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Horn Tweeter Box |
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SnailSpace 
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Joined: 08 December 2022 Status: Offline Points: 154 |
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 Topic: Horn Tweeter BoxPosted: 04 March 2023 at 11:32pm |
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Yes I’m back with more daft questions…
Horn Tweeter Box - any do’s and dont’s? Can you mix various 8ohm horns of similar Watt within same box on same wiring system or should I only connect pairs of same make & model internally to their own socket/out plate? I have seen Tweeter Boxes with multiple horns & piezos of various sizes so just wondered how it was achieved? Or if it’s a good idea! If so how would I wire x4 internally so they go to one set of sockets? Also some of the tweeters have small elements attached? Maybe small crossovers from being attached to Drivers or maybe they are Capacitors? Are they needed? |
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Conanski
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Joined: 26 January 2006 Location: Canada Status: Offline Points: 2401 |
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Posted: 05 March 2023 at 12:06am |
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What tweeters and horns do you have again? Post some pics if you can.
Tweeter boxes became a thing back in the day because the drivers available weren't very powerful so large quanties had to be used and because DSP didn't exist to contour the response of larger CD's to achieve some sparkle. But none of that is a problem anymore so it really depends if you are just trying to use a bunch of stuff you have or want to achieve the look of a classic sound system stack. If building some ideally you want to use identical drivers in these boxes, if using two different types try to make them cover different ranges. Less powerful drivers probably won't pair well with more powerful versions... they will just get blown when you crank it up. There are ways to combine a bunch of different drivers so they won't blow up but many times less is more.. you get better sound keeping it simple.
Edited by Conanski - 05 March 2023 at 12:18am |
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bob4
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Joined: 29 February 2004 Location: Finland/Germany Status: Offline Points: 1783 |
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Posted: 05 March 2023 at 8:01am |
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And for heavens sake, don't just bolt them all to one straight baffle all shooting forward. Get them splayed properly. Build a box with multiple angled baffles, ideally one small baffle for each driver.
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csg
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Joined: 17 September 2007 Location: bedford Status: Offline Points: 6086 |
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Posted: 05 March 2023 at 9:11am |
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Here is an example of some horn and tweeter boxes I recently made for a local sound system.
Their previous cabs had all the tweeters facing the same way, as well as 2” compression drivers bolted onto 1.4” entry horns, so we replaced the horns with 2” flares too With everything correctly arrayed the difference in sound quality and coverage is night and day. In this instance, the sound uses powersoft X8’s to power everything ( inc the tweeters), so i wired the tweeter boxes in series, so 2 x 32ohm loads. With amplifiers with plenty of output voltage this gives a great match, however with smaller amplifiers you may struggle for gain, so series parallel may be more appropriate    Edited by csg - 05 March 2023 at 9:21am |
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“The fact is this is about identifying what we do best and finding more ways of doing less of it better”
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Lucasdude
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Joined: 16 March 2013 Location: London Status: Offline Points: 603 |
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Posted: 05 March 2023 at 10:38am |
Great looking boxes Chris. Which horn flares are those?
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csg
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Posted: 05 March 2023 at 10:45am |
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Ev hp940
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“The fact is this is about identifying what we do best and finding more ways of doing less of it better”
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APC321
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Joined: 24 August 2013 Location: West Midlands Status: Offline Points: 608 |
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Posted: 05 March 2023 at 11:15am |
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I really like the way 2" horns are angled down in the box.
Edited by APC321 - 05 March 2023 at 11:17am |
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csg
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Joined: 17 September 2007 Location: bedford Status: Offline Points: 6086 |
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Posted: 05 March 2023 at 12:26pm |
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Yes, many compound angles…but it does help keeping the energy off the ceiling
The bullet boxes are fitted with screw adjustable feet, similar to what is often found on the base of small projectors, so that they can be angled down to suit. There is a goove over the top so that the ratchet strap stays put
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“The fact is this is about identifying what we do best and finding more ways of doing less of it better”
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SnailSpace
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Joined: 08 December 2022 Status: Offline Points: 154 |
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Posted: 05 March 2023 at 12:52pm |
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Great looking Boxes and I did want to build my own but I’m pushed for time with having small kids so I’m repurposing some boxes that work size wise and adding a new front. As a few of you know from my previous post it’s my first time splitting off H/M/L so it’s more about using what I have, learning the basics and how use my DSP etc custom made boxers and driver upgrades come at a later date. I may splay them after the suggestion though. Ok so the horns I have are: x4 RX22 (Horn) 8ohm x2 Fane J.104 (Horn) 8ohm 100/125w above 5Khz x2 Altai mht-392 (Horn) 8ohm I was thinking of having x2 RX22 per box but have contemplated adding in the Fane & Altai too I do have x2 Arrow PCT 1000 (Piezo) 150w and x2 Motorola (piezo) but probably won’t use any piezos. Specifications that I have: RX™22 CT Driver
Fane J-105 horn tweeter 8 ohms Pavillon material : acier screw number magnet/horns : 4 resonance frequency ( fs): 1500 Hz Max. frequency : fx-18kHz Rec. crossov. Fréq. (Fmax.) (12dB/oct.): 3000 Hz Max Recommanded Amplifier : 100W/8ohms Nominal Power : 50WAES SPL (1W/1m): 105dB spatial coverage (vertical/horizontal):45°/90° voice coil diameter : 24,5 mm magnet diameter : 80mm mounting hole shape : 240x80mm mounting depth : 193mm size dimensions : 268x107mm weight : 1,4 kg diaphragm model : Monacor MHD-1255/VC (J-105 can support 125W above 5Khz In a full range system, with 95db/W/m woofer*, this compression driver can follow the woofer with 250W of power, about 117db/118db). |
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csg
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Joined: 17 September 2007 Location: bedford Status: Offline Points: 6086 |
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Posted: 05 March 2023 at 1:06pm |
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What does the rest of your system comprise off? Its useful to know what you are balancing against.
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“The fact is this is about identifying what we do best and finding more ways of doing less of it better”
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luton_soundman
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Posted: 05 March 2023 at 1:45pm |
Great work, didnt realise you built boxes for others...interesting
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Sound Hire/Sales new/used equipment.
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csg
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Posted: 05 March 2023 at 2:16pm |
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When time allows…
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“The fact is this is about identifying what we do best and finding more ways of doing less of it better”
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csg wrote: