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USB AUDIO INTERFACE
On Sale

 

USB AUDIO INTERFACE from Purebits

NOTE: currently our soundcards are NOT ON SALE
This page is here for information only

 

USB Audio interfaces (2 models) are now available from Purebits. They have been designed and manufactured for acoustics measurements and Live Recordings purposes, but are excellent also for other applications.

 

X4 - General Description

X2 - General Description

X2 and X4 - Features comparison

X2 and X4 - Prices and ordering options

SHIPPING

HOW TO ORDER




X4 Model

X4 manual (PDF file)

Download zipped X4 manual

Technical specifications:

2 channel IN / 2 channel OUT USB soundcard (16 bit, up to 48 kHz sample rate (*)), compatible with all Windows versions (no driver required), Linux and Macintosh.

High accuracy A/D and D/A converters from Burr-Brown.
Burr-Brown PCM2906 codec specifications:
DAC: THD+N 0.005%, SNR 96 dB, Pass-Band Ripple +/- 0.1 dB
ADC: THD+N 0.01%, SNR 89 dB, Pass-Band Ripple +/- 0.05 dB

(*)
The soundcard can operate also at a sample frequency of 96 kHz, but the audio bandwidth is limited to 22 kHz.

No external power supply required. Powered by the USB port.

Very robust anodized aluminum enclosure.
Compact size: 103 x 53 x 120 mm

2 x 10 Led VU-Meter bar graphs, for accurate input level adjustment.

Can be used as Preamplifier for Microphone and line levels.
The Input and output stages are realized using state-of-the-art Burr-Brown operational amplifiers.

Burr-Brown OPA2353 specifications:
THD+N 0.0006%, very low noise 5nV/sqrt(Hz), Rail to Rail I/O

4 x inputs, RCA connectors, mixable with stereo input JACK connector. Input 1 and 3 are downmixed to USB input Left. Input 2 and 4 are downmixed to USB input Right. Suitable for Live recording, using 2 or 4 microphones, and for acoustic measurements.

Separate switchable phantom power supply (3,6 V) for channels 1/2 and 3/4, optimized for Panasonic WM6x series electret microphonic capsules.

Input level adjustment realized with high accuracy Cermet potentiometers. Separate knobs for inputs 1/3 and 2/4.

Separate Preamplifier/Monitor JACK stereo output.
Suitable for driving line or headphone loads.

USB soundcard stereo JACK/2 x RCA output.
Suitable for driving line or headphone loads.

Line/Microphone input gain switch.

Digital Input / output. Coaxial and Optical.

Manual selector switch for Coaxial or Optical input (the digital input signal can be recorded only through USB, it is not buffered to monitor output).

FRONT VIEW - BLACK


Click to zoom image



REAR VIEW - BLACK


Click to zoom image

 

 

FRONT VIEW - NATURAL


Click to zoom image



REAR VIEW - NATURAL


Click to zoom image

 

 

 

X2 Model

X2 manual (PDF file)

Download zipped X2 manual

Technical specifications:

2 channel IN / 2 channel OUT USB soundcard (16 bit, up to 48 kHz sample rate (*)), compatible with all Windows versions (no driver required), Linux and Macintosh.

High accuracy A/D and D/A converters from Burr-Brown:
Burr-Brown PCM2906 codec specifications:
DAC: THD+N 0.005%, SNR 96 dB, Pass-Band Ripple +/- 0.1 dB
ADC: THD+N 0.01%, SNR 89 dB, Pass-Band Ripple +/- 0.05 dB

(*)
The soundcard can operate also at a sample frequency of 96 kHz, but the audio bandwidth is limited to 22 kHz.

No external power supply required. Powered by the USB port.

Very robust anodized aluminum enclosure.
Pocket size: 54 x 23 x 80 mm

Stereo JACK Input connector.

USB soundcard stereo JACK output.
Suitable for driving line or headphone loads.

Phantom power optimized for Panasonic WM6x series electret microphonic capsules (3,6 V). Fixed input gain.

