TVR Airfield Day @ Bruntingthorpe May 24th

[Cerbera2004]

Anyone know if TMS will have any of the 'TVR Gear' items with them?

[MrD]

no way is a car 108db

:-)

get it checked again

[kartman24]

looking foward to tommorrow, hope some of you kind griff and chim owners might give me a ride, (sway me as to which one to go for!).any one at TMS know how many TVR`s in total going apart from the pistonhead ones?----martin

p.s bringing my skid lid in hopeful anticipation ;¬)

[Cerbera2004]

MrD said: no way is a car 108db

:-)

get it checked again

Indeed!
I've just finished a rock tour and the sound limit
in Switzerland for a show was 106db in a 1500 capacity
hall, so I'd be surprised if one car was louder than a
rock group!

Mind you, it would be nice to be proved wrong!

[Icarus]

106dB! measured from where? on-axis, 1m from speaker, or from centre Front of house, or.....

SPL measurement is almost an art form (just speak to any of the ICE SPL competitors)... and the maths behind it is certainly art.

Sound pressure drops rapidly from the point of source, as it moves in 3 dimensions.

'perceived' loudness is affected by lots of things: distance, surrounding objects, pitch of sound, etc.... and don't even ask about the 'quality' of sound (there's a whole department at the place I work who are into 'quality' of sound... and we don't make hifi!)

[Cerbera2004]

Icarus said: 106dB! measured from where? on-axis, 1m from speaker, or from centre Front of house, or.....

It was really funny actually.
The venue had a monitor on the wall about 1/4 way back from the PA and it had a traffic light style display and an LED read out.

Basically it showed when you were getting too close to the 106db by a series of coloured lights.
By Swiss law, if you hit the 106db, the venue can be fined...heavily.

I spent the whole show watching the lights rather than my band!

Moving further off topic, on the same tour we played
in Stockholm at the world famous Berns Hotel.

They had the same rig up for volume, but this was based
on what would bring the chandelier down!

Since it was situated directly over the FOH sound desk, naturally the sound never came close to the limit!

[stevecwalters]

The venue had a monitor on the wall about 1/4 way back from the PA and it had a traffic light style display and an LED read out.

Basically it showed when you were getting too close to the 106db by a series of coloured lights.
By Swiss law, if you hit the 106db, the venue can be fined...heavily.

I spent the whole show watching the lights rather than my band!


I know it's off topic, but I used to play in a bar with a similar system where, if the red light went on, the power to the amps went off. Made for interesting gigs with a loud drummer.

[jj_work]

MrD said: no way is a car 108db

:-)

get it checked again

Trust me it is 108db. It was checked at Bedford Autodrome - with Jonathan Palmer watching (seriously...) At normal MSA regs, i.e 3/4 rpm at 0.5m behind the car at a 45 degree angle. It read 108db. Jonathan Palmer (I'm not a great fan of him anyway - always thought he was useless) - then decided to give me a lecture about modifying your cars exhaust to make it loud, he said, quote 'I didn't know why all you guys do that to your cars, it's pointless'.

Yeah well we can't all be rich enough for our parents to buy our way into Formula One, can we Jonathan ....! He then flew his ST24 he was in at the time (with some dolly) off onto the circuit. So I retaliated by 180’ing the Trev in his car park before leaving the circuit making sure I was well above his stupidly low 105db limit or something…

You'll fine that a lot of TVR's with sports exhaust will be around the 104db - 110db mark (especially pre cat Griff’s, and Wedge’s)...
jj