Funktion-one XO-1 User Manual

Dsp based audio processor

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XO-1 Users Manual

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Summary of Contents for Funktion-one XO-1

Page 1 XO-1 Users Manual...
Page 2: Xo1 Quick Reference
XO1 Quick Reference Accessing channels: Use channel’s SELECT button. First press accesses that channel’s gain. Second press accesses last viewed parameter. Third press will drop back to the default screen. To scroll through a channel’s parameters, use the BACK and NEXT keys. Accessing menus: Press the MENU key, then the BACK and NEXT keys to find the sub-menu...
Page 3: Table Of Contents
Contents XO1 Quick Reference The Menus and their Contents Notes Contents Important Safety Information Thanks Unpacking the XO1 Introduction Features Front Panel Familiarisation Rear Panel Connections Operating the XO1 Preliminary Set-up XO1 Configurations Introduction 2 x 2 way with Mono Sum 2 x 3 way 4 way + 2 5 way + 1...
Page 4 System Sub-Menu System Status LCD Contrast LED Brightness Temperature Alarm Wake-up Time Output Meters Filter Q or BW Delay Time/Distance Interface Sub-Menu Interface Setup AES / EBU Sub-Menu Routing Options AES Diagnostics AES / EBU Connections Operating Notes Operating Level Grounding Crossover Filter Slopes Time Alignment...
Page 5: Important Safety Information
An example of this equipment has been tested and found to comply with the following European and international Standards for Electromagnetic Compatibility and Electrical Safety: Radiated Emissions (EU): EN55013-1 (1996) RF Immunity (EU): EN55103-2 (1996) RF Immunity, ESD, Burst Transient, Surge, Dips &Dwells Electrical Safety (EU): EN60065 (1993)
Page 6: Thanks
Thanks Thank you for choosing the XO1 for your application. Please spend a little time reading through this manual, so that you obtain the best possible performance from the unit. All our products are carefully designed and engineered for cutting-edge performance and world-class reliability.
Page 7: Introduction
Introduction The XO1 is a powerful DSP based audio processor, ideally suited for live sound applications, where it combines the functions of a multitude of conventional products in a compact 1U unit. To achieve this, the XO1 has two inputs and six outputs which can be configured in five basic crossover modes –...
Page 8 Each output features variable high and low pass filters, with a choice of 12, 18 or 24dB/Octave roll-off, and Butterworth, Bessel or Linkwitz-Riley responses. Independent control of each high and low pass filter allows asymmetric crossover bands to be created. Delay of up to 650mS may be independently set for each output, with an exceptionally fine minimum increment of 2.6µS.
Page 9: Front Panel Familiarisation
Front Panel Familiarisation LCD Screen : shows menu options, channel information, and various parameters as they are adjusted. Next Key : moves forwards through the list of available parameters. Back Key : moves back through the list of available parameters. Menu Key : activates the main menu.
Page 10: Rear Panel Connections
Rear Panel Connections Power Switch: turns the units mains supply off and Mains Fuse: located in a finger-proof holder adjacent to the mains inlet. A spare fuse is also located in this holder. Mains Inlet: connected via a standard IEC socket. External: RS232 standard via a 9 pin D-type connector, for connection to a PC, enabling the...
Page 11: Operating The Xo1
Operating the XO1 Preliminary Set-up The procedure below should be followed when first installing a XO1. Design your crossover! To do this, press MENU, and use the BACK or NEXT key to select ‘X-over sub-menu’ and then press ENTER. Use the BACK or NEXT key to select ‘Design a X-over’...
Page 12: Xo1 Configurations
XO1 Configurations Introduction To simplify the set-up of the XO1, 5 crossover modes are selectable from the X-over sub-menu. These all have parametric equalisers, high and low pass filters, gain controls, delay and limiters. The following set of diagrams detail how each of the five modes is internally configured.
Page 13: X 3 Way
2 x 3 way This format feeds input A to outputs 1, 2, and 3 designated low, mid, and high respectively. Input B feeds outputs 4, 5, and 6, as low, mid, and high respectively. Note that this configuration, as with the 2 x 2 way, can have the outputs ganged for stereo operation.
Page 14 4 way + 2 This format feeds input A to outputs 1, 2, 3, and 4 designated low, lo-mid, hi-mid and high respectively. Outputs 5 and 6 are configured as auxiliaries, with their source being either input B, or the sum or inputs A and B. XO1 Operators Manual Page 13...
