ATH-M50x-Bluetooth-Mod/03_Bluetooth-adapter.md
2021-09-10 19:42:21 +02:00

6.1 KiB

Bluetooth receiver + DAC + amplifier + battery

MPOW receivers

Small with included battery

MPOW Bluetooth 4.1 audio receiver

MPOW Bluetooth 5.0 aptX audio receiver

  • xmpow.com
  • amazon.de
  • 15m working range
  • TODO: What are the dimensions?
    • 5 bis 6cm x 3.5 x 1 bis 1.5 cm (Amazon Q&A)
  • manual

TaoTronics TT-BA07

There are two different versions of this model.

  • Bluetooth (VersionA)
    • Bluetooth Version: Bluetooth V4.1 with EDR
    • Bluetooth Profile: A2DP
  • Bluetooth (VersionB)
    • Bluetooth Version: Bluetooth V5.0
    • Bluetooth Profile: A2DP / AVRCP
  • aptX audio codec
  • 4.55 x 3.25 x 0.95 cm
  • pdf (VersonA)
  • pictures (VersionB)
  • taotronics.com
  • 18€ on eBay.de
    • used for ~15€

TaoTronics TT-BR05

  • Bluetooth 4.0 with EDR
  • 5.2 x 2.55 x 1.04 cm
  • pdf

bluetooth receiver and battery charger

  • 3.7-5V in via micro-USB
    • Maximum: 5V with 2A
    • 2x 5W audio output
    • Can be used to charge a connected 3.7V lithium battery, but the battery itself needs a protection board (PCB)!
  • 4.0 x 2.0 cm
  • bluetooth 5.0
    • device name: DW-CT14+
  • amazon.de
  • ebay: Watch out for the version number

VHM-314

Bluetooth DAC without battery or charging circuit

  • 2.22 € on eBay
  • power in: DC 3.7-5V
  • Bluetooth 5.0
  • "lossless MP3"
  • Decoder Module D7W1
  • small: 3.3 x 3.5 x 1.1cm

Amazon Reviews:

Wenn es allerdings nicht über Akku oder Batterie, sondern über ein Netzteil betrieben wird, macht es einige Störgeräusche im Standby

Macht Störgeräusche bei jeder Stille, auch innerhalb eines Tracks. Sehr störed, da hilft auch Bluetooth 5.0 mit WAV oder Flac nichts, wenn zwischendurch irgendwo Stille ist und die direkt mit nem Quietscher eingeläutet wird.

Tends to overload and distort fairly easily. The loop through is very poor with bad distortion.

lithium-ion battery converter

  • power in: 5V (micro-USB)
  • power out: 5V
  • 1.66 € on eBay
  • small: 3.5cm x 1.5 cm

lithium-ion battery charger

  • power in: 4.5-6.0V (-> micro-USB 5V)

  • power out: (?) 3.7V I guess (straight from the batteries)

  • battery protection (overcharge, over-discharge, overcurrent)

  • one or two batteries can be connected

  • smaller: 2.8 x 1.7 cm

  • addicore.com

  • eBay

  • eBay, USB-C

More details in folder 03_TP4056_TC4056A

lithium-ion battery charger

  • Uses the TP4056 chip as well.

  • A bit smaller in size

  • ebay

tiny USB-C LiPo charger