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Summary of Contents for miniDSP PWR-ICE125
- Page 1 PWR-ICE125 PWR-ICE250 DSP- CONTROLLED PLATE AMPLIFIER User Manual miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
- Page 2 Revision history Revision Description Date V1.0 Initial revision 28-06-2013 V1.1 Updated typo on wiring 24-07-2013 V2.0 Merged PWR-ICE125 and PWR-ICE250; completely revised 31 August 2016 miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
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Page 3: Table Of Contents
Parametric EQ, crossover, and compressor/limiter ..............28 4.10.4 Mute ............................29 4.10.5 Invert ............................29 4.10.6 Time delay ..........................29 4.11 Working with configurations ......................30 miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... - Page 4 PWR-ICE125 ..........................41 6.2.2 PWR-ICE250 ..........................43 6.2.3 Additional mounting considerations ................... 45 Troubleshooting ..........................46 MCU Firmware upgrade ........................47 Obtaining Support ..........................47 miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
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Page 5: Important Information
MPORTANT NFORMATION Please read the following information before use. In case of any questions, please contact miniDSP via the support portal at minidsp.desk.com. YSTEM EQUIREMENTS To configure the PWR-ICE amplifiers, you will require a Windows PC or Apple Mac OS X computer with the... -
Page 6: Disclaimer/Warning
ISCLAIMER ARNING miniDSP cannot be held responsible for any damage that may result from the improper use of this product or incorrect configuration of its settings. As with any other product, we recommend that you carefully read this manual and other technical notes to ensure that you fully understand how to operate this product. The PWR-ICE amplifier is a powerful tool, and misuse or mis-configuration, such as incorrectly set gains or excessive boost, can produce signals that may damage your audio system. -
Page 7: Safety Instructions
4. The amplifier has been dropped or suffered damage in any other way, 5. The amplifier exhibits a distinct change from its normal function or performance. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... - Page 8 Disconnection from the mains power supply can only be achieved by removing the plug from the mains socket and by external disconnection of all poles from the mains. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
- Page 9 IMPORTANT: Always connect the Product to mains through the MAINS IN connector on the Amplifier Unit. DO NOT REMOVE MAINS CONNECTOR GROUND, IT IS ILLEGAL AND DANGEROUS. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
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Page 10: Product Overview
This version of the PWR-ICE amplifier uses the ICEpower® 125ASX2 power amplification module, together with miniDSP’s input and DSP hardware. Delivering up to 125 Watts per channel or a total of 450W in BTL mode, it is ideal for applications such as medium-powered two-way loudspeakers and subwoofers. -
Page 11: Installation And Setup
When your order ships, the PWR-ICE2-2x2 plugin will be available for download from the User Downloads section of the miniDSP website. This link is visible when you have logged into the site with the account you created when purchasing. Navigate to the PWR-DSP/PWR-ICE software section of User Downloads, then download the zip file under the heading PWR-ICE 2x2 plug-in - Mac&Windows support. -
Page 12: Mac Os X
If you haven’t updated these recently, you should download and install the latest versions prior to running the miniDSP installer. To install the miniDSP software, open the Mac folder of the download, and double-click on the PWR_ICE2_2x2.dmg file to open it in a new window. Then double-click on the installer program, Install PWR- ICE2-2x2.app. -
Page 13: Hardware Connectivity
To prevent electric shock, do not operate the product with any of the conductor portion of the speaker wire exposed. The PWR-ICE125 operates at hazardous voltage. For this reason, you should never operate the plate amplifier and touch the rear of the unit. -
Page 14: Main Panel
AIN PANEL Connections are made on the main panel, with the exception of the speaker outputs. (The PWR-ICE125 is shown here – the PWR-ICE250 is the same but longer.) miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 15: Ac Power
The PWR-ICE 125 must be configured for the correct AC voltage. Our team will “pre-configure” the module based on your choice in the shopping cart, but make sure to double-check before powering on the amplifier. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 16: Analog Audio Input
The input sensitivity of the analog inputs can be changed with jumpers on the DSP board. There are three jumpers for each channel, and all jumpers for each channel must be set the same (i.e. all three open or all three closed). miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 17: Digital Audio Input And Link/Passthrough (Aes/Ebu)
If the amplifier is set to analog input, there is no signal on the digital link out. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 18: Ethernet
Ethernet cable. In this case, auto-IP (link-local) addresses will be assigned. For this to work correctly, your PC must be set to allow automatic IP addresses (that is, it must not be set to a static IP address). miniDSP Ltd, Hong Kong / www.minidsp.com... -
Page 19: Speaker Connections
Either channel can have the analog output signal reduced by 16 dB by opening a jumper on the rear of the DSP board. This is used in situations such as a two-way loudspeaker with a sensitive tweeter. miniDSP Ltd, Hong Kong / www.minidsp.com... -
Page 20: Configuring The Pwr-Ice Amplifiers
Lists all amplifiers detected on the local area network. Master mute Mutes all audio from the amplifier. Main control window Contains all of the audio processing and control screens. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 21: Connecting To A Pwr-Ice Amplifier
The first time you connect to an amplifier, we recommend that you go to the Restore menu and select the Factory Default option. This will ensure that all configurations are set to a proper initial state. miniDSP Ltd, Hong Kong / www.minidsp.com... -
