agedhorse

No, it’s part of the 115V/230V configuration circuitry. Hook the 115V version up to 230V and the power supply will fail spectacularly. There may be other differences in addition to the jumper(s), so be aware of this before making any assumptions.

Good grief, if you don’t know what you’re doing, leave it alone!!! The 115 refers to the line voltage configuration of the SMPS, not the speaker model. To the comment about SMPS being too noisy for audio applications, look around at the highest quality audio applications and you will see SMPS. Limited experience results in limited knowledge.

I haven't seen any noise complaints form these pedals. That said, power supply noise can be an issue with pedals in general, because most of them use switchmode power supplies plus switching regulators, so under some conditions there could be noise generated from the interaction of 2 or more switching frequencies. Also, if there are pedals in front of the preamp, this can also introduce noise.

I see mode amps damaged by failed service attempts (where the problem actually had nothing do do with the amp) than amps that are just left alone. If it's working properly, leave it alone (IMO and IME).

3 different tone families. The D-800+ is the most neutral of the three, and if you are looking for a simple, straight ahead bass amp, it's the easiest to get along with. The WD-800 is modeled after the old Walkabout , it is native voicing is that tone and also that feel in varying degrees. It also has more extensive EQ and a damping factor selector. The TT-800 is a 2 channel amp and is modeled after the Subway D-800+ voicing on the Subway channel and the Bass 400+ on the Boogie channel. The Boogie channel is pretty significantly voiced, the Subway channel is more neutral. Both the WD and TT use tube preamps.

Yes, of course in this case it’s fine but the GP-11 pre was used in in many other amp models too, and that wasn’t clear from the original post. This was a common mistake made when customers were asking for manufacturer support… the first question was always “stand alone preamp or one of the amp models with the GP-11 preamp”?

Correct, I was addressing this in general since the GP-11 preamp is used in many of the amps also, and it would be easy for somebody later on looking at this thread to misinterpret the information being presented. Some of those amps for the 230/240V market are fused at 3.15A or higher which is why I mentioned it. For other markets, the 125V rating (inductive) is what's important, and these amps can be fused at 6A or higher depending on the model. For example, the GP-11 AH500 is fused at 5A for the 240V market and 10A for the 120V market. The switch that was posted is rated at 2 amps inductive because that's how it's being used. The resistive or thermal current rating does NOT apply in this application since the load is inductive. I used to work as an engineer for one of the previous owners of Trace Elliot so I am very familiar with the technical details of the line (during that era anyway, the current owner's versions are entirely different).

Note that the switch is only rated for 2A (inductive, which is what the power supply presents to the switch). The device should be fused at 2A or less.

I have no idea what the pricing will be, but the exchange rate certainly isn't going to help any...

Correct, it’s all connected to the opening of the new Gibson Garage showroom in London. I believe some products (specifically bass) are already on the water.

Home brew equipment doesn't matter unless somebody gets hurt... then it matters a lot.

If you have damaged SpeakOn jacks, the first thing to check is that you are not using knock-off Chinese SpeakOn plugs. Some of these can damage the mating jacks, and if this is the cause, the repaired devices are at risk.

Kris and Trent are still with us, Garey moved on but I still talk with him from time to time and is still informally part of our team.

Excellent, welcome aboard! It's a long and complicated process and Gibson wants to have everything in place. I was at the factory the other day and was impressed with the amount of product destined for Europe. I don't know the scheduling, but now I better understand the reasons for the continuing delays. The guitar side will also be represented in this launch, and there's a proverbial crap-load of amps/cabinets being built for that market too. We are talking about months of production resources currently being dedicated to Europe (and AU/NZ).

I don't know.

Just wanted to update on Mesa availability in Europe... Mesa bass gear will be featured as part of the new Gibson Garage showroom in London which will be up and running early next year. That's when the re-launch of Mesa in Europe will occur, and it will give players to try out some of the new gear locally if they don't have a dealer near by and happen to be traveling through London: https://www.gibson.com/en-US/Blog/News/are-you-ready-for-the-gibson-garage-in-london

This was not unexpected, manufacturing in the US or Europe is difficult without governmental support. Different countries in the EU support different industries which is why we see a concentration of speaker manufacturers in Italy, Class D amp manufacturers in the Netherlands, etc. This is how individual countries achieve critical mass which indirectly benefits them through increased employment and tax base. China has been doing this for years...

110V, 115V, 117V are all legacy voltages dating back decades. 110V DC was the original Edison standard, 110V AC was the Tesla standard. Between WW1 and the 1960's, the voltage crept up until 120/240V became the defacto standard for the US and Canada. Some designers never changed their 115V or 117V templates, so you do see these referenced from time to time.

US and Canada are 120V +/-10%.

I was referring to bass amps in my reply. Bass amps intended for more professional applications are in general rated using RMS metrics. Moving over to the pro audio side of things, powered speakers marketed towards the general masses are often rated using peak but any numerical rating is disingenuous because to the heavy (and complex) limiting algorithms used to protect the drivers. When you get to the more pro side of things you see more RMS metrics used, though more often I am seeing peak power along with RMS. It's a slippery slope, the marketing guys have to market against others who are already doing it or they feel at a disadvantage.

Better manufacturers do not rate using peak power or PMPO, they use RMS at whatever duty cycle is appropriate for the product.

Never directly measure the output of a class D power amp with a sound card input. Most are BTL (bridged) and there is no ground reference. If you try to ground the speaker minus terminal through the sound card you have a good chance of destroying the amp and/or the sound card. Generally such measurements are made using differential probes and the subtract function on the scope, or a 1:1 measurement isolation transformer capable of the voltages and frequencies required.

25 watts, 30 watts even 50 watts or 100 watts, it depends on the rated load impedance. It also depends on the interpretation and if the product is classified for ordinary or instructed users. There is a lot of gray area, which varies by region. Just because it's allowed in one region doesn't mean all regions. The IEC 62368 standard is just about the most miserable reading ever. I feel awful whenever I open the manual, and if it wasn't for all the politics within (and between) the IEC member bodies, it could have been simplified to 1/4 of its content. Compliance is generally required in order to import goods into a foreign country. Each country or region is different and those differences are contained within the "National Differences" section of the reports, things that are specific to each region. For example, China recognizes the IEC 62368 standard but has (many) additional requirements regarding labeling. Japan has labeling requirements but also the submission of Hipot test logs bu serial number. The Nordic countries have additional labeling language requirements in addition to the EU. It goes on and on, in nauseating detail.

It’s the EU that are driving these changes. It is what it is, it’s actually very minor compared with some of the other items in the regulations that we have to design around.

Good choice, hope yours doesn't use those output devices (may not be the output devices, but the originals are pretty much unobtanium unless Laney's service network still has service inventory available)