{"id":19367,"date":"2018-03-04T18:49:10","date_gmt":"2018-03-04T18:49:10","guid":{"rendered":"https:\/\/audiocentras.lt\/produktas\/audio-system-ad-850-d-car-amplifier\/"},"modified":"2026-09-29T16:03:19","modified_gmt":"2026-09-29T16:03:19","slug":"audio-system-ad-850-d-car-amplifier","status":"publish","type":"product","link":"https:\/\/audiocentras.lt\/en\/produktas\/audio-system-ad-850-d-car-amplifier\/","title":{"rendered":"Audio System AD 850 D Car Amplifier"},"content":{"rendered":"

Audio System AD 850 D<\/strong> is a single-channel car power amplifier designed for a subwoofer. The lowest permitted load impedance<\/strong> is 2 ohms.<\/p>\n

The amplifier is suitable for a system with one subwoofer of a compatible impedance. It can also be used with a multiple-voice-coil subwoofer. In that case, the coil wiring configuration must produce a final load of no less than 2 ohms.<\/p>\n

Power and choosing a suitable load<\/h2>\n

According to the seller\u2019s data, at a 14.4 V supply voltage, the amplifier delivers 500 W RMS<\/strong> into a 4-ohm load. Output increases to 850 W RMS into a 2-ohm load. These figures help you choose a subwoofer based on its rated power and voice-coil wiring.<\/p>\n

Maximum power is listed separately: 1000 W into 4 ohms and 1700 W into 2 ohms. When choosing a subwoofer, the RMS rating is more important than the maximum-power figure. RMS provides a more useful indication of the power relevant to long-term system matching.<\/p>\n

All power figures are specified at 14.4 V<\/strong>. The voltage of the vehicle\u2019s electrical system affects the power that can actually be achieved. You should therefore not expect the same output figures when the supply voltage is lower.<\/p>\n

Matching the signal level<\/h2>\n

Input sensitivity<\/strong> is adjustable from 0.2 to 5 V RMS. This range allows the amplifier to be matched to signals of different levels from a car stereo or audio processor.<\/p>\n

The sensitivity control is not a volume control. Begin with a lower sensitivity setting and adjust it gradually to match the source unit\u2019s output level. Setting it too high can cause signal distortion before the source reaches its full volume.<\/p>\n

Adjusting the bass response<\/h2>\n

The low-pass filter<\/strong> adjustment scale covers 30-150. Its unit is not specified, so assess the setting using the scale and the listening result. The filter helps limit higher frequencies from reaching the subwoofer channel.<\/p>\n

The filter slope is 24 dB per octave<\/strong>. This slope attenuates the signal more strongly beyond the selected cutoff point. Match the initial setting to the vehicle\u2019s main speakers so that their frequency ranges do not overlap unnecessarily.<\/p>\n

Bass boost<\/strong> is adjustable from 0 to 12 dB, with a boost frequency range of 40-100 Hz. It is best to adjust this control only after setting the filter cutoff and input sensitivity.<\/p>\n

Start at the 0 dB position. Increase the boost gradually while listening to a variety of recordings. Excessive boost can overemphasize a narrow frequency region and reduce the overall balance of the system.<\/p>\n

Installation location in the vehicle<\/h2>\n

The 148 \u00d7 52 \u00d7 300 mm dimensions make it possible to plan the required installation area in advance. Leave additional space around the 52 mm-high enclosure for airflow. You should also allow enough room for cable routing and the cables\u2019 bending radius.<\/p>\n

The amplifier weighs 3.80 kg, so it must be secured to a stable surface. Avoid leaving it loose in the luggage compartment or covering the enclosure with carpet. Before drilling, check what is located on the other side of the chosen mounting surface.<\/p>\n

The specified frequency range<\/strong> is 5-500 Hz. Use the integrated filter to limit the band sent to the subwoofer according to the settings of the rest of the audio system.<\/p>\n

