DV Mark Little Jazz combo - Extension Cabs

[fiftysix]

I am totally mentally challenged when it come to understanding electronic terms. So any of you that know this stuff I would appreciate our input.

Just bought this from Guitar Center love the size and tone and features plan to use it as a travel amp. I need help understanding the external speaker and what I can plug into it. It says Output for external speaker says (minimum load 8 ohm).

1. Can I use a 2 x 12 cabinet with two 8 Ohm wired in parallel for a 4 Ohm load?

2. If I can use the 2 x 12 4 ohm cab, do I turn the internal speaker off or will it run all three speakers kind of like a 5E7 bandmaster?

[marcwhy]

Congrats on the new amp!
No, typically you should use an 8 Ohms total cab, not 4 Ohms. Check the manual or online for exceptions.

[sgosnell]

You can use the internal speaker or not, as your taste dictates. I push the switch as my mood and the room change. Minimum means minimum. You might get away with using a 4 ohm load, but I wouldn't recommend it. You can rewire the cabinet to put the speakers in series instead of parallel, and that will work, at the expense of maybe a dB of volume. But you need to know what you're doing.

[fiftysix]

I found this on their website under FAQ Duh looks like a 1x12 and the internal 10 should sound pretty good.

You can use two 8 ohm cabinets with any Markbass head. The total ohm load then becomes 4 ohms, which means that you get more power from the amp. But be warned, you can't use Markbass amps into an ohm load lower than 4. That means you cannot use two 4 ohm cabinets, or one 4 ohm and one 8 ohm! There are two speaker outputs on every Markbass head. Simply connect one output to each cabinet or connect one of the speaker output to the first Markbass cabinet and then link it to the second cabinet. Be warned that using your amp into an ohm load lower than 4 ohms will damage your amp and will not be covered under warranty!

[fiftysix]

Directly from DV Mark You can use a 212 4 ohm extension cab by turning off the internal speaker. How cool is that?

Yes, turning off the switch on the back of the amp the internal speaker would not powered so you can use a 4 ohm cabinet.
Best.
Riccardo

[KirkP]

Directly from DV Mark You can use a 212 4 ohm extension cab by turning off the internal speaker. How cool is that?

Yes, turning off the switch on the back of the amp the internal speaker would not powered so you can use a 4 ohm cabinet.
Best.
Riccardo

The consequence of forgetting to turn off the internal speaker could be a blown amp. If I routinely used a 4 ohm cabinet, I’d physically disconnect the internal speaker to be on the safe side.

[fiftysix]

Right I don't think I will use a 212 4 ohm cab at all, but nice to know you can. This thing sounds wonderful with the stock speaker and a 112 8 ohm cabinet.

[Gitterbug]

Careful! I know of two cases where hooking an extension cab to a DV Mark amp has caused the amp to blow up. The first bang & blue smoke I witnessed on the spot. My theory is that turning the internal spkr off before plugging the extension spkr is dangerous, if the amp is on during the operation. First, there's a no load situation. Second, when the 1/4" plug is being pushed in, there may be a momentary short when the plug's tip and stem touch the jack's body. I can't remember having seen any warnings about this in user manuals. Any experiences/educated views out there?

[sgosnell]

1/4" plugs/jacks should not be used for speaker connections. I have no idea why modern amps keep on using them. Speakon connectors are much better and safer. That momentary short is unavoidable with 1/4" plugs. The amp should be turned off before speakers are connected or disconnected, even with Speakon connectors, which will not short out.

[BillCoplin]

I’m pretty sure you can’t blow up your amp if you turn off the internal speaker on a Solid State Amp. That was always a concern on tube amps. This is why many Solid State amps can support a headphone jack.

[Gitterbug]

While solid sate amps may have protection against the internal speaker being turned off, plugging in a short is a different story. Why would s/s manufacturers issue minimum load requirements if the danger wasn't present and clear? Orange, for example, now has raised the limit to from 4 to 6 ohms on the Micro amps, and I believe GSS has the same.

[sgosnell]

Solid state amps can cope with high resistance just fine, up to infinite, which is why they can run with no speaker connected unharmed. But zero resistance, i.e. a direct short, is another story. The magic smoke may escape. Tube amps are the opposite, more or less. It's best not to run your tube amp without a speaker load. I turn my amps off when changing speaker connections.

[Greco]

What would be some recommended 1 x 10" extension cabs for the DV Mark Little Jazz?

I am not gigging and am not a skilled player. However, I want to treat myself.

