Related Manuals for Amina ALF40
Summary of Contents for Amina ALF40
- Page 1 USER GUIDE ALF40 Bass Enhancer (V2.1 Mar 2010)
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Page 2: Table Of Contents
Contents Using the adjustable port system page 3 – 5 Positioning the ALF40 page 6 – 7 ALF40 connection options page 8 – 11 Setup tips page 12 Specifications page 13... -
Page 3: Using The Adjustable Port System
Using the Adjustable Port System The ALF40 features a unique port system which allows for great flexibility in positioning and concealing the product. The port can be switched between two optional positions in the ALF40’s cabinet. An aluminium plate [port plate] and rubber o-ring provides an air- tight seal around the port. - Page 4 Top Position This port position can be useful if you need to stand the ALF40 on its end (connection terminal facing upward).
- Page 5 End Position IMPORTANT NOTES: ALWAYS loosen the 4 screws in the port plate before adjusting the port the blanking plate MUST always be screwed down over the port position that is not in use be sure to tighten both the port plate and the blanking plate. NEVER over-tighten the screws ensure that the RUBBER O-RING is correctly in position around the plastic port and sitting in the circular rebate.
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Page 6: Positioning The Alf40
It is important to allow the bass port to “breathe” i.e. do not place any solid objects closer than 50mm (2”) directly in front of the port. You may place the ALF40 in any orientation that doesn’t block the port. - Page 7 In-Ceiling The illustration below shows how the supplied brackets can be used to fix the ALF40 to a ceiling joist. Notice the port protrudes from the cabinet – this is to allow it to protrude through a suitable hole cut in the plasterboard ceiling layer.
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Page 8: Alf40 Connection Options
ALF40 Connection Options Passive 2.1: The output of an ALF40 in most situations will match a pair of AIW1X or AIW3X speakers (2x ALF40 might be necessary to match a pair of AIW3X in a large room). The ALF40 is designed to be connected in parallel with an AIWX series speaker (the APU2 forms part of what is effectively a crossover between ALF40 and AIWX). - Page 9 Passive 2.2: For systems using a pair of AIW5X speakers, a pair of ALF40s will be necessary. In this scenario both channels of the stereo amplifier drive an ALF40 in parallel connection with an AIW5X.
- Page 10 Active 2.1: By connecting a single ALF40 to its own amplifier channel, its output relative to the AIW1X/AIW3X pair can be set optimally. In larger rooms care should be taken not to adjust the relative output of the ALF40 so high that its mechanical limits are reached well before those of the accompanying AIWX speakers –...
- Page 11 Active 2.2: For systems using a pair of AIW5X speakers, a pair of ALF40s will be necessary. In this scenario the amplifier will need four independent channels.
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Page 12: Setup Tips
Setup Tips When setting up any of the above system scenarios, it is advised to experiment with connecting the ALF40 in reverse phase with respect to the AIWX series speakers. Often, the reverse phase connection results in better integration and slightly higher sound pressure level through “cross-over”... -
Page 13: Specifications
Specifications Dimensions: 358 x 159 x 134mm (14.2” x 5.3” x 6.3”) Weight: 3.03Kg (6.67 lbs) Design: Ported, acoustic bandpass with built in protection circuit Power handling: 40W continuous Nominal Impedance: 8 Ohms (4 Ohm when used in passive configurations with AIWX speakers) Frequency Response: 60Hz - 150Hz (+/-6dB), 24dB/octave slope Sensitivity:... - Page 14 Amina Technologies Ltd Cirrus House, Glebe Road Huntingdon, Cambs, PE29 7DX England tel: 00 44 1480 354390, fax 00 44 1480 356564...
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