KIT-363 20 Second Voice recorder module
This voice recording module offers solid state storage and playback of a single 20 second message and can be extended up to 30 seconds with a slight degradation of sound quality.

Features:

• Non volatile flash memory
• No battery backup required
• 2 button operation REC/PLAY
• Low Power Consumption
• LED Indication
• Built in mic
• 5V Operation
• Only requires Speaker

Download datasheet file

KIT-189 120 Second Voice recorder module
Introducing the new kit 189. Uses a 17120 Second Voice Recorder Module. Non-volatile multi message recorder using ISD chips. Just change one resistor for longer duration. Standalone operation using just six onboard bottons. Record via built-in microphone or external line in. Speaker and line out connector. SPI interface. 8-24 VDC.

Download datasheet file

KIT-143 6-10W Stereo Amplifier Module
This hi-fi quality class AB audio amplifier is based on the TDA2005 IC with output current and thermal protection. 8-18 VDC Supply with 1-2 Amp capability required. THD <0.1%, S/N Ratio >80dBA, Gain <30dB

Download datasheet file

KIT-088 10W+10W Stereo Amplifier Module
The TDA2009A is a monolithic hi-fi quality audio power amplifier IC with dual class AB outputs, designed for high quality stereo applications.

Kit uses the data book application circuit and gives a gain of 36dB. It delivers 10 watts per channel into 4 Ohm speakers with a 24V DC supply. Can be fitted into existing equipment if required.

Supply range: 8 - 28V DC. Screw terminal block connections. Heatsink provided. PCB: 45 x 80mm.

Download datasheet file

KIT-106 50W Mono Hi Fi Power Amplifier
High power, hi-fi quality class AB audio amplifier module using a TDA7294 IC. Provides an impressive 50W RMS into 8 Ohm or 82W RMS into 4 Ohm with only 0.1% THD.

Mute and Standby are brought out to connection pads on PCB. IC has internal thermal protection.

Space is provided on the PCB for mounting a 1.4°C/W heatsink (not provided).

All components including IC insulation bush, screws, nuts & washers and TO-3 silicon-impregnated insulating washer are provided. Heat sink, speaker, cables and +/-30V power supply not provided. Solder pad connections. PCB: 84x83mm (heatsink area of PCB is 37x83mm but can overhang if required).

Download datasheet file

KIT-120 50W RMS Amplifier Module Kit

Performance:
Output Power: 50W into 8Ohm; 70W into 4Ohm.
Music Power: 77W into 8Ohm; 105W into 4Ohm.
Frequency Response: -1dB at 14Hz and 70kHz (at 1W -see Fig.1).
Input Sensitivity: 0.875V for 50W into 8Ohm.
Harmonic Distortion: <0.05% from 20Hz to 20kHz; typically <0.003%.
Signal-to-Noise Ratio: -114dB unweighted (22Hz to 22kHz); -119dB A-weighted, both with respect to 50W into 8Ohm.
Damping Factor: >140dB at 100Hz & 1kHz, with respect to 8Ohm and without PTC thermistor.
Protection: Fuses plus "PTC Fuse" PTC thermistor.
Stability: Unconditional

KIT-151 135W RMS Amplifier Module Kit

(SC August ‘08) This 135W amplifier module produces incredibly low levels of distortion even at high power outputs. The class AB design runs much cooler than genuine class A amplifiers, yet performance has not been sacrificed. It produces 135W into 8 Ohm or 200W into 4 Ohm with distortion levels around 0.008%. Heatsink is not supplied, we suggest the H 0545 diecast heatsink for a professional finish when mounted in a case.

KIT-536 Guitar Jammer Headphone Amplifier Kit

Ever wanted to play your guitar through your headphones along with your favourite music at the same time? Well now you can with the guitar jammer. Just plug the CD and guitar into this kit and you can play along with the best of them.

Features:
Low noise circutry
Separate CD & Guitar volume controls
Frequency response: -3db @ 30Hz and 70Hz
9V battery operated or 9VDC plugpack operated
Suplied with professionally finished & screened case

KIT-803 DSP Musicolour Musical Lights Kit

(SC June/July ‘08) Accepts audio input signals and drives coloured lights "in tune" with the music. Four output channels respond to different audio frequency bands and the light brightness is in proportion to the amplitude of the frequency components. A LED menu display is featured on the front panel and this also functions as a spectrum analyser or VU meter.

