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Listen and Believe

The HA1 is a fully discrete Bi-Polar headphone amplifier with a standard line level input with loop output, so you don’t loose an input, plus a rear panel switch-able dedicated MP3/iPod input. (trade marks acknowledged)

 

It has a very low output impedance and uniquely features a fully regulated power supply which both lowers noise and increases the dynamic range.  The pre-amp section is totally passive with the input going directly to the volume control. It will happily drive all know types of headphone with ease. This is no standard headphone amplifier.

 

The headphone output jack is a professional quality 6.3mm 1/4” Neutrik type which will prove very robust over many years of use.

 

The sound quality is totally effortless with big out of the head imaging with clean clear dynamics which creates a very musical performance that totally belies this diminutive box, this actually makes headphone listening fun.

 

It has all the usual Edwards Audio styling and gold plated PCB’s but most importantly is also covered by our 10 year guarantee

 

With an incredible £235 inc VAT @ 17.5%  price tag this is sure to upset more than a few apple carts.

 

Status:- Now in full production.

 

 

HA1 graphic

HA1

Preliminary Specifications.

 

Max Input line

28mV

Max Input MP3

94mV

Gain

12dB

THD Distortion

<0.005% 1kHz

Signal to noise ratio

-85dB

Frequency response

within 0.25dB

Stereo separation

better than 65dB - 20-20kHz

Input Loading

100R with 2n2 capacitance

Output Jack 6.3mm / 1/4”

47K with 120pF

Output impedance

<10 Ohms

Max output level

2W into 8 Ohms

Dimensions WxHxL

115mm x 47.5mm x 160mm

Weight

1Kg

Power consumption

3.5W

Price

£235.00