UC1 Universal ADDA Converter

UC1 Universal ADDA Converter

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There are many USB audio interfaces on the market but few of them are designed with both the sound quality and the specific use case in mind. Free Shipping to Continental US only !

Grimm Audio UC1 Universal ADDA Converter

“The ‘Universal Converter’ UC1 solves all your monitoring needs. It has outputs for analog and digital destinations and offers analog and digital loops with LS1 quality converters.”

The Grimm Audio UC1 is a mid price USB interface and monitor controller that has a different approach. It is an ideal match with the Grimm Audio LS1 or PMC monitoring systems, and works great with other active loudspeakers too.

Present day use cases have been the premier focus from the first UC1 sketches onwards. This led to an unusual design with remarkable flexibility.

When mixing and mastering, not all inputs and outputs are equal. The UC1 offers 18 channels of USB I/O of which some are dedicated to monitoring and others to re-recording. With the second USB ‘i-put’ on the front there is no sample rate and word length restriction when using your iPad or iPhone. The i-put also serves as a convenient stereo USB input for laptops.

UC1 Features

- 18 channel back USB & 2 channel front USB

- 4+2 analog outputs, 4 analog inputs

- 4 digital outputs, 4 digital inputs

- Versatile monitoring features

- Ultra-low jitter clock with hybrid PLL

- High performance phones output

- Foldback for latency free monitoring

- Sample rates from 44.1kHz up to 192kHz

- Word clock in- and output


Analogue Output 

Clip level: +18 dBu ±0.2 dB ▪ THD+N: -100 dB

SNR: 114 dB

Output Impedance: <25 Ohm below 20 kHz

Headphone: 6.3 mm stereo jack max 15 dBu in 600 Ohm (30 mW)

Analogue Input 

Clip Level: XLR +18 or +24 dBu ±0.2 dB, Jack -18 dBu to +18 dBu ±0.2 dB

THD+N: -105 dB

SNR: 115 dB

Input Impedance: 20 kOhm below 20 kHz

6.3mm Stereo Jack Input Impedance 1 MOhm

Digital Input & Output Specifications


Impedance: 110 Ohm

Sensitivity: 200 mVpp - 5 Vpp

Clock Specifications

Sample Rates: PCM 44.1 kHz - 192 kHz

Internal Intrinsic Clock Jitter: 10 Hz

Clock Frequency Master Mode: 44.1 or 48 kHz ± 20 PPM, -5 +50 °C

BNC Word Clock 75 Ohm Input & Output Impedance, 5V

General Specifications

Power Supply Voltage: 90-240 VAC, 50/60 Hz

Power Consumption: 30 W

Fuse: F630 mA

Max Ambient Temperature for Operation: 40 °C

Life Expectancy Power Supply Electrolytic's: > 45.000 hr

Weight: 7.71 lbs

Dimensions: 17.12" x 9" x 1.73" ( Excluding rack ears )

Wood Type on Front: Padauk

Product Documentation 

Grimm Audio UC1 User's Manual

Grimm Audio UC1 Info Sheet