Behringer Ultramatch Pro SRC2496 Operation & User’s Manual

Table of Contents Important Safety Instructions.......................................3 Legal Disclaimer..............................................................3 Limited warranty.............................................................3 1. Introduction................................................................4 1.1 The design concept............................................................. 4 1.2 Before you begin ................................................................ 4 2. Control Elements........................................................4 2.1 Front panel of the ULTRAMATCH PRO SRC2496.................................................... 4 2.2 Rear panel of the ULTRAMATCH PRO........................... 6 3. Applications ...............................................................7 3.1 A/D and D/A conversion with the ULTRAMATCH PRO...................................................................... 7 3.2 Sample rate conversion..................................................... 9 3.3 Removing copy protect information............................ 9 3.4 Noise reduction with emphasis...................................... 9 3.5 Line booster, signal refresher........................................10 3.6 Correcting incorrect sample rates...............................10 3.7 Vari-speed application.....................................................10 3.8 Format converter...............................................................10 3.9 Format interface.................................................................10 3.10 Patchbay/splitter..............................................................10 4. Technical Background .............................................10 4.1 A short digression into digital sample rate conversion...........................................................................10 4.2 AES/EBU and S/PDIF standards.................................... 11 5. Installation................................................................ 11 5.1 General connection notes.............................................. 11 5.2 Analog inputs and outputs............................................ 11 5.3 Digital inputs and outputs............................................. 12 5.4 Headphones output......................................................... 13 6. Specifications............................................................ 13

Important Safety Instructions LEGAL DISCLAIMER LIMITED WARRANTY Terminals marked with this symbol carry electrical current of suffi cient magnitude to constitute risk of electric shock. Use only high-quality professional speaker cables with ¼" TS or twist-locking plugs pre-installed. All other installation or modifi cation should be performed only by qualifi ed personnel. This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure - voltage that may be suffi cient to constitute a risk of shock. This symbol, wherever it appears, alerts you to important operating and maintenance instructions in the accompanying literature. Please read the manual. Caution To reduce the risk of electric shock, do not remove the top cover (or the rear section). No user serviceable parts inside. Refer servicing to qualifi ed personnel. Caution To reduce the risk of fi re or electric shock, do not expose this appliance to rain and moisture. The apparatus shall not be exposed to dripping or splashing liquids and no objects fi lled with liquids, such as vases, shall be placed on the apparatus. Caution These service instructions are for use by qualifi ed service personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operation instructions. Repairs have to be performed by qualifi ed service personnel. 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. 8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifi ers) that produce heat. 9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fi t into your outlet, consult an electrician for replacement of the obsolete outlet. 10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus. 11. Use only attachments/accessories specifi ed by the manufacturer. 12. Use only with the cart, stand, tripod, bracket, or table specifi ed by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over. 13. Unplug this apparatus during lightning storms or when unused for long periods of time. 14. Refer all servicing to qualifi ed service personnel. Servicing is required when the apparatus has been damaged in any way, such as power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. 15. The apparatus shall be connected to a MAINS socket outlet with a protective earthing connection. 16. Where the MAINS plug or an appliance coupler is used as the disconnect device, the disconnect device shall remain readily operable. TECHNICAL SPECIFICATIONS AND APPEARANCES ARE SUBJECT TO CHANGE WITHOUT NOTICE AND ACCURACY IS NOT GUARANTEED. BEHRINGER IS PART OF THE MUSIC GROUP (MUSIC-GROUP.COM). ALL TRADEMARKS ARE THE PROPERTY OF THEIR RESPECTIVE OWNERS. MUSIC GROUP ACCEPTS NO LIABILITY FOR ANY LOSS WHICH MAY BE SUFFERED BY ANY PERSON WHO RELIES EITHER WHOLLY OR IN PART UPON ANY DESCRIPTION, PHOTOGRAPH OR STATEMENT CONTAINED HEREIN. COLORS AND SPECIFICATIONS MAY VARY FROM ACTUAL PRODUCT. MUSIC GROUP PRODUCTS ARE SOLD THROUGH AUTHORIZED FULLFILLERS AND RESELLERS ONLY. FULLFILLERS AND RESELLERS ARE NOT AGENTS OF MUSIC GROUP AND HAVE ABSOLUTELY NO AUTHORITY TO BIND MUSIC GROUP BY ANY EXPRESS OR IMPLIED UNDERTAKING OR REPRESENTATION. THIS MANUAL IS COPYRIGHTED. NO PART OF THIS MANUAL MAY BE REPRODUCED OR TRANSMITTED IN ANY FORM OR BY ANY MEANS, ELECTRONIC OR MECHANICAL, INCLUDING PHOTOCOPYING AND RECORDING OF ANY KIND, FOR ANY PURPOSE, WITHOUT THE EXPRESS WRITTEN PERMISSION OF MUSIC GROUP IP LTD. ALL RIGHTS RESERVED. © 2012 MUSIC Group IP Ltd. Trident Chambers, Wickhams Cay, P.O. Box 146, Road Town, Tortola, British Virgin Islands For the applicable warranty terms and conditions and additional information regarding MUSIC Group’s Limited Warranty, please see complete details online at www.music-group.com/warranty.

