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itolond

Member Since: 16 Jan 2016
Location: Singapore
Posts: 193

1997 Defender 110 300 Tdi SW Alpine White

Questions about audio amps

Hi Forum,

i have a Quart Nautica 6 channel 540W amp which is part of the new audio system in the Defender - i have located a spot under the 'modified 2nd row seats.

Like most of the electronics upgrades thus far i have created at min IP65/67 enclosed 'boxes' to protect them from dust/corrosion and where possible water egress.

now begs the question i can i have space to do so with the AMP but i am concerned the heat generated by the AMP in an enclosed space will shorten life or in worse case over heat the unit.

how much heat does an amp like this create?
are they ok for enclosed spaces (as above)
any pointers

amp specs:
https://mbquart.com/na540-6/

14th May 2018 11:46am

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19531

Well that one is a Class A/B so will create more heat than Class D which is my preference due to increased efficiency and lower running temps.

Have you considered adding ventilation fans? Stinger do some good ones, however, check the sizes. Diesels Lives Matter. ⛽️🛢️👨‍🔧🧰⚙️
And if You Love the Country, then we’re on the same side ~
I got’ love for Britain, I got’ British pride’. 🇬🇧

Last edited by custom90 on 14th May 2018 7:36pm. Edited 1 time in total

14th May 2018 12:03pm

itolond

Member Since: 16 Jan 2016
Location: Singapore
Posts: 193

Fans, then there is no benefit in enclosing right?

What does the class refer to?

14th May 2018 1:01pm

DuncanS

Member Since: 07 Dec 2013
Location: Cumbria
Posts: 295

2008 Defender 110 Puma 2.4 USW Santorini Black

They will need to be vented to keep them cool. I'm yet to find an amp other than passive radiator in-speaker amps that don't have fans on them. North Cumbria Search and Rescue - Team Leader

14th May 2018 2:08pm

itolond

Member Since: 16 Jan 2016
Location: Singapore
Posts: 193

ok gotcha - enclosure is a no go

14th May 2018 2:11pm

dgardel

Member Since: 30 Nov 2008
Location: Veneto (Heart & Head)
Posts: 3586

[joke mode]

I installed this one on my defender, C class pure

Click image to enlarge

[/joke mode] Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition

IID Pro MV License

14th May 2018 7:30pm

Maxxed_Ross

Member Since: 06 Jun 2012
Location: Bathgate / North Sea
Posts: 340

I'got a full JL Audio set up sitting it the loft waiting to go into my 90, but I'm also worried about them getting damp. The 90 I have now is probably the most water tight of all the Defenders I've had - but still leaks quite a bit in the back and around the roof seals. Tried most of the creeping leak cures and even silicone... I suspect it needs a new seal at 18 years old

I went for a 400/4 and a 500/1 Slash Class D amps. The 400/4 runs a set of 4" ZR component speakers and used to runs a set of 6x9" speakers - but I sold them on with the last car. The big 500/1 runs a set of 3 x 10"W3v2 subs. More than enough punch for any situation

The ability to adjust the boost from a control knob mounted up front is very handy too

They're well over 14 years old now, but apparently the Slash is still regarded as the best amps JL Audio ever made 2013 Discovery 4 HSE Lux | 2001 Defender 90 TD5 | 2007 Prodrive RB320

14th May 2018 7:55pm

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