Please try to keep the suggestions below ~ $300.00 USD and available in North America.

I fully understand that cabs, cab design, speaker choice, etc is a very deep rabbit hole.

Thanks in advance.

[Boogaloo]

I’m sure you’ve checked Long & McQuade. They do not list a 10” speaker cab. Why not a 12” speaker?They list the cab that matches the super champ head at $259. Cheapest cab out there in Canada. Happy hunting! I hope you find what you want.

[marcwhy]

I bought a new Raezer's Edge 1x10 for $350, and it's an excellent cab!
Lots of cabs out there .. Mark Nerby makes a nice 1x10 for a good price, too.

[Greco]

Thanks for the responses. There is a local fellow that builds cabs and I might get a quote from him.

[Drifter]

I've tried a cheap 8" Randall cab and it adds a totally new dimension without losing anything. I recommend to consider a cab that sounds very different to the amp itself, that way you add something that will enrich the mix instead of just doubling what you already had.

[Chazmo]

I use a Carvin 10" PA speaker as an extension for my Henriksen Bud.

[Durban]

Re post dissembling a Little Jazz, i mentioned the Little Jazz as having a Neo speaker, well i thought it had, but am now doubtful. Someone replied to my post saying it did not look like a Neo.

Can any one confirm whether LJ has a Neo speaker or not.

[sgosnell]

All I can say is that it's a rather large magnet for a neodymium. One that large would be so strong you probably couldn't remove it from a piece of iron. It's hard enough with the little ones in magnetic hard drives. I tend to doubt it's neodymium because of the size, but in truth I know nothing for certain.

[wengr]

Personally I have never seen the speaker described as neo. I do not believe that DVM lists it as neo.
Ime neo costs more and is usually advertised as such. I see no reason to suspect that it is neo.
Now why it's glued in place I would be interested to learn. I'm not a fan of that.

[Longways to Go]

Personally I have never seen the speaker described as neo. I do not believe that DVM lists it as neo.
Ime neo costs more and is usually advertised as such. I see no reason to suspect that it is neo.
Now why it's glued in place I would be interested to learn. I'm not a fan of that.

Looks like a standard speaker to me. Regarding the glue, I suspect it is to seal the speaker into the cab.
Keep in mind, we are talking about a very small ported enclosure that can play fairly loud.
I'm not saying it's the best ever engineering, but I can understand a glop of silicone to stop some ugly sounding vibrations.

[Gitterbug]

I don't think it's Neo. Why would they consume the cab's scarce airspace with a huge cap the makes an expensive Neo speaker look like cheap ferrite? This size Neo speaker's magnet housing would have a diameter of approx. 60-70 mm, and it would display holes or ribs for cooling. Neo speakers differ in how magnetic they are outside the housing; most are very weak. So if that speaker's magnet attracts screws and nuts with a strong force, it's not Neo. Finally, I'd expect to see the LJ weigh at least 0.5 kg less with a Neo speaker.

BTW, as you are still puzzled about the value of the "crap" inside, don't forget that the enclosure probably costs a lot more. As a rule of thumb, you have to multiply the manufacturer's price by at least three, easily four to make trading profitable for the manufacturer, distributor and retailer. In Europe, you typically have a VAT in excess of 20% on top of it all.

[Durban]

damn, it i was really convinced it was a Neo and certain i saw it described as being Neo about 2-3 years ago.

I know nothing about Neos but can see the Magnet is too big. I may weight the speaker some time if in can pull the speaker connector leads off, VERY VERY tight/firm so dont want to break. Why they could not have put even a durable paper gasket on speaker is hard to figure, IMO it does not need gluing although some hi end hi-fi speakers did use glue.


I think Hendriksen Blu uses an Eminence 6" Neo customised for Hendriksen, essential the same as 6" Neo on Eminence site.

I think Chinese make some 8" Neo.

[Gitterbug]

I have been using the Eminence Alphalite 6A 100W Neo speaker as a high-power alternative, excellent but expensive, in my TOOB Metro 6.5 cabs. Rave reviews from users. Sometimes, all it takes to make "special design" is changing the sticker. 8" Neo speakers are scarce, our friend Lawson-Stone has found something (Faital as I recall) from Italy, where there's still numerous loudspeaker makers. As an aside, Italy is Europe's China, still manufacturing a broad range of products smaller than a cat, and with close ties to Chinese subcontractors. No wonder the Corona virus found its way to Northern Italy so early.