{"id":21930,"date":"2021-11-02T21:59:42","date_gmt":"2021-11-02T21:59:42","guid":{"rendered":"https:\/\/audiocentras.lt\/produktas\/audio-system-as-300-2-car-audio-power-amplifier\/"},"modified":"2026-09-29T18:36:35","modified_gmt":"2026-09-29T18:36:35","slug":"audio-system-as-300-2-car-audio-power-amplifier","status":"publish","type":"product","link":"https:\/\/audiocentras.lt\/en\/produktas\/audio-system-as-300-2-car-audio-power-amplifier\/","title":{"rendered":"Audio System AS 300.2 Car Audio Power Amplifier"},"content":{"rendered":"

Audio System AS 300.2<\/strong> is a two-channel car audio power amplifier designed for in-car sound systems. It accepts a signal from a factory head unit or a source equipped with RCA outputs. Its different power ratings apply to specific loads, so speaker impedance is an important consideration when selecting system components.<\/p>\n

What this amplifier is designed for<\/h2>\n

The full-range Class A\/B<\/strong> design can amplify the complete audio signal or limit selected frequencies using the integrated filters. Its two-channel configuration suits systems that need to power two speakers or two speaker circuits with impedance matching the amplifier requirements.<\/p>\n

A single-channel power rating is also specified, but this connection requires a 4-ohm load<\/strong>. Choose the wiring configuration according to the intended number of speakers, their impedance and their permitted power handling.<\/p>\n

Two signal connection options<\/h2>\n

With a factory head unit, you can use the high-level input<\/strong>. This carries the signal when the head unit does not have low-level preamp outputs.<\/p>\n

If your source has RCA outputs, use the low-level RCA input<\/strong>. This is the conventional connection method when replacing the head unit or using another compatible signal source.<\/p>\n

A remote controller with a 5-metre cable<\/strong> is included. The cable is long enough to route the controller from the amplifier to a conveniently accessible position in the passenger compartment.<\/p>\n

Adjusting the filters and bass boost<\/h2>\n

The low-pass filter<\/strong> is adjustable from 40 to 4000 Hz and attenuates the higher part of the signal. The high-pass filter<\/strong> is adjustable from 15 to 500 Hz and reduces the lower-frequency content.<\/p>\n

Select each crossover point according to the purpose of the connected speakers. Begin with a moderate setting and then make adjustments in small steps. Evaluate the result from your normal listening position inside the vehicle.<\/p>\n

The bass boost<\/strong> can be adjusted from 0 to 12 dB. Set it to 0 dB initially. Increase the boost only after adjusting the filters and balancing the overall system volume.<\/p>\n

Power and load<\/h2>\n

With a 4-ohm load<\/strong>, the stated output is 300 W RMS per channel. With a 2-ohm load<\/strong>, it reaches 600 W RMS per channel. The 600 W figure therefore applies only to the specified 2-ohm load.<\/p>\n

Single-channel output is stated as 1300 W RMS at 4 ohms<\/strong>. When choosing speakers, consider their impedance and permitted power handling rather than focusing only on the amplifier\u2019s highest figure.<\/p>\n

Planning the installation location<\/h2>\n

The amplifier measures 43 \u00d7 18.5 \u00d7 5.1 cm<\/strong>. Measure the intended installation area before fitting it and allow room for cables and connections. Secure the housing firmly and do not cover it in a way that prevents air from circulating around it.<\/p>\n

Plan the controller cable route before permanently securing the amplifier. This helps avoid an unnecessarily short route, sharp cable bends and an inconvenient controller position.<\/p>\n

