ARTSOUND AV-339FM Mini Amplifier 2xMic Karaoke With FM, SD USB 2x20W RMS

Τi 60 tube
Integrated tube amp.Four line inputs.
2X12AU7, 4x EL34, 1x12AX7
35 Wrms per chan.4-8 ohm.
Class AB push-pull
Remote control included.

Audioengine N22 General Specifications
Type: Compact Integrated Stereo Amplifier Power Output: 80W peak total (22W RMS/40W peak per channel), AES Amplifier type: Dual Class A/B Voltages: 110-240V, 50/60Hz auto-switching for worldwide voltages Inputs: RCA and 1/8" (3.5mm) mini-jack Outputs: RCA variable preamp Speaker outputs: 5-way binding posts SNR: >95dB A-weighted THD+N:

Yamaha RN402D MusicCast Enabled Network Receiver.

The R-N402D is a receiver and network audio player in a single unit. You can use it to easily play audio sources downloaded from the Internet and stored on a PC or NAS system. Or, enjoy streaming music services and internet radio (with vTuner). Moreover, Yamahaʼs original MusicCast App allows you to enjoy your favourite tunes on a smartphone or tablet device via wireless connection.

With a beautifully simple and unique design inherited directly from Yamahaʼs HiFi audio components, the R-N402D also boasts an easy-to-operate button layout. The aluminium front panel has a richly textured silver hairline finish. The control knobs are also of the same luxurious construction as used on our top-end models. Both inside and out, everything about the R-N402D demonstrates our commitment to superior design and operability.

MusicCast is a new revolution in network audio, use all your MusicCast products together or separately, itʼs completely up to you. Control it, all from one app, designed to be intuitive, quick and simple to use. Use a soundbar, a wireless speaker, an AV receiver, Hi-Fi audio whichever suits you best, mix and match then expand your MusicCast system as time goes on. All new from Yamaha, the MusicCast system brings everything to everywhere for everyone.

MusicCast employs a high performance wireless network to deliver music and audio enjoyment. It can stream digital music content from your smartphone, PC or NAS to other MusicCast devices in your home. It can also share the music from external devices such as a CD player or TV connected to the R-N402D. Audio content from Bluetooth-connected smartphones or tablets can also be streamed to MusicCast devices in multiple rooms.

You can hear all the music sources on the R-N402D from your smartphone via wireless Bluetooth or AirPlay connection. You can play music from music apps, radio apps, or YouTube™-type video hosting services.

DAB and DAB+ are Digital Audio Broadcasting formats that offer a large selection of radio stations with high sound quality. Other benefits include automatic tuning to available stations with a list to choose from, and display of information such as station name. You can preset 40 DAB / DAB+ stations.
USB Digital Connection for USB Flash Drives on the Front Panel

The R-N402D provides a USB port on the front panel for quick connection of USB flash drives. You have instant access to all your stored music, and the digital connection ensures that you hear it with the highest possible sound quality.
Gapless Playback Compatibility

Many live and classical albums have no gaps in the music. Gapless playback ensures that there are no pauses between audio files. This provides playback with no interruptions, the way it was meant to be heard.

To ensure maximum network audio quality, the receiver supports WAV / FLAC 192 kHz/24-bit, Apple Lossless 96 kHz/24-bit, DSD 5.6 MHz and even the new AIFF 192 kHz/24-bit formats. It uses a BurrBrown 192 kHz/24-bit DAC that has a firmly established reputation for quality. Youʼll enjoy the beautiful sounds of high resolution audio.

The R-N402D is equipped for digital audio input — with both optical and coaxial terminals. The optical is for receiving audio from a TV, and the coaxial for receiving audio from a Blu-ray Disc player. The audio stays in the digital domain, giving you pure, pristine dynamic sound for all your entertainment sources, from sports and other programmes to movies and concerts.

Yamaha R-N402D Key Features:

• Yamaha high sound quality, created by rich experience and tradition, and high technological expertise (Traditional Natural Sound concept / high sound quality circuit design / 100 W x 2 high power output)
• Supports 5.6MHz DSD Native and 192 kHz/24-bit High Resolution Music(Flac/ WAV/ AIFF) with high performance 24-bit D/A converter
• MusicCast for audio enjoyment in every room
• Control app for easy operations (MusicCast CONTROLLER)
• Support for internet radio and various music streaming services
• DAB / DAB+* and FM tuners both have 40 station preset memories
• Supports Bluetooth® output for pairing R-N402D and other Bluetooth equipped products
• Bluetooth for wireless music streaming
• AirPlay® allows music streaming from Mac, PC, iPod®, iPhone®, iPad®
• USB digital connection for USB flash drives on the front panel
• Gapless Playback compatibility
  Digital audio input for TV or Blu-ray Disc™ player
• Simple yet sophisticated design
• Screw-type speaker terminals
• Speaker selector and speaker terminals for two systems

• Yamaha high sound quality, created by rich experience and tradition, and high technological expertise
• Pure Direct Mode for greater sound purity
• Simple and sophisticated design
• Phono MM terminal for vinyl playback
• Screw-type speaker terminals
• Speaker selector and speaker terminals for two systems
• Simple design remote control
• Head phone terminal

Technical Specifications

Continuous power output, per channel, 8Ω

• Both channels driven, 8Ω,20Hz-20kHz, 0.2% THD - 200W
• Single, 4Ω, at 1kHz - 400W

Inputs

• Nominal sensitivity  for 200W / 8Ω - 1.15V (RCA), 2.3V (XLR)
• Input impedance - 10kΩ
• Frequency response 20Hz-20kHz +/- 0.05dB
• Signal/noise ratio (Awtd) 50W / 8Ω - 110dB

General

• Power consumption (standby) -