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Hoontech Digital I/O Card
Written by Clarence Song

Digital DIN

The 9-pin Digital DIN connector found on the original Digital I/O card enables connection to Cambridge SoundWorks speakers like the FPS2000, which sport a digital input.

Unfortunately, this connector is missing from Hoontech's card as it might not be necessary once you use their SoundTrack Digital Amp for digital decoding.


SoundTrack Digital Amp 4CH

This device is a 96kHz 24-bit DAC which allows input of 4 channels of sound, providing digital decoding for the front and rear channels produced by the SBLive!.

 


Creative's
I/O Card

 

A pair of cables are included when you purchase the digital amp. These cables have standard coaxial plugs on one end, and miniplugs for connecting to the amp on the other end. One cable provides 2 channels (left and right) of front or rear digital signals to the amp.

 


SoundTrack Digital Amp 4CH

Head over to Hoontech's site for more details. If you have tried it, please send us your reviews!


Experiences

Installing the card was a no-brainer. I just popped out the old card, removed the ribbon cable and screwed this into the casing. I brought over my MiniDisc deck for a test run.

Since the SBLive! is locked at 48kHz, any digital device that you connect to the card (be it with optical or coaxial connectors) has to support 48kHz sample rate. Fortunately, all MiniDisc recorders, most DAT decks and digital amplifiers  have a sample rate converter which will convert the 48kHz from the SBLive! to its own native format (most probably 44.1kHz), so that sounds can be recorded to these formats.

The SBLive! outputs a digital stream continuously from the mixer. The audio passes through all the internal mixing elements, like the volume control. This may induce some noise from sources like CD Audio, so its recommended that you turn on only the mixer channel for that particular sound you want to record (for example, the wave output). Mute the rest.

Creative should provide a pure digital passthrough mode on the mixer so that sound from the mixer sources will not go through any volume, bass, treble adjustments, and any other process which modifies the souind output by the playback software, but instead will be sent directly to the digital out.

Right now, what is output will be exactly like what you hear from the analog front channels, because the optical digital output is from the front channels. Environmental Audio settings will also be output.

All in all, the card is a solid product which works great! I love being able to record to my MD deck without worry about distortion, hissing and other stuff which almost always manage to creep in and spoil a recording.

 

 
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