Input and output stages realized using state-of-the-art Burr-Brown operational amplifiers

Burr-Brown OPA2353 specifications:
THD+N 0.0006%, very low noise 5nV/sqrt(Hz), Rail to Rail I/O


FRONT VIEW - BLACK


Click to zoom image



FRONT VIEW - NATURAL


Click to zoom image

 

 

 

X2, X4 - Features comparison:

Feature
X2
X4
Microphone
pre-amplifier
NO
YES
(variable gain,
34 dB)
Pre-amplifier
input channels
-
4
Phantom power for electret capsules (3,6 V)
YES
(always active)
YES
(can be turned OFF,
separate switches for
IN 1-2, IN 3-4)
Vu-Meter
NO
YES
2 LED Bars (10 elements)
Pre-amplifier gain limiter switch
-
YES
(max gain: 14 dB)
Soundcard input channels
2
2
Soundcard output channels
2
2
Input connectors
Soundcard input:
1 Stereo Jack

Soundcard input:
1 Stereo Jack (IN 1-2)

Pre-amplifier:
4 RCA (IN 1-2-3-4)

Output connectors
Soundcard output:
1 Stereo Jack

Soundcard output:
1 Stereo Jack
2 RCA

Pre-amplifier:
1 Stereo Jack

Digital input
Coaxial
NO
YES
Digital input
Coaxial
NO
YES
Digital output
Optical
NO
YES
Digital output
Optical
NO
YES

 

 

 

X2, X4 Prices and ordering options

All prices are VAT included

 

HARDWARE ONLY
HARDWARE + SC PRO FULL LICENSE
HARDWARE + SC PRO PERSONAL/HOME LICENSE
HARDWARE + SC PRO EDUCATIONAL LICENSE
HARDWARE + SC PRO BUNDLE FULL LICENSE
HARDWARE + SC PRO BUNDLE PERSONAL/HOME LICENSE
HARDWARE + SC PRO BUNDLE EDUCATIONAL LICENSE


Model
Price [EUR]
[Code X4N-H]

X4 Natural anodized aluminum enclosure
HARDWARE ONLY


CURRENTLY
NOT ON
SALE

[Code X4B-H]

X4 Black anodized aluminum enclosure
HARDWARE ONLY
CURRENTLY
NOT ON
SALE
[Code X2N-H]

X2 Natural anodized aluminum enclosure
HARDWARE ONLY
CURRENTLY
NOT ON
SALE
[Code X2B-H]

X2 Black anodized aluminum enclosure
HARDWARE ONLY
CURRENTLY
NOT ON
SALE
HARDWARE +
SAMPLE CHAMPION PRO
(FULL LICENSE)
Price [EUR]
[Code X4N-S1]

X4 Natural anodized aluminum enclosure
+
SAMPLE CHAMPION PRO
FULL LICENSE (249 EUR value)

CURRENTLY
NOT ON
SALE

[Code X4B-S1]

X4 Black anodized aluminum enclosure
+
SAMPLE CHAMPION PRO
FULL LICENSE (249 EUR value)
CURRENTLY
NOT ON
SALE
[Code X2N-S1]

X2 Natural anodized aluminum enclosure
+
SAMPLE CHAMPION PRO
FULL LICENSE (249 EUR value)
CURRENTLY
NOT ON
SALE
[Code X2B-S1]

X2 Black anodized aluminum enclosure
+
SAMPLE CHAMPION PRO
FULL LICENSE (249 EUR value)
CURRENTLY
NOT ON
SALE
HARDWARE +
SAMPLE CHAMPION PRO
(PERSONAL/HOME LICENSE)
Price [EUR]
[Code X4N-S2]

X4 Natural anodized aluminum enclosure
+
SAMPLE CHAMPION PRO
PERSONAL/HOME LICENSE (199 EUR value)

CURRENTLY
NOT ON
SALE

[Code X4B-S2]

X4 Black anodized aluminum enclosure
+
SAMPLE CHAMPION PRO
PERSONAL/HOME
LICENSE (199 EUR value)
CURRENTLY
NOT ON
SALE
[Code X2N-S2]

X2 Natural anodized aluminum enclosure
+
SAMPLE CHAMPION PRO
PERSONAL/HOME LICENSE (199 EUR value)
CURRENTLY
NOT ON
SALE
[Code X2B-S2]

X2 Black anodized aluminum enclosure
+
SAMPLE CHAMPION PRO
PERSONAL/HOME LICENSE (199 EUR value)
CURRENTLY
NOT ON
SALE
HARDWARE +
SAMPLE CHAMPION PRO
(STUDENT/EDUCATIONAL LICENSE)
Price [EUR]
[Code X4N-S3]

