12 inch driver?

[Daniel Quinn]

My right monoblock developed a fault and burnt the board to a cinder. Unfortunately it took the 12 inch driver with it.

So looking for recommendations to try . My drivers were doped and ran full range in a sealed cabinet. 500mmx340x300.

Anybody any suggestions you can recommend a x over as long as it’s first order

[IslandPink]

So, was it running full range, but with a tweeter ?

[Ant]

Were they the original goodmans drivers? I seem to remember you had goodmans magnums or is that out of date now

[Daniel Quinn]

I replaced them with qtx paper drivers .

The bass is full range.

Audax 5 inch mid range as a inductor and cap

Scanspeak tweeter as a cap .

The wharfedale drivers were replaced

[Nick]

So, was it running full range, but with a tweeter ?

Driven full range, but heavy doped cone to provide a mechanical low pass for religious reasons.

[Daniel Quinn]

I’m no zealot . I just use what sounds best to me .

In 2008 I was going mad trying to to get the crossover right . I literally tried dozens of combinations of inductors,capacitors and resistors. I then moved on to boutique inductors and capacitors .

They all sounded meh.

In desperation I looked on the new to me internet.

Some bloke suggested doping and series wiring . I tried it and loved the sound . That bloke was Richard. I’ll use doping until somebody recommends a technique , I think sounds better.

[pre65]

I’ll use doping until somebody recommends a technique , I think sounds better.

In order to do that you need to try "other" things.

Just saying.

[Nick]

He did list a lot of other things he had tried.

And I should say my somewhat unneeded religious comment was more related to the "without filters" aspect that is then applied to the process.

I guess a rather more positive question is, given "I literally tried dozens of combinations of inductors,capacitors and resistors." how did you select the combination? Measurement, calculation and simulation would be the place to start.

[pre65]

He did list a lot of other things he had tried.

Indeed Nick, I saw that.

*

[pre65]

I suppose, if Dennis was happy with the 12" doped units, that the sensible route might be to do the same again.

[Nick]

Well, he was asking for other suggestions. I guess a second question would be the budget and a schematic (or at least a description with values) of the rest of the loudspeaker so it was clear what sensitivity it needed and where the xover needed to apply.

[Ant]

I have a set of richards 12" doped drivers here if they are any good?
I think they are qtx ones
Not sure if they are the same as your blown up ones

[Daniel Quinn]

Your forgetting I’ve got nothing to do except take my son to school , housework and the evening meal . So I’m always trying other things , but as soon as you stick a cap or inductor on a driver I’m of the opinion it’s robbed of life and timing . I’d love passive components to work it would be simpler .

Budget around 150 per driver, other drivers are 6 ohms

[Daniel Quinn]

Thank Ant, That would be simple immediate fix while I research upgrades . How much ?

[Ray P]

I realise it's not addressing the blown driver replacement question but if you don't like the sound of passive crossover components have you considered going to active, or even passive line-level, crossovers? It'll require more amplifiers of course. Just a thought.

I don't know if they're any good but a possible starting point if you know your current crossover parameters;

https://www.xkitz.com/collections/activ ... plifiers-1