R1002 Riot Series Car Stereo Amplifier - 200 High Output, 2 Channel, Class A/B, 2/4 Ohm Stable, Low/High Level Inputs, Full Range, Use With Subwoofer

PROS: small footprint, budget friendly, great sound CONS: despite some claims it still requires adequate air flow to remain cool The application is to power an OEM dual coil 7" subwoofer pulled from another car and placed in the trunk of my daily driver sedan. I'm using and aftermarket head end with line-outs for the subwoofer function. I wasn't looking for anything too big as I needed my trunk space, small as it is but adequately insulated, and I didn't need to heard coming a mile away. Installation was a breeze. I did have to drill mounting holes under the deck but then it came together quickly. All connections are pretty straightforward (if you know, you know). I have the head end set to drive the mid-range door speakers directly (4 of them in standard stereo pairs) with a HPF of 83Hz and max 50W per channel. Lower frequencies makes the door metal panels rattle too much. The sub woofer stereo line outs is set with the LPF function to 120Hz and under. Nominal impedance of the dual coil sub is 2 ohms each wired separately for both of the amp's stereo outputs. The woofer along with amp are all in the trunk with enough insulation to prevent car body rattling. The final sound is better than I expected. Tuning wasn't very hard, a little work for the filter settings but the effort is rewarding and really pays off. You couldn't pay an installer to do better than you like to hear it. Despite some claims of being compact enough for fully enclosed installation, I would not recommend it. This unit can still get hot, especially in the summer time, and it needs ambient airflow for cooling. Would definitely need fans for tight spaces. I never got it hot enough to distort in my trunk but YMMV if you're seeking to put this under the seats or in the console.

Fifty quid Kenwood head unit, fifty quid Alpine speakers, fifty quid Boss amp. Combo punches well above its weight. Great for driving a pair of door speakers if you're not too demanding. I'm buying another to put in my van.

Item arrived on-time in excellent condition and works as described by seller if you take a couple of things into consideration. The 200 Watts spec is the combined ( 2 X 100W RMS ) power of both channels with 2 Ohm speakers. The true RMS power of each channel with a 4 Ohm load is 50 Watts per channel. The amp is specified for speakers between 2 -8 Ohms. With 8 Ohm speakers the RMS power of each channel is 25 Watts. The name " 200 Watt Amplifier " sounds big, just remember it depends on whether it's for each channel and the speakers used. If you want to run the amp at the 200 Watt max level into 2 Ohms load per channel you need a 12 Vdc power source with at least 17 Amps available. In a car, as long as you use appropriate gauge wires and in-line fuses, this max current is available from the car battery. If you want to use the amplifier at full power as a stereo inside your home make sure you get an appropriate BIG 12 Vdc @ min 20A power supply running off the 120 Vac line. Having said that, the distortion level of 0,01% and other specs are really very good. This amplifier is capable of excellent sound. Definitely would recommend it to anyone for various applications.

Facil de instalar, cumple con el propósito y muy compacto que era lo qué buscaba. Llego a tiempo

写真に偽りがあります！背面調整部分に偽りがあります！写真ではローパスハイパス振り分けや周波数までいじれるようになってるような写真になってますが実際はボリュームつまみのみです ウーハーに使用するつもりがやむなくスピーカーに使用しました あとノイズがしますがこの会社の出してるノイズキャンセラーを使用すると消えます たまたま別用途で購入していたので使用しましたがそのまま使うとノイズでます 音に関しては可もなく不可もなくといった感じ