X4 Natural anodized aluminum enclosure
+
SAMPLE CHAMPION PRO
EDUCATIONAL LICENSE (149 EUR value)

CURRENTLY
NOT ON
SALE

[Code X4B-S3]

X4 Black anodized aluminum enclosure
+
SAMPLE CHAMPION PRO
EDUCATIONAL LICENSE (149 EUR value)
CURRENTLY
NOT ON
SALE
[Code X2N-S3]

X2 Natural anodized aluminum enclosure
+
SAMPLE CHAMPION PRO
EDUCATIONAL LICENSE (149 EUR value)
CURRENTLY
NOT ON
SALE
[Code X2B-S3]

X2 Black anodized aluminum enclosure
+
SAMPLE CHAMPION PRO
EDUCATIONAL LICENSE (149 EUR value)
CURRENTLY
NOT ON
SALE
HARDWARE +
SAMPLE CHAMPION PRO BUNDLE
(FULL LICENSE)
Price [EUR]
[Code X4N-S4]

X4 Natural anodized aluminum enclosure
+
SAMPLE CHAMPION PRO BUNDLE
FULL LICENSE (329 EUR value)

CURRENTLY
NOT ON
SALE

[Code X4B-S4]

X4 Black anodized aluminum enclosure
+
SAMPLE CHAMPION PRO BUNDLE
FULL LICENSE (329 EUR value)
CURRENTLY
NOT ON
SALE
R
[Code X2N-S4]

X2 Natural anodized aluminum enclosure
+
SAMPLE CHAMPION PRO BUNDLE
FULL LICENSE (329 EUR value)
CURRENTLY
NOT ON
SALE
[Code X2B-S4]

X2 Black anodized aluminum enclosure
+
SAMPLE CHAMPION PRO BUNDLE
FULL LICENSE (329 EUR value)
CURRENTLY
NOT ON
SALE
HARDWARE +
SAMPLE CHAMPION PRO BUNDLE
(PERSONAL/HOME LICENSE)
Price [EUR]
[Code X4N-S5]

X4 Natural anodized aluminum enclosure
+
SAMPLE CHAMPION PRO BUNDLE
PERSONAL/HOME LICENSE (299 EUR value)

CURRENTLY
NOT ON
SALE

[Code X4B-S5]

X4 Black anodized aluminum enclosure
+
SAMPLE CHAMPION PRO BUNDLE
PERSONAL/HOME
LICENSE (299 EUR value)
CURRENTLY
NOT ON
SALE
[Code X2N-S5]

X2 Natural anodized aluminum enclosure
+
SAMPLE CHAMPION PRO BUNDLE
PERSONAL/HOME LICENSE (299 EUR value)
CURRENTLY
NOT ON
SALE
[Code X2B-S5]

X2 Black anodized aluminum enclosure
+
SAMPLE CHAMPION PRO BUNDLE
PERSONAL/HOME LICENSE (299 EUR value)
CURRENTLY
NOT ON
SALE
HARDWARE +
SAMPLE CHAMPION PRO BUNDLE
(STUDENT/EDUCATIONAL LICENSE)
Price [EUR]
[Code X4N-S6]

X4 Natural anodized aluminum enclosure
+
SAMPLE CHAMPION PRO BUNDLE
EDUCATIONAL LICENSE (279 EUR value)

CURRENTLY
NOT ON
SALE

[Code X4B-S6]

X4 Black anodized aluminum enclosure
+
SAMPLE CHAMPION PRO BUNDLE
EDUCATIONAL LICENSE (279 EUR value)
CURRENTLY
NOT ON
SALE
[Code X2N-S6]

X2 Natural anodized aluminum enclosure
+
SAMPLE CHAMPION PRO BUNDLE
EDUCATIONAL LICENSE (279 EUR value)
CURRENTLY
NOT ON
SALE
[Code X2B-S6]

X2 Black anodized aluminum enclosure
+
SAMPLE CHAMPION PRO BUNDLE
EDUCATIONAL LICENSE (279 EUR value)
CURRENTLY
NOT ON
SALE

All prices are VAT included



NOTE: currently our soundcards are NOT ON SALE


 


From Robert Thompson, USA:

It's truly great! I have tried it out several times and each time I'm blown away with how well it works, as well as the superb recording it can make when coupled with inexpensive Panasonic mic capsules!


 

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