1. Introduction The BEHRINGER ULTRAMATCH PRO is a fully digital signal processor integrating 24-bit A/D and D/A converters. With its wide range of features, it provides a powerful state-of-the-art interface between the physical reality of music and its recording in digital form. To retain the true authenticity of your music, we not only developed a strong link between analog recording technology and the huge variety of signal processing possibilities available in the digital world, but also designed the ULTRAMATCH PRO SRC2496 to function as a universal inter-face between the various digital formats and sampling rates. Thus, incompatibilities between different equipment with regard to modified connectors, transmitted signals and applied standards are definitely a thing of the past. ◊ This manual first describes the terminology used, so that you can fully understand the SRC2496 and its functions. Please read the manual carefully and keep it for future reference. 1.1 The design concept The philosophy behind BEHRINGER products guarantees no-compromise circuit design and the best choice of components. We only use low-tolerance resistors and capacitors, high-grade switches and buttons as well as other select components to make sure that you can fully benefit from state-of-the- art 24-bit/96 kHz technology with regard to low noise and high dynamics. With the ULTRAMATCH PRO you have purchased some cutting-edge technology. Today, a lot of hi-fi equipment is already equipped with a digital interface, so the SCR2496 can not only be used as a high-end A/D and D/A converter in your studio, but also raises your home hi-fi system to a new level in terms of dynamics, low distortion and definition. It is thus possible to replace one of the weak points in the signal chain with an absolutely powerful unit. The SRC2496 provides you with the functionality of a first-class A/D and D/A converter, an outstanding sampling rate converter and a digital patchbay. Additionally, it can be deployed as a format converter, to set or remove copy bits, and as a signal refresher—but is still easy to operate. The front panel of your ULTRAMATCH RO features a functional and easily understandable layout. On the left-hand half of the panel you will find the monitor (left) and input sections (right); the right-hand half includes the mode (left) and output sections (right). Just imagine the signal passing through the unit from left to right and the design logic becomes clear. The monitor section enables you to monitor analog input/output signals. The level meter reads the analog input level and allows you to adjust it optimally. The status LEDs in the input section make it easy to check which type of digital signal (AES/EBU or S/PDIF) is being received and also display its sampling rate. Since the ULTRAMATCH PRO is automatically synchronized to any input signals within a range from 31 Hz to 100 kHz, there is no need for dedicated sampling rate selector switches on the input side. In the mode section you can see which of the SRC2496’s two basic functions (A/D and D/A converter or sampling rate converter) is currently active. Select the function of your choice at the touch of a button. The output section gives you the buttons and displays to adjust a variety of parameters for the digital output signal. The ULTRAMATCH PRO stores the last setting made before power-down, so you can continue from where you stopped when you turn the unit back on again. In a later section of this manual we will give you a detailed description of how you can use your ULTRAMATCH PRO in various applications. 