Instruction/ maintenance manual of the product SPA-1400 Crate Amplifiers
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User ’ s Guide for the CRA TE PRO AUDIO SP A-1400/1400C Rack Mount Power Amplifier In order to achieve maximum performance from your new Crate Pro Audio SP A Series Power Amp we recommend that you read this user ’ s guide prior to its use.
2 Contents: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Front Panel Information . . . . . . . . . . . . . . . . . . .
3 Introduction: Congratulations. Y ou have selected one of the finest pieces of sound reinfor cement equipment available, the Crate Pro Audio SP A-1400/1400C Rack Mounted Amplifier .
4 Front Panel Information: 1 4 3 2 2 3 4 5 6 7 1: COOLING F AN EXHAUST VENT : The SP A-1400/1400C employs a pair of variable-speed internal cooling fans to draw air through the unit and keep it running cool even under extreme operating conditions.
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SP A-1400/1400C Rack Mount Power Amplifier ( SP A-1400C ONL Y ) 18 19 20 21 22 23 21 19 18 20 24 18: BALANCED THRU/X-OVER OUT JACKS: These male XLR jacks are independently switchable and have two uses.
7 SP A-1400/1400C Rack Mount Power Amplifier Speakon ® is a registered trademark of Neutrik USA Speaker Impedances And Power Ratings: When connecting speaker cabinets, you must observe proper load impedances.
8 Installation and Operation: Stereo Operation : The SP A-1400/1400Ccan be used in the Stereo Mode as two separate power amplifiers, each capable of driving loads down to 2 ohms.
9 SP A-1400/1400C Rack Mount Power Amplifier Speakon ® is a registered trademark of Neutrik USA Installation and Operation: Main/Monitor Combinations: Another application of the Stereo Mode (see page 8) is using one channel of the amplifier for the house speakers and the other for the monitors.
10 SP A-1400/1400C Rack Mount Power Amplifier Speakon ® is a registered trademark of Neutrik USA Installation and Operation: Parallel Mono Operation: The two internal power amplifiers (channel 1 and 2) can easily be driven by a single input signal. Connect the input sig- nal to channel 1 and press in the P ARALLEL MONO SWITCH (#16).
11 SP A-1400/1400C Rack Mount Power Amplifier Speakon ® is a registered trademark of Neutrik USA Installation and Operation: Bridged Mono Operation: The two internal power amplifiers can be bridged together to form a single, higher -powered amp.
12 SP A-1400/1400C Rack Mount Power Amplifier Speakon ® is a registered trademark of Neutrik USA Installation and Operation: Patching T wo Bridged Mono Mode Systems: T wo Bridged Mono amplifiers can be patched together by connecting a signal cable between their input jacks (the dashed line in the illustration below).
13 SP A-1400/1400C Rack Mount Power Amplifier Speakon ® is a registered trademark of Neutrik USA Installation and Operation: Connecting Multiple Amplifiers (SP A-1400C only): A single signal may be passed along to multiple amplifiers by using the BALANCED THRU/X-OVER OUT jacks.
14 SP A-1400/1400C Rack Mount Power Amplifier Speakon ® is a registered trademark of Neutrik USA Installation and Operation: Biamping: SP A-1400 – One Amp, Single Cabinet: One SP A-1400 can be used to separately power the lows and highs of a cabinet with biamp inputs.
15 SP A-1400/1400C Rack Mount Power Amplifier Speakon ® is a registered trademark of Neutrik USA Installation and Operation: Biamping: SP A-1400 – One Amp, Separate Cabinets: One SP A-1400 can be used to power separate low and high frequency cabinets.
16 SP A-1400/1400C Rack Mount Power Amplifier Speakon ® is a registered trademark of Neutrik USA Installation and Operation: Biamping: SP A-1400C – One Stereo Amplifier: A single SP A-1400C can be .
17 SP A-1400/1400C Rack Mount Power Amplifier Speakon ® is a registered trademark of Neutrik USA Installation and Operation: Biamping: SP A-1400C – Multiple Amplifiers: A single SP A-1400C can be used to power separate low and high frequency cabinets (shown below), and to connect addi- tional biamped speakers, using multiple amplifiers.
18 SP A-1400/1400C Rack Mount Power Amplifier Speakon ® is a registered trademark of Neutrik USA Installation and Operation: Biamping: SP A-1400C – T wo Mono Bridged Amplifiers : A pair of SP A-1400C can be used to power separate low and high frequency cabinets.
19 SP A-1400/1400C Rack Mount Power Amplifier Speakon ® is a registered trademark of Neutrik USA Installation and Operation: T riamping: SP A-1400: A pair of SP A-1400s can be used to power separate low , mid and high frequency cabinets, or a separate subwoofer and biamped full range cabinet.
20 SP A-1400/1400C Rack Mount Power Amplifier Speakon ® is a registered trademark of Neutrik USA Installation and Operation: T riamping: SP A-1400C: A pair of SP A-1400Cs can be used to power separate low , mid and high frequency cabinets, or a separate subwoofer and biamped full range cabinet.
21 SP A-1400/1400C Rack Mount Power Amplifier Speakon ® is a registered trademark of Neutrik USA System Block Diagram, SP A-1400: System Block Diagram, SP A-1400C: RED (+) BLK ( – ) CH 2 INPUTS RIN.
22 Mode Block Diagrams: The following diagrams are excerpts from the system block diagrams and are intended to provide a simplified view of the three operating modes of the amplifier . For more complete information please refer to the text on page 5 (items #16 & 17), and the text and/or illustrations on pages 8 – 21.
23 SP A-1400/1400C Rack Mount Power Amplifier Installation Notes / Mounting Dimensions: The SP A-1400/1400C is specifically designed to be rack mounted, either as a permanent fixture or in a “mobile” rack case. As with any large, heavy object, a proper installation could mean the difference between success and disaster .
www .crateamps.com © 1999 SLM Electronics, Inc. • A Division of St. Louis Music, Inc. 1400 Ferguson Avenue • St. Louis, MO 63133 47-658-01 • 01/99 SP A-1400/1400C Rack Mount Power Amplifier T e.
An important point after buying a device Crate Amplifiers SPA-1400 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Crate Amplifiers SPA-1400 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Crate Amplifiers SPA-1400 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Crate Amplifiers SPA-1400 you will learn all the available features of the product, as well as information on its operation. The information that you get Crate Amplifiers SPA-1400 will certainly help you make a decision on the purchase.
If you already are a holder of Crate Amplifiers SPA-1400, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Crate Amplifiers SPA-1400.
However, one of the most important roles played by the user manual is to help in solving problems with Crate Amplifiers SPA-1400. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Crate Amplifiers SPA-1400 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center