JBL Lopwell++ speaker pit for throwing money into

So following on from my recent spur of the moment acquisition of the JBLs I thought I would start a thread to attract ideas and ridicule in unequal measure.

I bought these with the idea of lugging them to Lopwell and potentially other venues, and maybe running a music session at the local Civic Centre(50 yards away) or the tap house etc.

Here’s some pics to begin the amusement.

Questions/ topics I’m interested in -

  1. Active crossovers and different choices
  2. The potential need to add a tweeter to cover for the expected >10khz roll off?
  3. Amplifier options for the 2/3 way options

Plenty to start thinking about, but first the not insignificant task of getting the damn things here to start messing with them :grimacing:

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Front outdoor seating/bird scarer combo.

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Having a look at the manual, can you see what connectors there are on the bass boxes as the implication from the manual is that there is an input and an output to the high frequency horn?

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:rofl::rofl::rofl:

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Might have a single new Beyma CP21F going spare if anyone else has one?

I’ve got a pair of JBL 2405 I can bring to lopwell

Not that any of us old cunts will hear them :deaf_man:

Have got a pair of Fosi V3 monos I can bring, they’ll happily do the bass

Have also got a Fosi ZA3 stereo amp.

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A friend of mine has just bought one of them. He loves it.

Got the ZA3 first and liked it so then got the V3 monos but they are a bit naff :frowning:

These specced at 800Hz crossover would meet the spec for the system, run amps with volume controls after them to match the levels.

Couple of pairs of these -

https://www.ebay.co.uk/itm/365290705256?_skw=Heavy+Duty+Carry+Handles&itmmeta=01JJYPKT75H5ZCG4BM3YX1HB5E&hash=item550d05d168:g:LlYAAOSwgvFnYKZC&itmprp=enc%3AAQAJAAAA0HoV3kP08IDx%2BKZ9MfhVJKlHr1XAKoGy6YMDdd9iu%2FmAdR%2FJgn7Fwsk5aZPIRuEhv2RPp2CB%2BsmpAMxd5IybbW5jVokMiDqDY0N%2FvZzTj5TonhDcHXs0K3rLN2ZT51CGxyatT5k3GW9aKrLSPq2VkX1u7Be2GuhbZ7U1qU5Wp71%2FiDo08bGSD0PvXnW31AQqVRpdI014ntGp3ia2HkgqAgGrsDpVYFroStCwcQdn8xmPUhSwDDL9qkSzKVqC%2B4gIMydUF8HQ0B42BeeoyC%2FuFYc%3D|tkp%3ABk9SR_qjz9aXZQ

Couple of sets of these -

https://www.ebay.co.uk/itm/375944371176?_skw=Heavy+Duty+Castors&itmmeta=01JJYPQVQV6TM6WHRP71HZX1C1&hash=item578807dbe8:g:eS4AAOSwR6xnkhj6&itmprp=enc%3AAQAJAAAA8HoV3kP08IDx%2BKZ9MfhVJKn6c8AxyH%2F6haIxwTga16Hq5QpAHihcAGsbLP1D8ua4i6uZZBda7KZnhg1S4bYB%2FrwNBvHgIeXy%2FEVQNhnTorwPZrYeX5Ob6uHSBEkQq8kply9YX7QOWg9s%2Bg1BKl7ZISqS%2BoqbwdYslJKc2HADEc8%2F08CuTaqpdojneeERnqRcPVQHFkq4QHHX2u%2F8B5r44enIeGAaBrCR8oLhsT%2FoGx9J1zQRzQwxy7sWbI9WEN7%2BLVvVT0vYpWQQDgqNqJoh7NUK85APjyn2PozKXJlKJS%2FDH7zcElN60U3H7m2n2YMBlQ%3D%3D|tkp%3ABk9SR6i839aXZQ

And some of these -

https://www.ebay.co.uk/itm/315898246239?_trksid=p2332490.c101196.m2219&itmprp=cksum%3A315898246239945a1209eafc41e4b0f5e1eeabfa23a3|enc%3AAQAJAAABQB1CtWCYZXLUOT%252FaKfSD9L5PxxQ4G1PC8Iy4FNTqfnE5LB1rMzkoAxxG4NMVtP9V1QgpWUKDYzm%252BykbPCCdeMdVsN4QsLC3QNbiNd8HY08FBliLqvR9V1rArBAOQxdhTbOWnHclnvkN%252Bgu3L%252BgNtf16qKzCOehl2JyjQLN%252BvaIHCTilbJWC9L8A%252B1Ns4aYwxWfUtua0a0HTyiYIBnUSzVGCkCdi6Z01X%252B%252FONx7Tbo9n5lAso6M7ey0mwmXBottl9hstnutMeYhXzochcAtJxqLDRWF75Rs0rzXeTc0XH3b%252Fzi%252BOnIOAezEcbUt04NRKVlNrOYQLqn4SjYNTgRak14tKwz4yqST97JHSJu3XuMSBmx2zNvU5ZJY2%252Fmh6QOaZYmhu1vm9MVvJYMa1dAjHquM%252Bv3%252FrTjiHWbnPIid1eCn7F|ampid%3APL_CLK|clp%3A2332490&itmmeta=01JJYPYYCYG2Y88E4RM6X6T4HF

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Just so my nephew can enjoy them at full range :laughing:

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Just a thought …

Are they boxed ? If not they’d fit physically in the back of the Mondeo estate I’m fairly sure. They certainly wouldn’t go in upright though. The easiest fit would be on their sides, face-to-face with a card spacer/protector between. I’ve heard people say you shouldn’t transport speakers lying down (the speakers). I’ve heard others say the people who make them always move them like that.

I moved @Mrs_Maureen_OPinion’s Hecos from Lincs to @Algonquin on Tyneside OK, and they were in their quite big boxes.

These are >66kg for the bass box and >23kg for the top horn. No more than a good-sized bloke (each, obvs). So load capacity wouldn’t be an issue. Lifting them in and out might be though.

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The spec sheet and Cinema Sound System Manual, available here:

both indicate that the bass cabs in the 4670D cinema system include the N4638 crossover networks, which include an output for the HF pack. However, the photos suggest that isnt the case with these.

If you want to recreate the original passive crossovers, the circuit diagram is available here:

Search for 4638TH and then 4670D

It looks like the crossovers are about $82 each from the US

4 Ohm bass system 100 dB/W, 8 Ohm horn 111 dB/W, crossover at 500 Hz, looks like fun

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Great post from SJS there. I’d grab the passives = a good starting point.

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I’ve a MiniDSP 2x4HD (and Umik mic) and Bantam Stealth/XTZ A2_300 if that helps.

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When is he picking them up?

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Thanks, ordered.

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This has all the markings of being an epic effort for the cause Sir.

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If only my Mini had roof bars, that would have made for an epic photo :crazy_face: :crazy_face: :crazy_face:

PS I hired a van to take the scouts to Lopwell, it was only around £120 for the basic weekend hire +£20 waiver insurance and £30 in diesel.

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Hel’s Clubman has roof bars :grimacing: :rofl:

Will be taking a tape measure to the Etron later.

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Already down the rabbit hole looking at different horn and driver options :rofl:

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