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10-Dec-2020

2. Which IQaudio board is best for me?

Each IQaudio sound card has a specific purpose and has been designed to integrate with your

existing HiFi / audio or Raspberry Pi equipment. BEST audio playback is from our DAC PRO, DAC+

and DigiAMP+ boards. All support 24bit depth and 192kHz (Full HD Audio).

Line Out

(RCA)

Balanced

(XLR)

STEREO

Speakers

(2x35w)

MONO

Speaker

(1.2w)

Head-

phones

Aux In

1vRMS

Aux Out

1vRMS

Ext

Mic

Built

in Mic

DAC PRO

(XLR board)

DAC+

DigiAMP+

Codec Zero

(MONO)

(No Fit)

(No Fit)

(Electret)

Line Out: A double Phono/RCA connector - Normally Red / White in colour. This output is a variable

analogue signal (0..2vRMS) and connect to your existing HiFi (pre-amp or amplifier) or can be used

to drive Active speakers (with their own amplifier built in).

Balanced Out: An XLR connector - Normally a 3 pin male connector, this is used in Studio and some

hi-end hifi systems. It can also be used to drive ACTIVE

“monitor” speakers as used at discos or on

stage.

STEREO Speakers: Screw terminals - These are normal HiFi speakers (from bookshelf to floor

standing), normally with 2 or 3 drive units, where the signal is filtered to each drive unit by an internal

cross over within the speaker cabinet. These are known as PASSIVE speakers.

MONO Speaker: Screw terminal - Single drive unit speaker, as found in a transistor radio or similar.

Headphones: 3.5mm jack socket. Normally a tip/ring/ground (3pin headphone) delivering stereo

audio to a set of normal headphones. Our headphone amplifiers on the IQaudio DAC boards can

drive up to 80/90ohm impedance headphones. The headphone output of the Codec+ is also aux out.

Aux In: A double Phono/RCA connector or 3.5mm socket. Accepts analogue audio up to 1vRMS

input. Can be used to record audio from a variable analogue source such as phone / tape recorder or

similar.

Aux Out: A double Phono/RCA connector or 3.5mm socket. Delivers analogue audio up to 1vRMS

output. Can be used to feed audio into an amplifier (but at a reduced volume compared to Line Out)

Mic In: a 3.5mm socket for use with an external Electret microphone. Some of our boards have a

built in MEMS microphone that is disabled when the external microphone jack is inserted into the

3.5mm socket.