTS10\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>Pot\u00eancia<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" bgcolor=\"#CCCCCC\" data-mtr-content=\"\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>100W RMS Cont\u00ednuos \/ 200W de pico<\/h5>\n<\/div><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" data-mtr-content=\"\nSubwoofer HTS10\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>Resposta de frequ\u00eancia<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" data-mtr-content=\"\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>30\u2013120Hz (-3dB) \/ 25\u2013180Hz (geral)<\/h5>\n<\/div><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" bgcolor=\"#CCCCCC\" data-mtr-content=\"\nSubwoofer HTS10\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>Dimens\u00f5es (L x A x P)<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" bgcolor=\"#CCCCCC\" data-mtr-content=\"\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>38 x 42 x 41cm<\/h5>\n<\/div><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" data-mtr-content=\"\nSubwoofer HTS10\n\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>Pre\u00e7o sugerido:<\/h5>\n<\/div><\/td>\n<td style=\"text-align: center;\" data-mtr-content=\"\" class=\"mtr-td-tag\"><div class=\"mtr-cell-content\">\n<h5>R$ 3.949<\/h5>\n<\/div><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><strong>Garantia:<\/strong> 5 anos (3 anos para o amplificador do sub)<br \/>\n<strong>Distribuidor:<\/strong> <a href=\"http:\/\/www.Disac.com.br\">www.Disac.com.br<\/a><br \/>\n<strong>Fabricante:<\/strong> <a href=\"http:\/\/www.PolkAudio.com\">www.PolkAudio.com<\/a><\/p>\n<p><em><strong>*<\/strong> Todos os modelos possuem imped\u00e2ncia de 8 ohms.<\/em><br \/>\n<em><strong>**<\/strong> Pre\u00e7os sugeridos informados no m\u00eas de dezembro de 2018; \u00e9 poss\u00edvel encontrar varia\u00e7\u00f5es para baixo e para cima. Adquira de revenda oficial com nota fiscal, garantia e suporte t\u00e9cnico do representante oficial no Brasil.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A Polk Audio, adquirida em 2017 pelo grupo californiano Sound United, que det\u00e9m marcas como Denon e Marantz, sempre foi reconhecida pelas caixas ac\u00fasticas de<\/p>\n","protected":false},"author":1,"featured_media":7562,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-7553","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-testes"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Caixas Polk Audio Signature: bookshelves com som de gente grande - HT &amp; Casa Digital<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.hometheater.com.br\/portal\/2019\/05\/02\/caixas-polk-audio-signature-bookshelves-com-som-de-gente-grande\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Caixas Polk Audio Signature: bookshelves com som de gente grande - HT &amp; 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