Technical specifications<\/h2>\n

The information below is based on the seller\u2019s product description.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Type<\/th>\nCar mono power amplifier<\/td>\n<\/tr>\n
Number of channels<\/th>\n1<\/td>\n<\/tr>\n
RMS power, 4 ohms<\/th>\n500 W \u00d7 1 at 14.4 V<\/td>\n<\/tr>\n
RMS power, 2 ohms<\/th>\n850 W \u00d7 1 at 14.4 V<\/td>\n<\/tr>\n
Maximum power, 4 ohms<\/th>\n1000 W \u00d7 1 at 14.4 V<\/td>\n<\/tr>\n
Maximum power, 2 ohms<\/th>\n1700 W \u00d7 1 at 14.4 V<\/td>\n<\/tr>\n
Minimum load impedance<\/th>\n2 ohms<\/td>\n<\/tr>\n
Frequency range<\/th>\n5-500 Hz<\/td>\n<\/tr>\n
Low-pass filter adjustment range<\/th>\n30-150<\/td>\n<\/tr>\n
Filter slope<\/th>\n24 dB per octave<\/td>\n<\/tr>\n
Bass boost<\/th>\n0-12 dB<\/td>\n<\/tr>\n
Boost frequency range<\/th>\n40-100 Hz<\/td>\n<\/tr>\n
Input sensitivity<\/th>\n0.2-5 V RMS<\/td>\n<\/tr>\n
Dimensions<\/th>\n148 \u00d7 52 \u00d7 300 mm<\/td>\n<\/tr>\n
Weight<\/th>\n3.80 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

FAQ<\/h2>\n

Can the amplifier be connected to a 1-ohm load?<\/h3>\n

No. The load must not be lower than the stated permitted limit. With a multiple-voice-coil subwoofer, the resulting impedance must be calculated according to the selected series or parallel wiring configuration.<\/p>\n

Which power rating should I use when choosing a subwoofer?<\/h3>\n

Match the subwoofer primarily according to its RMS power and final impedance. The maximum-power figure is not a direct indication of suitable continuous loading.<\/p>\n

How should I set the input sensitivity?<\/h3>\n

Set the source unit\u2019s volume below the point at which distortion occurs. Then increase the sensitivity gradually until you achieve the required balance within the system.<\/p>\n

Where should I begin when adjusting the filter?<\/h3>\n

Start in the lower part of the adjustment scale. Then gradually raise the cutoff until the bass blends smoothly with the frequency range reproduced by the main speakers.<\/p>\n

When should I use bass boost?<\/h3>\n

Adjust it only after matching the sensitivity and filter settings. A small increase can add emphasis to the selected region, but the final setting should be evaluated by listening.<\/p>\n

Is this model suitable for a home stereo or cinema system?<\/h3>\n

It is designed for a car audio system, and its power figures are associated with a 14.4 V supply. It is not a home amplifier intended for direct connection to mains electricity.<\/p>\n

Where is the best place to install the amplifier?<\/h3>\n

Choose a solid, dry and uncovered location. Leave enough space for the enclosure, cables and airflow, and plan the mounting points carefully.<\/p>\n","protected":false},"excerpt":{"rendered":"

Audio System AD 850 D<\/strong> is a single-channel mono car amplifier. At 14.4 V, it delivers 500 W RMS into a 4-ohm load or 850 W RMS into a 2-ohm load. An adjustable low-pass filter and 0-12 dB bass boost help match the subwoofer\u2019s operating range to the rest of the car audio system.<\/p>\n","protected":false},"featured_media":19364,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_members_access_role":[],"_members_access_error":""},"product_brand":[],"product_cat":[439,86],"product_tag":[2281,2282,299,2278,2279,2280],"class_list":["post-19367","product","type-product","status-publish","has-post-thumbnail","product_cat-car-audio","product_cat-stiprintuvai","product_tag-2-ohms","product_tag-850-w-rms","product_tag-audio-system","product_tag-car-amplifier","product_tag-mono-amplifier","product_tag-subwoofer-amplifier","first","instock","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"\nAudio System AD 850 D - 850 W at 2 Ohms<\/title>\n<meta name=\"description\" content=\"Audio System AD 850 D mono car amplifier delivering 850 W RMS at 2 ohms and 14.4 V, with an adjustable filter and bass boost.\" \/>\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-ad-850-d-car-amplifier\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Audio System AD 850 D Car Amplifier\" \/>\n<meta property=\"og:description\" content=\"Audio System AD 850 D mono car amplifier delivering 850 W RMS at 2 ohms and 14.4 V, with an adjustable filter and bass boost.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/audiocentras.lt\/en\/produktas\/audio-system-ad-850-d-car-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=\"2026-09-29T16:03:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/audiocentras.lt\/wp-content\/uploads\/2026\/09\/audio-system-ad-850-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"684\" \/>\n\t<meta property=\"og:image:height\" content=\"638\" \/>\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=\"4 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-ad-850-d-car-amplifier\\\/\",\"url\":\"https:\\\/\\\/audiocentras.lt\\\/en\\\/produktas\\\/audio-system-ad-850-d-car-amplifier\\\/\",\"name\":\"Audio System AD 850 D - 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