Behringer Ultramatch Pro SRC2496 Manual De Usuario

ULTRAMATCH PRO SRC2496 User Manual

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Fig. 2.2: Input section control elements

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Use the GAIN control to adapt the signal level perfectly to the circuitry of 

your ULTRAMATCH PRO. The level should be as high as possible, but the 0 dB 

LED should only light up occasionally or never at all to avoid distortion.

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The PHONES control governs the headphone volume. You can monitor 

either the analog output or input by setting the SOURCE switch accordingly. 

The analog output always provides the signal applied to the selected digital 

input, so this signal can be monitored with the headphones, too.

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This is the stereo 1/4" TRS connector for your headphones.

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The ANALOG IN and/or ANALOG OUT LEDs indicate which signal 

(input or output) is being displayed by the level meter.

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The SOURCE switch routes the analog input or output signal to the 

level meter.

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LEVEL METER. The signal shown here can always be monitored with 

the headphones.

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Fig. 2.3: Input section control elements

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This LED array displays the sampling rate of the digital input signal. One LED 

lights up constantly when the sampling rate is kept accurately or does not 

deviate from the nominal value by more than approx. 2 kHz. Otherwise, 

the LED for the next value starts flashing.

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The LOCK LED lights up when a valid digital signal—to which the 

ULTRAMATCH PRO can be synchronized—is applied to the active input. 

When digital input signals are being processed, this LED should be on all the 

time, showing the presence of a stable input signal.
The ERROR LED warns you of erroneous (or the absence of any) input signals. 

It displays various error modes, such as “Unlock,” “Parity Error,” “Bi-Phase 

Error” and “Confidence Error.” The signal is then checked as to whether or not 

it is an audio signal. Any detected error makes the SRC2496 mute all of its 

outputs to protect down-stream audio equipment. As long as the ERROR LED 

is lit, the ULTRAMATCH PRO cannot process any input signals.

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The EMPH LED shows you whether or not the input signal includes an 

emphasis marker. “Emphasis” is a high-frequency boost function that 

is applied during the digital recording but is undone during playback. 

When the LED lights up, the signal was emphasis-processed during 

recording. You should always make sure that the EMPH LEDs in the input and 

output sections read the same status.
The COPY LED (= copyright) lights up when the input signal was supplied 

from a copy-protected data carrier. 
The ORIG LED (= original) informs you that the audio signal received is an 

original signal, i.e. that it can be copied (see chapter 2.1.3, section  

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).

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The AES/EBU LED lights up when an AES/EBU signal has been applied at the 

active input connector. 
The same holds true for the S/PDIF LED, i.e. when a consumer-format signal 

has been applied.
If the unit is set to A/D and D/A converter mode, the S/PDIF LED lights up 

even when no digital signal is present. This is due to the circuitry used and 

does not indicate a malfunction of the unit. Further information on the 

formats AES/EBU and S/PDIF can be found in chapter 4.2.

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Use the SOURCE switch to select the active input. Only one digital input can 

be activated at a time. However, in A/D-D/A converter mode, you can use 

one digital input and the analog inputs simultaneously (parallel A/D and D/A 

conversion). For further information please refer to chapter 3.1.3. 

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The LEDs XLR, RCA and OPTICAL indicate the input activated by the user. 

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Fig. 2.4: Mode section

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The two LEDs SAMPLE RATE CONV and A/D & D/A CONV inform you 

about the operating mode of your SRC2496, i.e. sampling rate converter or 

A/D-D/A converter.

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Use the MODE switch to switch over between these two operating modes.

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Fig. 2.5: Output section