1.2 Before you begin Your ULTRAMATCH PRO was carefully packed at the factory and the packaging is designed to protect the unit from rough handling. Nevertheless, we recommend that you carefully examine the packaging and its contents for any signs of physical damage which may have occurred during transit. ◊ If the unit is damaged, please do NOT return it to BEHRINGER, but notify your dealer and the shipping company immediately, otherwise claims for damage or replacement may not be granted. Shipping claims must be made by the consignee. The BEHRINGER ULTRAMATCH PRO requires one rack unit for installation in a 19" rack. Please allow for an additional 4" of rack depth for the rear panel connectors. For rack mounting, please use M6 metal nuts and bolts. Be sure that there is enough air space around the unit for cooling. For example, to avoid overheating, do not place the ULTRAMATCH PRO on power amps. ◊ Before you connect your ULTRAMATCH PRO to the mains, please make sure that your local voltage matches the supply voltage required by the unit! The fuse holder at the AC power connector has 3 triangular markings. Two of these three triangles will be aligned with one another. The ULTRAMATCH PRO is set to the voltage shown next to these markings and can be switched over by twisting the fuse holder by 180°. IMPORTANT: This does not apply to export models designed exclusively for 120 V operation! ◊ If you set the unit to a different mains voltage, be sure to use a fuse of the correct type and rating! In chapter 6 “Specifications” you will find the matching fuse type for your local mains voltage. The mains connection is made by using the enclosed power cord and a standard IEC receptacle. It meets all of the international safety certification requirements. ◊ Please make sure that all units have a proper ground connection. For your own safety, never remove or disable the ground conductor of the unit or of the AC power cord. ◊ Please ensure that only qualified persons install and operate the SRC2496. During installation and operation the user must have sufficient electrical contact to earth. Electrostatic discharges might affect the operation of the unit. 2. Control Elements 2.1 Front panel of the ULTRAMATCH PRO SRC2496 (1) (2) (3) Fig. 2.1: Front panel control elements (1) Monitor and input sections. The monitor section enables you to adjust the signal level applied to the analog input and features a controllable headphone connector. A clearly structured LED array provides you with detailed information on the various parameters of the digital input signal. (2) Mode section. Here, you can determine whether your ULTRAMATCH PRO is working as a sampling rate converter or A/D-D/A converter. (3) Output section. The buttons in the output section allow you to tailor the output signal to meet your requirements. Similarly to the input section, the display provides you with all the information on the output signal.

2.1.1 Monitor and input sections (4) (5) (7) (9) (11) (13) (15) (16) (8) (10) (12) (14) (19) (18) (21) (20) (23) (25) (22) (24) (26) (27) (28) (17) (6) Fig. 2.2: Input section control elements (4) 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. (5) 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 A/D-D/A converter, the digital input signal is applied to the analog output only in DIG IN mode (see (20), (21) ). (6) This is the stereo 1/4" TRS connector for your headphones. (7) The ANALOG IN and/or ANALOG OUT LEDs indicate which signal (input or output) is being displayed by the level meter. (8) The SOURCE switch routes the analog input or output signal to the level meter. (9) LEVEL METER. The signal shown here can always be monitored with the headphones. (9) (11) (13) (15) (16) (10) (12) (14) (19) (18) (21) (20) (23) (25) (22) (24) (26) (27) (28) (17) Fig. 2.3: Input section control elements (10) 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. (11) 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. (12) 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 (28) ). (13) 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. (14) 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. (15) The LEDs XLR, RCA and OPTICAL indicate the input activated by the user. 2.1.2 Mode section (4) (5) (7) (9) (11) (13) (15) (16) (8) (10) (12) (14) (19) (18) (21) (20) (23) (25) (22) (24) (26) (27) (28) (17) (6) Fig. 2.4: Mode section (16) 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. (17) Use the MODE switch to switch over between these two operating modes. 2.1.3 Output section (4) (5) (7) (9) (11) (13) (15) (16) (8) (10) (12) (14) (19) (18) (21) (20) (23) (25) (22) (24) (26) (27) (28) (17) (6) Fig. 2.5: Output section