ULTRAMATCH PRO SRC2496
2.1.1 Monitor and input sections
Fig. 2.2: Input section control elements
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.
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.
+When the ULTRAMATCH PRO operates as an
analog output only in DIG IN mode (see , ).
This is the stereo 1/4" TRS connector for your headphones.
The ANALOG IN and/or ANALOG OUT LEDs indicate which signal (input or output) is being displayed by the level meter.
The SOURCE switch routes the analog input or output signal to the level meter.
LEVEL METER. The signal shown here can always be monitored with the headphones.
Fig. 2.3: Input section control elements
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.
The LOCK LED lights up when a valid digital
The ERROR LED warns you of erroneous (or the absence of any) input signals. It displays various error modes, such as “Unlock,” “Parity Error,”
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
The COPY LED (= copyright) lights up when the input signal was supplied from a
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 ).
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
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.
Use the SOURCE switch to select the active input. Only one digital input can be activated at a time. However, in
The LEDs XLR, RCA and OPTICAL indicate the input activated by the user.
2.1.2 Mode section
Fig. 2.4: Mode section
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
Use the MODE switch to switch over between these two operating modes.
2.1.3 Output section
Fig. 2.5: Output section
The SAMPLE RATE switch selects the sampling rate to which the input signal is to be converted or made available at the outputs. For this purpose, the SRC2496 must be set to internal mode, i.e. it has to function as a master unit (see
sections and ).
6 | 2. CONTROL ELEMENTS |