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Summary of Contents for miniDSP SPK-4P
- Page 1 SPK-4P DSP- IP S OMPACT ENABLED PEAKER SPK-4 UXILIARY ASSIVE PEAKER 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 First released version 4th June 2019 Updated for configurations/presets, added panel diagram June 2019 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
Possible Mac installation issues ......................15 2x4 HD plugin installation ........................15 Configuring the SPK-4P ............................. 16 Signal flow and processing overview ....................... 16 Synchronizing with the SPK-4P ........................ 17 Key features ............................. 18 5.3.1 Master control ..........................18 5.3.2 Configuration/preset selection...................... - Page 4 Filter file format ..........................33 5.8.4 Loading filter coefficients ........................ 34 Keyboard shortcuts ..........................34 Additional information ............................35 Specifications ............................35 Obtaining support ............................ 35 miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
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Page 5: Important Information
Warranty Terms miniDSP Ltd warrants this product to be free from defects in materials and workmanship for a period of one year from the invoice date. Our warranty does not cover failure of the product due to incorrect connection or installation, improper or undocumented use, unauthorized servicing, modification or alteration of the unit in any way, or any usage outside of that recommended in this manual. - Page 6 CE Mark Statement The SPK-4P has passed the test performed according to European Standard EN 55022 Class B. A Note on this Manual This User Manual is designed for reading in both print and on the computer. If printing the manual, please print double-sided.
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Page 7: Product Overview
Digital Signal Processor (DSP). A single CAT5/6 network cable provides power, low latency audio and control. Each SPK-4P provides two channels of power amplification, one for the internal driver and one for a connected SPK-4 auxiliary speaker module. -
Page 8: About Avb
Stream ID Unique 64-bit stream identifier used by AVB transport protocols to identify streams. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 9: Hardware Connectivity
SPK-4. AVB/ETH Used for AVB audio and SPK-4P configuration. It must be connected to an AVB-capable switch. If the switch provides PoE (Power over Ethernet), then the speaker is powered from this connector and the 12VDC connector is not used. -
Page 10: Avb Configuration - Mac Os X
Versions of OS X prior to 10.9 do not have inbuilt AVB support. While it may be possible to use third-party drivers, please note that miniDSP does not support operation of the SPK-4P with earlier versions of OS X. 3.1 E... -
Page 11: Configuring Multiple Spk-4P
4. Drop down the Window menu and select Audio Devices. Enabled AVB devices will appear as audio output devices in this window. Each miniDSP SPK-4P identifies as "AVB PoE+ Speaker". Select an SPK-4P to confirm its output properties: 3.2 C... - Page 12 2. Select the SPK-4P to include in the aggregate device: miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
- Page 13 Using the dropdowns, select the speaker and channel to be used for each virtual speaker. Click Apply and then Done to exit. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
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Page 14: Software Installation
If you purchased your product directly from miniDSP, your software will be available from the User Downloads section of the miniDSP website when your order ships. You will need to be logged into the website with the account you created when purchasing to access the download. -
Page 15: Mac
We recommend that you accept the default installation settings. To run the MiniDSP-2x4-HD plugin, locate it in the Applications -> miniDSP folder and double-click on it. To make it easier to run in future, right-click on its dock icon and select Options -> Keep in Dock. -
Page 16: Configuring The Spk-4P
These blocks include input gain, level metering, and parametric EQ. The processed input channels are fed into a 2-in 4-out routing matrix. In the SPK-4P, input channels 1 and 2 are usually routed directly to output channels 1 and 2. -
Page 17: Synchronizing With The Spk-4P
The “Connect” button will change as shown: Note: the Connect button is not used as a button with the SPK-4P. It simply acts as a status indicator. Once the plugin is connected to the SPK-4P, any changes subsequently made in the user interface will be downloaded immediately to the SPK-4P. -
Page 18: Key Features