Technical specifications<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Type<\/strong><\/td>\nTwo-channel car audio power amplifier<\/td>\n<\/tr>\n
Operation<\/strong><\/td>\nFull-range Class A\/B<\/td>\n<\/tr>\n
High-level input<\/strong><\/td>\nFor a factory-type head unit without preamp outputs<\/td>\n<\/tr>\n
Low-level input<\/strong><\/td>\nRCA<\/td>\n<\/tr>\n
Low-pass filter<\/strong><\/td>\n40-4000 Hz<\/td>\n<\/tr>\n
High-pass filter<\/strong><\/td>\n15-500 Hz<\/td>\n<\/tr>\n
Bass boost<\/strong><\/td>\n0-12 dB<\/td>\n<\/tr>\n
Power at 4 ohms<\/strong><\/td>\n300 W RMS \u00d7 2<\/td>\n<\/tr>\n
Power at 2 ohms<\/strong><\/td>\n600 W RMS \u00d7 2<\/td>\n<\/tr>\n
Single-channel power at 4 ohms<\/strong><\/td>\n1300 W RMS \u00d7 1<\/td>\n<\/tr>\n
Dimensions<\/strong><\/td>\n43 \u00d7 18.5 \u00d7 5.1 cm<\/td>\n<\/tr>\n
Included<\/strong><\/td>\nRemote controller with a 5-metre cable<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

FAQ<\/h2>\n

Do I need to replace the factory head unit?<\/h3>\n

No, provided that the head unit can supply a speaker-level signal. In that case, RCA preamp outputs are not required.<\/p>\n

How do I choose the correct speaker impedance?<\/h3>\n

Impedance is directly related to the power delivered by the amplifier. Your chosen wiring configuration must match the specified 2-ohm or 4-ohm load.<\/p>\n

How should I begin adjusting the filters?<\/h3>\n

Use the low-pass filter to attenuate the higher part of the signal and the high-pass filter to reduce the lower-frequency content.<\/p>\n

Where should I install the amplifier in the car?<\/h3>\n

Check that there is enough room for the 43 \u00d7 18.5 \u00d7 5.1 cm housing, that the connections remain accessible and that the 5-metre controller cable can be routed safely to the chosen position in the passenger compartment.<\/p>\n","protected":false},"excerpt":{"rendered":"

Audio System AS 300.2 is a two-channel car audio power amplifier designed for in-car sound systems. Its high-level input allows connection to a factory head unit without RCA outputs, while the RCA input accepts a conventional low-level signal. Output is rated at 300 W RMS \u00d7 2 at 4 ohms or 600 W RMS \u00d7 2 at 2 ohms. A remote controller with a 5-metre cable is included.<\/p>\n","protected":false},"featured_media":21914,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_members_access_role":[],"_members_access_error":""},"product_brand":[],"product_cat":[439,86],"product_tag":[2695,299,2278,897,2090,2700,1676,2187],"class_list":["post-21930","product","type-product","status-publish","has-post-thumbnail","product_cat-car-audio","product_cat-stiprintuvai","product_tag-as-300-2","product_tag-audio-system","product_tag-car-amplifier","product_tag-car-audio","product_tag-class-a-b","product_tag-high-level-input","product_tag-rca-input","product_tag-two-channel-amplifier","first","instock","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"\nAudio System AS 300.2 Amplifier - 2-Channel<\/title>\n<meta name=\"description\" content=\"Audio System AS 300.2 amplifier with high-level and RCA inputs, 300 W RMS \u00d7 2 at 4 ohms, remote controller and adjustable filters.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/audiocentras.lt\/en\/produktas\/audio-system-as-300-2-car-audio-power-amplifier\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Audio System AS 300.2 Car Audio Power Amplifier\" \/>\n<meta property=\"og:description\" content=\"Audio System AS 300.2 amplifier with high-level and RCA inputs, 300 W RMS \u00d7 2 at 4 ohms, remote controller and adjustable filters.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/audiocentras.lt\/en\/produktas\/audio-system-as-300-2-car-audio-power-amplifier\/\" \/>\n<meta property=\"og:site_name\" content=\"audio centras\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Audiocentras\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-29T18:36:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/audiocentras.lt\/wp-content\/uploads\/2026\/09\/audio-system-as-480-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1100\" \/>\n\t<meta property=\"og:image:height\" content=\"1422\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/audiocentras.lt\\\/en\\\/produktas\\\/audio-system-as-300-2-car-audio-power-amplifier\\\/\",\"url\":\"https:\\\/\\\/audiocentras.lt\\\/en\\\/produktas\\\/audio-system-as-300-2-car-audio-power-amplifier\\\/\",\"name\":\"Audio System AS 300.2 Amplifier - 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