Questions? Feedback? powered by Olark live chat software

Amplifier and Enclosure Kit for LASERBEAM-DUAL Filters (filter included)

$66.24
(Inc. Tax)
$55.19
(Ex. Tax)

NOTE Customers outside the Eu pay the lower (Ex. Tax) prices!

(15 reviews) Write a Review
Shipping:
Calculated at Checkout

Amplifier and Enclosure Kit for LASERBEAM-DUAL Filter Modules (DSP module included)

The popular LASERBEAM-DUAL filters are ideal for incorporating into your own designs. However, for additional flexibility we have designed this great amplifier/enclosure kit which will allow your LASERBEAM-DUAL filter module (included) to be used with all your favourite radios. It has a professional look to compliment your shack.

The BOXA-DUAL kit consists of a PCB that the filter module (included) will plug into, together with an audio amplifier. The front panel features the CW Tuning LED (Sig) and Overload LED (Lvl) as well as a bandwidth switch (W/N) and volume control (Vol). The rear panel has 3.5 mm stereo sockets for audio in and out as well as a power socket for a DC supply (5-15 Volts).

As supplied, the board will drive headphones or a small loudspeaker. By changing two resistors, audio output can be increased up to 1.5 Watts which will drive loudspeaker. Because the filter module is a plug-in unit you can swap between different LASERBEAM-DUAL modules depending on your application.

The BOXA-DUAL enclosure has laser-cut gold-effect panels which screw into a rugged aluminium case. Power input is via 2.1 mm power socket (plug supplied).

The kit uses all through-hole components and is an easy build for a beginner. Build time about 40 minutes. Click here for instructions.

Optional Extras

A 3.5 mm to 3.5 mm jack to jack lead might be handy so we got some in. Click here.

Cable for your power lead could be useful. Click here.

Specification

Size: 85 x 63 x 30 mm

Weight: 136 grams

Supply Voltage: 5 - 15 Volts

Current: 70 mA - using headphones

Power output: 1.5 Watts maximum into 8 Ohms (maximum depends on internal resistor values)

 

 

15 Reviews Hide Reviews Show Reviews

  • 5
    Good product for a good price

    Posted by Dave McKone. G4DRX on 1st Feb 2018

    I dropped hints to the family of what would be a good Xmas and birthday pressy...glad I did...easy to build with good instructions and makes cw copy on the 817 very pleasant ....thanks richard...

    Hint ...do a test run with self tappers before affixing the end plates as screws are tight and easy to slip and scratch panel with driver.

  • 5
    Lower kx3 fatique

    Posted by Einar LB9U on 14th Jun 2017

    A loth of cw operators like me have experienced fatique when listening to kx3 rig on cw for longer periodes. This have been very irritating when considering the price of the rig and that cw is one of the main modes for low power operation. I got the idea to try to use the Laserbeam-Dual on the rig. It turns out that I am much less fatigued after 1 or 2 houers with listening. I manipulate the origional filter and the 2 position cw filter on the Laserbeam-Dual trying to decrease the noise as much as possible. Quit easy when You get into it. To have an audio amplifier is important because the build in audio amplifier is a bit weak on kx3 when driving an external audiofilter

  • 5
    digital SSB filter without compromises

    Posted by Unknown on 1st Jun 2017

    Amazing. Using digital filters you can usually expect a
    delay between in and out. That one is here less than
    approx. 10 ms, which is an excellent value. Digital devices
    most of all have their own RF emission across the shortwave
    bands due to MCU clock rate, which one is here so low, you
    could hard identify by sensitive measurements. Thus DX
    shortwave reception on testing never was affected by
    unwanted MCU clock emission using that device. The related
    noise on AF-output is extremely low on amplifier output,
    you cannot hear. It seems an internal limiter is always
    working in the background, you do not notice on normal
    operation, but what is a good extra feature. In comparison
    to "normal" OP-Amp filters, there are no distortions
    caused on resonance peaks.
    The quality of kit components is outstanding. The service
    contact is excellent, too, by the way.

  • 5
    Great box for Laser Beam dual filter

    Posted by Bill on 1st May 2017

    Great to have a well designed enclosure kit which included a small audio amplifier

  • 4
    It Works

    Posted by Jim McDonald on 2nd Mar 2017

    Have had the filter a few weeks and have been using it with my IC703 both in the shack and portable. Durning our QRP groups outings the guys can't believe the single signal copy on CW. The only minus is it draws about 200mA and can kill a 9V battery overnight if you forget to unplug it 73, Jim KI1H

  • 5
    Great kit, easy build, solid quality

    Posted by Rex KE6MT on 21st Feb 2017

    I was originally going to put the SOTABeams filter module directly into the FT-817. But then I realized I wanted more flexibility than having it permanently installed in there, even though it's more efficient in terms of space (and probably power). So then I ordered this kit and the filter module for CW (wide/narrow).

    Wow -- I'm really impressed! Plug it in, tune around with it set to "Wide" and then switch over to "Narrow" and the signal is super-clear. Makes it really easy to pull things out of the noise and/or other stations.

    This makes the FT-817 (or any other filterless radio) very useable on CW.

    The kit is a pretty easy build if you've ever built kits before, and I'm quite certain a total beginner could do it, too, if they've ever done soldering.

    Thanks Richard!

    Rex KE6MT

  • 5
    Great kit for the LASERBEAM-DUAL

    Posted by Peter VK3PF on 8th Jan 2017

    I had purchased a LASERBEAM-DUAL SSB/CW module several months ago and had not done anything to case it up, other than some thinking. I purchased the amplifier/enclosure kit, which arrived in a reasonable time. The instructions were clear and easy to follow. I quickly had it all assembled and integrated. Worked great on the first try. The combination makes the FT-817 much easier to use.

  • 5
    dual filter CW

    Posted by Nico (F4EGX) on 17th Nov 2016

    I purchased the kit and enclosure.
    I have not use the 10 way header socket, to save space. The DSP is direct on the board.
    I drilled the box to put a little 3cm loudspeaker inside, and now it's very fun. It's work very well!
    But I think R4 and R5 is on the wrong board side. It's more easy for try and experiment some configurations if R2-R3-R4-R5 are not under the sotabeam Filter, but at the bottom of board kit or outside the sotabeam filter area.

  • 5
    Dual Filter Kit CW

    Posted by Bill on 2nd Nov 2016

    Purchased to use with Rock-mite(s) which have wide open receiver.
    Great kit. Perfect for beginner to kit building. Great instructions online.
    FYI U.S. customers. Online orders work great. The shipping is a bit slow, but to be expected for the low cost and having to go international. I will buy from SOTA Beams again.
    73s
    KB5PNI