Manual -4 -7 POWER Variable Output 9/10 11/12 13/14 15/16 Mono Mono Mono Mono Expansion Input 5 -13 7/8 Mono -14 5/6 Mono 7 3/4 Mono 3 Discrete Class A 16 in 2 summing mixer 1/2 Mono -12 0 MixDream XP dB Output Model 2591 MixDream XP Model 2591 Analog 16:2 summing unit
Manual MixDream XP Model 2591 Version 1.0, 5/2005 Designer: Ruben Tilgner This manual contains a description of the product. It in no way represents a guarantee of particular characteristics or results of use. The information in this document has been carefully compiled and verified and, unless otherwise stated or agreed upon, correctly describes the product at the time of packaging with this document.
Contents Introduction .................................................................... Analog vs. Digital Summing ............................................ 4 4 Advantages And Special Features ................................... MixDream XP Advantages—An Overview ......................... Connection of Samplers, Keyboards etc. ......................... Mono Switches ................................................................ 5 5 5 5 Before You Begin ...........................................
Introduction The MixDreamXP design plan provides for stereo mixdown at the analog level. This concept offers high-grade analog summing without panorama and fader controls, in turn allowing an engineer to retain the entire scope of his computer automation. In use, the MixDreamXP requires almost no departures from an engineer‘s usual working mode, so that all his trusted DAW features and familiar working routines remain available while the MixDreamXP seamlessly expands his aural mixing palette.
Advantages MixDreamXP Advantages—An Overview • High-grade analog summing on just 1U rack space for amazing signal depth, precise localization and a wonderful stereo imaging • No analog mixing console necessary • No loss of computer automation • Lower DAW processor utilization rates • Latency free monitoring • Surround capable (from up to 3 MixDream XP units) • Channel capacity expandable through linked units • Cost-effective expansion for the MixDream model 2384 Special Features Connection of Sampler, Keyb
Before You Begin It makes good sense to think about where you place your MixDream XP before connecting it. It should be positioned so that you can easily reach it, but there are other considerations. Try not to place it near heat sources or in direct sunlight, and avoid exposure to excessive vibrations, dust, heat, cold or moisture. It should also be kept away from transformers, motors, power amplifiers and digital processors.
VOLTAGE/FUSE 230 V – 50 Hz/315 mA 115 V – 60 Hz/630 mA GND LIFT Left Monitor Outputs Right Mono 3/4 Mono 5/6 Mono 7/8 Mono Variable Output dB -4 Output -7 Mono 9/10 Expansion Mono 11/12 Mono 13/14 Input Channels 9 to 16 WARNING Mono 15/16 TO REDUCE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. DISCONNECT MAINS BEFORE REMOVING COVER. THIS EQUIPMENT MUST BE EARTHED. 5 Expansion Input SERIAL No.
Rear Panel/Connections General Advice The MixDream XP enclosure is EMC-safe and effectively shielded against HF interference. Nonetheless, you should carefully consider where you place the unit to avoid electrical disturbances. The MixDream XP and all devices to be connected should be turned off before connections are made. Always turn volume down or mute your speakers when disconnecting or repatching audio cables to avoid damage to your speakers and ears.
Rear Panel/Connections Main Outputs The Main Outputs provide a stereo mixdown for a recording device through electronically balanced XLR outputs. Here as a rule you will route the stereo mix through an A/D converter for re-recording as a new DAW track. Monitor Outputs The Monitor Outputs run parallel with the Main Outs and provide for separate monitoring of the stereo mixdown through electronically balanced XLR outputs.
Control Elements Output Control -4 -7 3 -12 0 -13 5 7 dB -14 Output The Output control regulates the MixDreamXP output level (at the Main Outs). Its range extends from -14 dB to +7 dB. With this Output Control final levels can be ajdusted to accommodate subsequent A/D converters. Because the Main Outputs and Monitor Outputs run in parallel, both outputs are regulated globally via this control.
Control Elements GND Lift Switch (Rear Panel) The GND Lift switch separates internal ground from chassis ground. The switch can be activated to eliminate ground loop humming which may occur if the MixDreamXP is connected to units with a different ground potential. The switch should normally be in the GND position to maintain the shielding effect of the metal housing.
Applications and Modes of Operation MixDream XP in Mastering Applications Your MixDreamXP is predestined for mastering applications, as we‘ve planned its superior sound quality for just such occasions. Two applications are especially interesting: 1) discrete Mastering, and 2) upsampling to SACD/DVD-A formats. 1) Normally a studio mastering engineer requires that a stereo file be made available for his or her work.
3/4 5/6 Mono 7/8 Mono Variable Output dB -4 Output -7 6 5 3 4 1/2 3/4 Mono 3/4 Mono 3/4 Mono 3/4 Mono 5/6 Mono 5/6 Mono 5/6 Mono 5/6 Mono Mono 11/12 7/8 Mono 7/8 Mono 7/8 Mono 7/8 Mono Mono 13/14 Variable Output Variable Output Variable Output Variable Output Mono 15/16 Expansion Input WARNING 2 dB -4 dB -4 dB -4 dB -4 3 Output -7 Output -7 Output -7 Output -7 Mono 9/10 Mono 9/10 Mono 9/10 Mono 9/10 Mono 11/12 Mono 11/12 Mono 11/1
Block Diagram 14
Measurements Frequency Response,FFT Spectrum Analysis Audio Precision Frequency Response 2591 MixDream XP 05/09/05 14:48:13 Expansion Input, Fix Output +10 Well, we think this is „linear frequency response“ in the word‘s best possible sense: even at 200kHz the fall-off is below -1dB. And mind you, typical frequency response measurements are related to a -3dB fall-off.
Power Supply No effort or expense was spared here. We don’t know of anyone who makes good coffee with great beans and bad water, and we don’t know of anyone who makes great sounding audio equipment with mediocre power supplies. The best parts cannot give you a sound without dependable power. The MixDreamXP is equipped with an internal power supply.
Specifications Frequency range: ‹ 1Hz-200 kHz (-1 dB) THD+N: -103 dBu 20-22kHz, Input Level +10 dBu Noise Level: -97 dBu 20-22kHz, A-weighted Max. Input Level: +28 dBu Max.
Guarantee SPL products are guaranteed for a period of one year against faults in materials or workmanship. Refer to your local supplier for full sales and guarantee terms.