Page 15 5 way + 1 This format feeds input A to outputs 1, 2, 3, 4, and 5 designated sub, low, lo-mid, hi- mid and high respectively. Output 6 is configured as an auxiliary, with the source being either input B, or the sum or inputs A and B. Page 14 XO1 Operators Manual...
Page 16: Way
6 way This format feeds input A to all outputs designated lo-sub, through high, 1 to 6 respectively. XO1 Operators Manual Page 15...
Page 17: Screen Layouts Overview
Screen Layouts Overview Page 16 XO1 Operators Manual...
Page 18: Gain Screen
Audio Function Screens Gain Screen To adjust the gain: Use the ‘GAIN’ control. Each input and output has an individual gain screen. The inputs have a range of +6dB to –40dB, adjustable in 0.1dB steps and the outputs have a range of +15dB to – 40dB, again adjustable in 0.1dB steps.
Page 19: Polarity Screen
Polarity Screen To adjust the polarity: Use the ‘GAIN’ control to switch between + and -. Each output has an independent polarity screen. This gives the flexibility to reverse (flip by 180q) the phase of individual outputs. Note: When the outputs are ganged, the polarity screens remain individual.
Page 20: Delay Screen
Delay Screen To adjust delay settings: Use the ‘FREQ’ control for coarse control. (1mS steps) Use the ‘Q’ control for fine control. (2.6PS steps) Each input and output has an independent delay time control. Input delay (base delay) is adjustable in 1mS steps. Output delay is adjustable in 2.6PS steps or in 1mS steps giving complete control over driver time alignment.
Page 21: High And Low Pass Filter Screens
High and Low Pass Filter Screens To adjust HPF/LPF settings: Use the ‘FREQ’ control for the frequency. Use the ‘Q’ control for the slope. Each output has an independent high pass filter and an independent low pass filter. Both filters have a range of selectable slopes, which are Bessel 12dB, 18dB and 24dB, Butterworth 12dB, 18dB and 24dB, and Linkwitz-Riley 24dB.
Page 22: Parametric Equaliser Screen
Parametric Equaliser Screen To adjust parametric settings: Use the ‘FREQ’ control for the frequency. Use the ‘Q’ control for the Q. Use the ‘GAIN’ control for the gain. Each parametric section can be positioned at a frequency from 20Hz to 20kHz and features a wide range of 'Q’s to produce response curves ranging from broad to notch.
Page 23: Limiter Screen
Limiter Screen To adjust limiter settings: Use the ‘FREQ’ control to adjust the attack time. Use the ’Q’ control for the release time. Use the ‘GAIN’ control for the limiter threshold. Each output has an independent high performance limiter. All limiters have an attack range of 0.3mS to 90mS, release times are 2, 4, 8, 16 and 32 times the attack time and thresholds range from +22dB to –10dB in 1dB steps.
Page 24: Menu Selection
Menu Selection The following menu selections are available: Xover Sub-menu: Load a Xover – loads a pre-defined crossover. Design a Xover – starts the set-up wizard for designing a new crossover. Store a Xover – stores all output settings as a defined crossover. Erase a Xover Mem.
Page 25: Input Setup Sub-Menu
Input Setup Sub-menu There is one option in this menu: Gang Inputs Gangs A and B inputs so that precise adjustments can be made to both inputs simultaneously, the LCD will show A+B. All adjustments are now absolute and any adjusted parameters on both channels will become identical .
Page 26: X-Over Sub-Menu
X-over Sub-Menu Load a Xover Loads a stored crossover from the selection available. Enter accepts the selected name and loads immediately. Design a Xover Opens a wizard to design a crossover. Options include format type, ganging of outputs, routing and automatic limiter time constants. The table below outlines which options are available dependant on what type of crossover is chosen for the design.
Page 27: Security Sub-Menu
Security Sub-Menu After selecting the ‘Security Sub-Menu’ and pressing ENTER, select one of the lock types, after choosing the most appropriate one for your application. As ever, ENTER will confirm your selection. User Specific Upon pressing ENTER to select this type of lock, each parameter group is presented in turn.
Page 28: Entering The Password To Complete The Locking Operation
Entering the Password to Complete the Locking Operation After selection of the lock type from the list above, a four-digit security code will be asked for. This can be entered by using the ‘FREQ’ control to select a character, and the ‘BACK’...
