XTD-33 INSTRUCTION MANUAL Digital Crossover Quality Cinema Products Ultra★Stereo Labs, Inc. • 181 Bonetti Drive San Luis Obispo, CA 93401 Telephone 805.549.0161 • e-mail usl@uslinc.
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC. One Year Limited Warranty ★★★★★ Ultra★Stereo Labs, Inc. warrants that each product manufactured by it will be free from defects in material and workmanship under normal usage for a period of one (1) year after its purchase new from an authorized dealer.
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC. Table of Contents Topic Page Introduction ............................................................................. 5 Scope of this Manual ...................................................... 5 Safety Notices ................................................................ 5 Unpacking ..................................................................... 6 Configurations and Options ...........................................
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC.
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC. Introduction General The XTD is designed as an easy-to-set-up, high performance digital crossover. It is designed to match the most commonly used speaker types currently produced by several manufacturers. The 96kHz sample rate, 24-bit resolution and flexible firmware assures it will meet the demands of future speaker designs.
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC. • Provide Proper Ventilation. The operating temperature should be between 0º C and 50º C. The humidity should be <90% at 40º C or below and <60% at 41º C to 50º C. The cooling method is by convection. • Keep Product Surfaces Clean and Dry. Disconnect the power cable from the power source before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning. • Do Not Push Objects Into Opening of this Product.
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC. Technical Specifications • Size: 1 unit Rack Mount (standard reference) 19" wide (including rack ears; 17.5" chassis only), 8" deep, 1.75" high • Weight: 8 lbs. • Electrical: AC mains 115VAC @ 1 Amp or 230VAC @ 1 Amp • Backup Power: 16VAC @ 750mA. A 115VAC wall mount AC adapter is supplied with the unit. (230VAC operation requires a stepdown transformer.) • Audio Inputs: 0dB ref.
THREE CHANNEL, THREE WAY DIGITAL CROSSOVER XTD-33 Ll Cl 1 Cm Ch Rl Rm Rh 34 56 3 34 56 PROGRAM SELECT 78 9A 2 DPU04 BYPASS MODE F 012 ON OUTPUT LEVEL ADJUST Lm Lh B C DE -8- B C DE F 012 8 LEFT Yellow = 0Db Ref CENTER RIGHT 4 SIGNAL INPUT 5 RS-232 XTD-33 Front Panel 6 POWER 7 ON Quality Cinema Products XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC.
-9- 8. Access Panel Cover - Protects the XTD settings and keeps the dust out. 7. Power Switch - Controls the primary power to the XTD. Must be On to operate in the Digital Mode. 6. Power LED - Under normal conditions, with the Power Switch On and no faults, the LED will be Green and the unit will be operating in the Digital Mode. If the unit is operating in the Bypass (analog) Mode, the LED will be Red and may indicate that servicing is required. 5.
1 2 115V Main Power 115/230 VAC 50/60Hz, 40VA 3 FUSE 1A 250V Emergency Bypass Power 16VAC 500MA WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. DO NOT REMOVE COVER. NO USER SERVICABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONELL. FOR CONTINUED PROTECTION AGAINS FIRE OR SHOCK HAZARD, REPLACE ONLY WITH THE SAME FUSE TYPE AND RATING.
- 11 - 7) Left Channel Outputs - Provides the signal outputs from the XTD in two or three bands as determined by the Program Select and Bypass Mode switches on the front panel. Balanced or Unbalanced signals may be used. In Unbalanced mode, the negative signal should be connected to signal ground (“E”). 6) Center Channel Outputs - Provides the signal outputs from the XTD in two or three bands as determined by the Program Select and Bypass Mode switches on the front panel.
XTD-33 INSTRUCTION MANUAL Input Buffers A/D Converters ULTRA★STEREO LABS, INC.
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC. Theory of operation Normal operation Under normal operation, the input signal is conditioned and converted from an analog waveform to digital information at a sample rate of 96 kHz (twice that of a normal music CD). The digital data is then processed in a single chip Digital Signal Processor (DSP) which analyzes the waveform, breaks the signal into the appropriate audio bands and impresses the desired acoustic curve onto the information.
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC.
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC. For 230VAC Operation: 1) Insert/verify a 1 amp fuse is in the fuse holder. 2) Insert the fuse holder into the IEC connector housing so that the “230” is correctly oriented and readable. 3) Insert the IEC power cord with the “Euro” plug into the IEC connector and the AC mains source 4) Emergency Power Supply - Plug the power adapter16VAC plug into the jack on the rear of the XTD. 5) Plug the power adapter into a stepdown transformer.
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC. Rear Panel Signal Input Connections Balanced Inputs The XTD has balanced inputs for the cleanest possible signal. For each channel, connect the audio source positive output to the positive input of the XTD. Connect the audio source negative output to the negative input of the XTD. Connect the cable shield only to the XTD signal ground (“E”) to minimize hum due to ground loops.
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC. Rear Panel Signal Output Connections Three-Way Crossover Connection - use all three output bands: Low, Mid, High Two-Way Crossover Connection - use only Low and High bands Balanced Outputs For each band in each channel, connect the XTD positive output to the positive input of the Amplifier. Connect the XTD negative output to the negative input of the Amplifier.
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC. Front Panel Controls • The only control designed to always be available is the Power Switch. In the ON position power is supplied via the AC Mains, the Power LED will be Green, the Digital Crossover section of the XTD is enabled, and the Analog crossover is disabled.
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC. Alignment Rm Rh BYPASS MODE PROGRAM SELECT 34 56 78 9A 78 9A DPU04 34 56 F 012 Rl F 012 Cm Ch ON Cl B C DE Lm Lh B C DE OUTPUT LEVEL ADJUST Ll Selecting Speaker Type CAUTION: Incorrectly setting the Speaker Type selector switches can damage speakers. Verify settings before activating amplifiers. 1) Turn the amplifiers off. 2) Turn the XTD off. 3) Use the chart in the Appendix to determine the setting that matches your speakers.
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC. 4) Adjust the output level of the Cinema Processor Left Output Level Control until the Channel Signal Level LED on the XTD just turns yellow (The Signal Level LEDs will be Green ± 0.5dB above or below 0dB, Yellow within ± 0.5dB of 0dB, and Red when above +23dB and in danger of clipping) 5) Repeat for the Center and Right Channels.
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC. Operation Normal Operation • Power Switch - During the first 15 seconds after the XTD is turned on, it will function in the Backup Mode and audio signals will be processed by the analog crossover. Once the system has stabilized and the firmware programs have been loaded, it will set itself to the configuration determined by the speaker selection switches. • Power LED - Should be green indicating normal operation.
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC.
XTD-33 INSTRUCTION MANUAL ULTRA★STEREO LABS, INC. Trouble Shooting • There is very little that can go wrong with the XTD except a failure of the fuse. Any other instance such as activation of the backup power system may require servicing the unit by USL or trained technician. • There are no user serviceable parts inside the unit. • Updating the XTD firmware requires special knowledge and training provided with the update package, please contact USL.
Quality Cinema Products © 2000 All Rights Reserved Ultra★Stereo Labs, Inc. 181 Bonetti Drive San Luis Obispo, CA, 93401USA. Telephone 805.549.0161 FAX 805.549.0163 e-mail: usl@uslinc.