Page 22: Renaming A Device
Turn the power to the amplifier off, wait a few seconds, and then turn the amplifier back on. After renaming the connected amplifiers, they will appear in the device tree with their new names. You can then click on each to complete configuration. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 23: Configuration Selection
The PWR-ICE amplifier accepts either analog or digital input. Use the dropdown selector to choose the appropriate type. The connected cabling and signals must match the selected input type. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 24: Channel Mode
2-ch. The input channel strips at the left of the plugin user interface change depending on the selected channel mode: miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 25: Amplifier Mode
The output channel strips at the right of the plugin user interface change depending on the selected amplifier mode: The physical connections to the speaker output terminals must be consistent with the selected amplifier mode. See page 19. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 26: Mode Combinations
This is the most common configuration when the PWR-ICE amplifier is used to power a subwoofer. The whole amplifier drives a single subwoofer driver with the (filtered) sum of the left and right input channels. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 27: Input Channel Configuration
4.9.3 Parametric EQ Each input channel has a parametric EQ block with 12 parametric filters. See the section Parametric EQ for full details. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 28: Output Channel Configuration
Each output channel has an independent parametric EQ block with six parametric filters, a crossover, and compressor/limiter. See Signal processing functions for full details. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 29: Mute
Time delay can be calculated from distance using one of the following formulae: (Time delay in ms) = (Distance in cm) / 34.4 (Time delay in ms) = (Distance in inches) / 13.54 miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 30: Working With Configurations
4.11.2 Synchronization options When the plugin detects an inconsistency between the local state and the amplifier state, it brings up this dialog: miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 31: Saving And Loading Configurations
If the plugin is offline, the configuration data will be loaded into the user interface only. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 32: Restoring To Defaults
The Space bar toggles buttons that have two states, such as Bypass, Invert, and Mute. If the focus is on a control button such as PEQ, Xover, or Comp, the Space bar opens the relevant control screen. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 33: Signal Processing Functions
A peaking filter with 6 dB boost, centered at 2 kHz A high-shelf filter with 6 dB cut (gain set to a negative value), centered at 10 kHz miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... - Page 34 Auto-EQ tuning with REW and the section Custom biquad programming. For the PWR-ICE amplifier, the REW auto-EQ must have the equalizer type set to “miniDSP-96k”. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
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Page 35: Crossover
Sets the nominal cutoff frequency of the crossover. In actual fact, of course, the crossover has a more or less gradual transition from “full on” to “full off,” as determined by the filter slope. miniDSP Ltd, Hong Kong / www.minidsp.com... -
Page 36: Compressor
Ratio parameter. This can be used to limit the power delivered to speakers and thus reduce the risk of damage from overdriving. This screenshot shows an example Compressor setting: miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 37: Custom Biquad Programming
A single biquad like this can perform a great many functions, including all of the functions of a single parametric EQ filter, one 6 or 12 dB/octave high pass or low pass filter, and more. Biquads are combined in series miniDSP Ltd, Hong Kong / www.minidsp.com... -
Page 38: Using Custom Biquad Programming
Basic mode. In Advanced mode, all eight biquads need to be specified. After pasting in the biquad coefficients, click on the Process button for them to take effect. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 39: Biquad Calculation Spreadsheet
Therefore, to use a mixture of REW-generated filters and manually set filters, put your manual setting in filters 7 through 12. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 40: Additional Information
2. 1% THD+N 20Hz < f < 20kHz. (AES17 measurement filter). Specification provided by ICEpower. See ICEpower datasheets for 125ASX2 and 250ASX2 for full specifications. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 41: Mounting Dimensions
6.2 M OUNTING DIMENSIONS 6.2.1 PWR-ICE125 Figure 1. PWR-ICE125 plate dimensions and mounting hole locations miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... - Page 42 Figure 2. PWR-ICE125 recommended cutout dimensions (red outline) miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
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Page 43: Pwr-Ice250
6.2.2 PWR-ICE250 Figure 3. PWR-ICE250 plate dimensions and mounting hole locations miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... - Page 44 Figure 4. PWR-ICE250 recommended cutout dimensions (red outline) miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
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Page 45: Additional Mounting Considerations
(For example, if a subwoofer has a sufficiently large port, ensure that it is not possible to insert a hand and touch the high voltage parts. (See page 13.) miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 46: Troubleshooting
Adobe Air environment most likely requiring a version update. Software running in Connect your PC to the Internet to automatically get an background but not update. showing miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 47: Mcu Firmware Upgrade
PDF file. 6.5 O BTAINING UPPORT 1. Check the forums on miniDSP.com to see if this issue has already been raised and a solution or solutions provided. 2. Contact miniDSP via the support portal at minidsp.desk.com with: a.
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