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The Simpl Acoustics A1 headphone amplifier is slightly smaller than the standard size iPod.  It comes with its own internal Lithium-ion rechargeable battery, USB charging cable, and a mini plug connecting cable.

The amplifier will work with any music device that has a mini plug headphone jack, but is sized to slip onto the back of the full size iPod players using rubber "podGrips".

There are two mini plug jacks on the top of the A1.  The right jack is for the headphones, the left is for connecting the headphone jack of the iPod.

The center white button is the power switch for the amplifier.  The device is switched on when the green LED is lit.

The internal Lithium-ion battery is recharged using power from a computer's USB port.  A red LED indicator is lit when the unit is connected and recharging.

The A1 amplifier is pretty light... less than 3 oz for the electronics, the external battery, and case. 

For the FirstUse review, we will charge up the unit and hook it up to a few players and headphone to see how this unit performs.  It will be interesting to see if this amplifier can drive the larger high fidelity stereo headphones we use for our home stereo system and not just the ear buds that we use with the portable devices.



Simpl Acoustics

A1 Amplifier

By Wan Chi Lau

The Apple iPod has spawned an entire accessories economy. Companies that make protective cases have been doing a booming business because of the iPod "after-market" industry, as have those that make chargers, docks, external speakers, etc...

Now there are companies making accessories not just to extend the iPod's function, but to enhance the sound from the iPod itself.

Simpl Acoustics is shipping a product called the Simpl A1 amplifier.

The FirstLook review will give an overview of the device, what came in the box, and how it works.

In the FirstUse review, we will hook it up to a few iPods and MP3 players to see if we can discern a difference in sound quality when using the A1 amplifier.


1. FirstLook

2. FirstUse



Review Summary:

Initial Impression- Simple

Usability- Works with any mini jack


Price- $100


iPod Related Reviews:

1. iPod nano FirstLook

2. iPod nano FirstUse

3. InvisibleShield Install

4. InvisibleShield Removal

5. InvisibleShield v.2 Install

6. iKeyChain FirstLook

7. iKeyChain FirstUse

8. Speck cases FirstLook

Photography by Wan Chi Lau
Rainy Day Magazine is a Publication of Rainy Day Entertainment Group © 2005