Or a Crown XTI. They are more money, but you get the same X/O capability (for the future), and they can do PEQ too.
The only PEQ I have on my system is a 10dB cut at 30Hz (huge room mode), that is handled by Najda but could be done by a XTI just as well.
The rest is a god intended!
Most rooms have room modes at some low frequency.
There are online calculators that can tell you that frequencies they are at if you feed in room dimensions.
Pretty accurate in my case.
Most ‘smaller’ hifi speakers, or vinyl spinners don’t go deep enough to find them😂
Lana Del Ray’s - Dark but just a game, has a huge bump at 30Hz. Sets my room off nicely.
So too her A&W (explicit ).
I bet the vinyl versions are completely tame! The needle would jump out otherwise.
Yes mostly, but I’ve been mightily impressed with my Crown XLS on mid bass duty too - 90-300 for them.
It kills the T-amps and ditto with the Chord amp I mentioned earlier, also and a nice 25w tube amp I had.
Big horn system bass / mid bass with big drivers doesn’t need touchy feely little hi-fi amps.
It’s about scale, dynamics and control.
Gotta keep up with the compression drivers.
I have the same tapped horns and 12" mid-bass horns (square rather than round) as Steve has. I have a single xli1500 srereo amp on each stereo channel. Class A/B and no peq facility but that is handled by Najda. They can be stereo/mono/bridged and put out really good power, although they also have a good damping factor which I think, ultimately, is the important bit when on bass duties. Tapped horns to 90Hz and mid bass 90 to 350Hz ish.
They work very well as far as I can tell although I haven’t tried any other amps in these positions.
With speakers as efficient as these they will be operating at 1 watt or less I should imagine which poses another problem when using amps to be worked hard producing a lot of wattage in a pro-audio application. They will have been designed to have minimal distortion at their intended use range. What are their distortion figures like at fractions of a watt in a domestic environment with high sensitivity speakers? I assume the designers and engineers never even considered that situation. As it stands, they sound pretty good to me.
I’m generally wary approaching unprovenanced DIY builds, but this one looks excellent, and the F5 is one of the quietest and lowest gain of Pass’s power amp designs, and could suit the system very well. It’s also fairly priced if an offer of £500 lands it (and I’d not pay more):
As I mentioned up thread Paul, I already have a chunky class D amp - the ES Labs Tripath.
It’s being returned this Sunday after three years on loan to a friend.
I will try that first, but as it doesn’t have a volume control, I’m not sure it will be a good match with the little 3w 6b4g SET.
Guy’s little SET sounds sublime with the Gotos, but to get it all balanced with the sub, the volume on the Aiyima T-amp driving the GPA cabs has to be set really low - it’s barely on.
I’m sure it seems like that. Yes, I’ve had a couple of amps loaned, but bought everything on the shelf above.
Also bought and sold three other power amps this year too.
I think I’ll keep the above set up for a while now though.
Might buy a new pair of 300b tubes for the Diavolo, as the existing items are of indeterminate age/hours.
).
I’m sure it seems like that. Yes, I’ve had a couple of amps loaned, but bought everything on the shelf above.
