Specification AudioOutputMode : Mono Brand : Rockville BulletPoint1 : Package Includes: (1) Rockville BLUAMP 21 SILVER 2.1 Channel Bluetooth Home Audio Amplifier Receiver. (1) Rockville Mini Wifi Music Player Wireless Audio Streaming Multiroom Stereo Receiver. What's in the Box: Amplifier. RCA Cable. 3.5mm AUX to RCA cable. DC 24V 4A power cable. Bluetooth antenna. Rockville BLUAMP 21 SILVER - 2.1 Channel Bluetooth Amplifier. Will power (4) 8 ohm speakers or (2) 4 ohm speakers or (2) 8 ohm speakers + a passive subwoofer. BulletPoint2 : Bluetooth 5.1 with the latest CSR Bluetooth chip. RCA Aux input. 3.5MM aux input. Sub volume, treble, and master volume control knobs. Peak Power: 2 x 50W @ 4 Ohm full range + 100W @ 4 Ohm for the sub channel. RMS Power @ less than 1 % THD: 2 x 40W @ 4 Ohm full range + 70W @ 4 Ohm for the sub channel. RMS Power @ less than 1 % THD: 2 x 25W @ 8 Ohm full range + 40W @ 8 Ohm for the sub channel. Compact Class D Amplifier. 24V 4A Power Supply BulletPoint3 : (3) sets of gold plated binding post speaker output terminals (2 sets for left and right channels and one set for sub channel). Impedance: 4-8O. THD : 0.03%. S/N Ratio: 103dB. Power Supply DC/ DC: 24V 4A. Extremely good sound quality with balanced sound and low distortion. Strong textured aluminum alloy metal case stays cool and looks really nice. Impact-resistant and high temperature resistant. Silicone anti slip feet. The sub channel has a built in crossover cutoff of 180Hz. Color: Silver BulletPoint4 : Unit weight: 3.1 lbs.. Dimensions: 5.2" x 3.2" x 1.19" (inches). Audio Codec: MP3, AAC, ALAC, APE, FLAC, WAV, WMA, OGG. Wi - Fi: Dual band Wi-Fi supports 802.11 a/b/g/n/ac 2.4 GHz and 5 GHz network. Bluetooth: Bluetooth 5.0, SBC and AAC codec, BT receiver and transmitter (with SW update). Line in: 1 Vrms. Line in to Line out: - Power Output = 2Vrms - THD+N Ratio = 0.009% - SNR = 102dB - Crosstalk = -106 dB - Dynamic Range = 96 dB BulletPoint5 : BT in to Line out: - Power Output = 2 Vrms - THD+N Ratio = 0.009% - SNR = 102 dB - Crosstalk = -106dB - Dynamic Range = 96dB. Line in to SPDIF out: - Power Output = -3dBFS - THD+N Ratio = 0.005% - SNR = 102dB - Crosstalk = -103dB - Dynamic Range = 97dB. BT in to SPDIF out: - Power Output = 0 dBFS - THD+N Ratio = 0.005% - SNR = 297dB - Crosstalk = -364dB - Dynamic Range = 213 dB. Power Supply: 5V,1A. LED: Three color status LED - Red, Green and White. Rockville Mini LED Behaviors Color : Silver CompatibleDevices : Speaker ConnectivityProtocol1 : Wi-Fi ConnectivityProtocol2 : Bluetooth ConnectivityTechnology : Bluetooth ConnectivityTechnology1 : Wi-Fi ConnectivityTechnology2 : Bluetooth ConnectivityTechnology3 : RCA ConnectivityTechnology4 : Auxiliary ConnectivityTechnology5 : Auxiliary ConnectorType1 : USB ConnectorType2 : RCA ConnectorType3 : RCA ControllerType : Button ControlMethod : touch FrequencyResponse : 40 hertz IncludedComponents1 : BLUAMP 21 SILVER IncludedComponents2 : Rockville Wifi Mini IncludedComponents3 : Rockville Wifi Mini IsWaterproof : True ItemName : (1) Rockville BLUAMP 21 Silver 2.1 Channel Bluetooth Home Audio Amplifier Receiver Bundle with (1) Rockville Mini WiFi Music Player Wireless Audio Streaming Multiroom Stereo Receiver (2 Items) ItemPackageDimensions_Height : 2.8 inches ItemPackageDimensions_Length : 10.43 inches ItemPackageDimensions_Width : 8.7 inches ItemPackageQuantity : 1 ItemTypeKeyword : audio-component-receivers Manufacturer : Rockville ModelName : BluTube+HP65S-8+Wiim Mini ModelNumber : BLUAMP 21 SILVER+Wiim Mini MountingType : Tabletop Mount NumberOfItems : 1 OutputPower : 70 watts OutputType : HDMI PartNumber : BLUAMP 21 SILVER+Wiim Mini PowerSourceType : Corded Electric ProductDescription : Button: Capacitive touch - Play/Pause, Volume+, Volume-. Dimensions (L × W × H) : 69 × 69 × 24 mm (2.7 × 2.7 × 0.9 inches). Weight : 40g The BLUAMP 21 is a 2.1 channel home audio receiver/amplifier. It will power 2 or even 4 full range speakers as well as a passive subwoofer. It puts out an incredible 2 x 50w to your full range speakers plus 100w to the subwoofer. This has plenty of power along with balanced and clear sound. The amp is very compact and includes sub volume control, treble tone control, and master volume. ProductSiteLaunchDate : 2023-11-03T11:50:25.132Z SpeakerAmplificationType : Passive SpeakerSize : 6.5 inches SpeakersMaximumOutputPower : 70 watts SpeakerType1 : Outdoor SpeakerType2 : Woofer SupplierDeclaredDgHzRegulation : not_applicable SupportedInternetServices : Spotify SupportedInternetServices1 : Pandora SupportedInternetServices10 : Spotify SupportedInternetServices2 : Spotify SupportedInternetServices3 : Qobuz SupportedInternetServices4 : Amazon Music SupportedInternetServices5 : Deezer SupportedInternetServices6 : Pandora SupportedInternetServices7 : TIDAL SupportedInternetServices8 : Napster SupportedInternetServices9 : TuneIn SurroundSoundChannelConfiguration : 2.1 TunerTechnology : FM TunerTechnology1 : FM TunerTechnology2 : AM UnitCount : 2 UnspscCode : 52161547 WarrantyDescription : 1 Year Wattage : 25 watts WirelessCommunicationTechnology : Bluetooth WirelessCommunicationTechnology1 : Wi-Fi WirelessCommunicationTechnology2 : Bluetooth