Configurations can be saved to and loaded from files. Each configuration is stored in a separate file. It is very strongly recommended that each configuration programmed into the SPK-4P be saved to a file, to ensure that the configuration is not lost if the SPK-4P is inadvertently reset. -
Page 19: Restoring To Defaults
5.3.5 Local configuration storage When the Search box is used to connect to a SPK-4P, the previously used settings for that speakers are loaded into the user interface. Note that these are not being loaded from the speaker but are stored locally in XML files on the computer. -
Page 20: Input Channel Strips
23. Mute Press this button to mute that input channel. The button color and label changes to show that the channel is muted. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 21: Routing
Changing the channel labels on the control strips changes them on the routing matrix, as an aid to ensuring correct configuration. This is the typical routing that will be used with the SPK-4P: At each cross-point, the gain of the signal being mixed can be adjusted to a value between -72 and +12 dB. To adjust the gain, right-click on the cross-point and a gain control will appear. -
Page 22: Output Tab
Current Gain text box. The maximum gain setting is 12 dB, and the minimum gain setting is –72 dB. (0 dB, the default, is unity gain or no change in level.) miniDSP Ltd, Hong Kong / www.minidsp.com... -
Page 23: Parametric Eq
To link a channel, select the other channel from the drop-down menu at the top left of the PEQ screen, and click the Link checkbox. miniDSP Ltd, Hong Kong / www.minidsp.com... - Page 24 “BYPASSED” (see screenshot below). Note that this button only enables and bypasses a single filter; all other filters must be bypassed or enabled individually. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
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Page 25: Crossover
The current channel is displayed in orange, with the others displayed in grey. Hovering the mouse over the curve brings up an overlay showing the frequency and the attenuation at that frequency. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... - Page 26 To link a channel, select the other channel from the drop-down menu at the top left of the Xover screen, and click the Link checkbox. miniDSP Ltd, Hong Kong / www.minidsp.com...
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Page 27: Compressor
The optimum settings may need to be tuned by ear. For more information, see the Wikipedia article Dynamic range compression. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 28: Fir
(0.01 ms) increments. The maximum time delay of 80 ms corresponds to a distance of approximately 27.5 meters (about 90 feet). The time delay corresponds to a distance. This distance is shown in centimeters below the entry box. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice... -
Page 29: Custom Biquad Programming
Custom biquad programming is available in the PEQ and Crossover blocks. Its purpose is to allow you to directly provide the low-level parameters aka biquad coefficients that control the digital filters of the SPK-4P, thus providing an almost infinite degree of flexibility. - Page 30 If the file contains more than ten biquads, then an error will be reported and no filters will be changed. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
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Page 31: Biquad Design Software
It includes the ability to automatically generate a bank of parametric EQ biquads based on a measurement. These coefficients can be saved to a file from REW and loaded directly into a PEQ bank in a miniDSP plugin. Room EQ Wizard can be downloaded here: •... -
Page 32: Fir Filtering And Design
5.8 FIR FILTERING AND DESIGN FIR filtering is a powerful and advanced feature of the SPK-4P. It allows construction of complex arbitrary equalization and crossover filters with independent control of amplitude and phase. The parameters of each FIR filter are set in the FIR settings window: Browse Opens a file browser to select a file containing FIR filter coefficients. -
Page 33: Fir Filtering Overview
IIR filter requires only a fairly small of values to be specified. These numbers are conventionally referred to as "taps." The SPK-4P can compute a total of 4096 taps. These taps can be distributed as you wish across the four output channels, with the limitation that each output channel must have 6 or more taps and can have no more than 2048 taps. -
Page 34: Loading Filter Coefficients
5.9 K EYBOARD SHORTCUTS The miniDSP-2x4-HD plugin supports the use of the keyboard for many operations. The Tab key moves the focus from the current user interface element to the next. A blue-grey surrounding box usually indicates the user interface element with the focus. Shift-Tab moves the focus in the opposite direction. -
Page 35: Additional Information
125 x 125 x 131mm Weight 1.3 kg 6.2 O BTAINING SUPPORT 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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