AUD-001 Breakout Board for VS1000D

Description: This is a breakout board for the VS1000D -- a single-chip Ogg Vorbis (license-free audio codec) player with USB and NAND-FLASH interfaces. Perfect for any audio application, this board works as a standalone Ogg Vorbis player out of the box. Just connect it to USB, drag and drop Ogg Vorbis files to the device, and press play! Alternatively, the board can easily be embedded in any project that needs audio. The 0.1" header on the side allows easy access to the control lines, so the audio files can be triggered with just a couple of GPIO lines! All control features (power, play, pause, forward, back, volume, random on/off) are accessible. The on-board NAND flash chip behaves just like a flash drive, and the chip can drive a pair of headphones or small speaker with no extra power source.

The breakout board includes a 256MB external NAND-FLASH IC, 5 momentary push buttons for playback and volume control, 3.5mm audio jack and a miniUSB connector. Access to UART, SPI, NAND-FLASH, and power supply pins is provided by the 0.1" pitch headers.

Power can be supplied to the board by an external source connected to the Vcc and GND pins or through USB. Power for the I/O, digital, and analog supplies is internally regulated by the VS1000D.

Features:

    * VS1000D Ogg Vorbis player IC
    * 2 gigabit (256 megabyte) external NAND-FLASH IC
    * Full-speed USB interface
    * 3.5mm audio jack
    * Playback control buttons/breakout lines:
          o Power/ Pause / Play
          o Volume control
          o Next song / Fast Forward
          o Previous Song / Rewind
          o Random Play

Dimensions:
    * 2.15x1.65"

Download VS1000D Breakout Schematic
Download VS1000D Datasheet
Download VS1000D Programmer's Guide

AUD-002 MP3 Trigger 

Description: Created in collaboration with Jamie Robertson, the MP3 Trigger is quite possibly the most versatile, low-cost, low power embedded MP3 Player. The board has 7 external trigger pins that will directly trigger pre-selected MP3 tracks, and a full-duplex serial control port that provides full transport control, remote triggering for up to 256 tracks, and fast real-time volume control. The board plays the MP3 files directly from a FAT16 microSD flash card and supports 192Kbps stereo playback.  There is also an on-board navigation switch for local access and playback of all MP3 tracks on the flash card.

The board uses a Cypress PSoC CY8C29466-24SXI microcontroller and a VLSI VS1053 audio codec.

Board can be powered by an external wall wart, FTDI Basic, or raw 3.3V input (see related items below).

Features:

    * Input voltage: 4.5-12VDC
    * Current Consumption: 45mA idle, 85mA playing
    * File system: FAT16
    * Audio out: line level stereo (1/8" stereo jack)
    * Trigger inputs: 3.3-5V, active low inputs with internal pull-ups
    * Serial: Full duplex, 8N1, 38.4K baud

Download Schematic
Download Datasheet

AUD-003 USB MP3 Player  

Description: Designed for BGM systems in commercial installations requiring audio playback from a USB memory stick. Alternatively it can be used to add MP3 playback to any domestic audio system. Simply connects to an amplifiers RCA input and provides typical CD player style functionality ie: play/pause & track skip. Tracks will automatically loop providing a constant source of background music for PA systems. Line output level volume is adjustable via the side panel. Suitable for use with USB memory sticks or SD/SDHC/CF cards when used in conjunction with a card reader. Requires 12VDC plugpack. Dimensions: 100L x 40H x 55Wmm.

Features:

• Supports MP3 folder hierarchy structure ie: will browse music inside folders on stick
• Compact size
• Line level volume adjustment
• Simple plug and play operation
• Box flange allows mounting to any surface
• Automatic playback looping
• Starts playback immediately on power up
• If power is lost, playback will recommence at last position when power is restored.

All prices are in Australian Dollars. Prices do not include GST (Goods and Services Tax). 10% GST applies to goods delivered in Australia. Australian GST is not paid on shipments despatched to an international destination. You can check the exchange rate by going to http://www.x-rates.com