Page 29: System Sub-Menu
System Sub-Menu System Status Displays unit information including software version and temperature. Curr. Temp. = current temperature in degrees Celsius. Max1. Temp. = maximum temperature this session. Max2. Temp. = maximum temperature ever reached. LCD Contrast Adjusts the LCD contrast from 0 to 100. LED Brightness Adjusts the LED brightness from 1 to 15.
Page 30: Interface Sub-Menu
Interface Sub-Menu Interface Setup If the interface is enabled, the option will become available to select the baud rate. This must be set to match that on the PC to be used for the program update. Typically, the set-up would be as below. XO1 Operators Manual Page 29...
Page 31: Aes / Ebu Sub-Menu
AES / EBU Sub-Menu Connection of AES/EBU signals is via the existing rear panel XLR connectors. With the AES/EBU option fitted, AES Receive and Diagnostic modes are provided. Routing Options Selects the input source – either analogue or digital, and similarly the output source, again either analogue or digital.
Page 32: Operating Notes
Operating Notes Operating Level With any audio signal processing equipment it is necessary to ensure adequate signal level is used through the device, to avoid sacrificing noise performance. It is suggested that the operating level chosen should give adequate level to just light the -12dB LED on the headroom meter with maximum program level being used.
Page 33: Crossover Filter Slopes
Crossover Filter Slopes Please consult the block diagrams on page 11 for details of the various configurations available. All crossover modes feature adjustable crossover frequencies with a choice of slopes, 5 bands of driver compensation E.Q. per output and delay time plus limiters for each output.
Page 34: Output Limiters
Output Limiters High performance digital limiters are provided for each output with control over attack time, release time and threshold level parameters - see page 22 for details. This level of control allows the user to balance the required subjective quality of the limiter against the driver protection requirements.
Page 35: Setting Accurate Limiter Thresholds
Setting Accurate Limiter Thresholds The limiters built into the XO1 are intended to be used for for loudspeaker driver protection, as opposed to amplifier protection. All modern professional power amplifiers designed for live sound use have their own limiters which are tailored to protecting the amplifier from clipping.
Page 36 First, check the RMS power rating of the speaker system, and its impedance. Look up this value in the table above, using the closest value below the rated power of the speaker system. Note the corresponding ‘dB’ value. Check the gain of your amplifier, which needs to be in ‘dB’. Subtract this gain figure from the dB value obtained from the table to find the required absolute setting for the limiter thresholds.
Page 37: Specifications
Specifications Inputs: 2 electronically balanced‹ High and Lowpass Filters Impedance: > 10k ohms. Filters: 1 of each per output. CMRR : >65dB 50Hz - 10kHz. Freq. Range HPF: 10Hz - 16kHz 1/36 octave steps. Outputs: 6 electronically balanced‹ Freq. Range LPF: 35Hz - 22kHz Source Imp: <...
Page 38: Warranty
Warranty This product is warranted against defects in components and workmanship only, for a period of one year from the date of shipment to the end user. During the warranty period, XTA will, at it's discretion, either repair or replace products which prove to be defective, provided that the product is returned, shipping prepaid, to an authorised XTA service facility.
Page 39: Appendices
Appendices Appendix 1: Limiter threshold in dB to Vrms lookup table. Vrms Vrms 9.75 1.38 8.69 1.23 7.75 1.09 6.90 0.98 6.15 0.87 5.48 0.77 4.89 0.69 4.36 0.62 3.88 0.55 3.46 0.49 3.08 0.44 2.75 0.39 2.45 0.35 2.18 0.31 1.95 0.27...
Page 40: Appendix 2: Default X-Over Settings And Names For All Formats
Appendix 2: Default X-over settings and names for all formats. X-over Output 1 Output 2 Output 3 Output 4 Output 5 Output 6 High High Msub 2x2 way+Ms 120Hz – 1k82Hz 1k82Hz – 22kHz 120Hz – 1k82Hz 1k82Hz – 22kHz 24.8Hz – 120Hz <10Hz – 22kHz High High 2 x 3 way...
Page 41: Appendix 3: Equalisation Curves
Appendix 3: Equalisation Curves Parametric Filter Gain Curves Parametric Filter ‘Q’ Curves Parametric Filter High and Low Shelving Responses Page 40 DXO1Operators Manual...
Page 42: Xo1 Operators Manual Page
Parametric Filter High ‘Q’ – Notch Filter Response High Pass Filter Response Curves Low Pass Filter Response Curves XO1 Operators Manual Page 41...