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Old 17th January 2010, 04:36 PM   #1
nad is offline nad  United Kingdom
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Default The life of my 30 year old Rotel RA-314

It’s a big post, but maybe you’ll enjoy it?



The key points of my Rotel RA-314's life……..

First purchased by my father in 1979 (coincidently, the year I was born) from a little local Hi-Fi shop that is still going strong today, found in the same premises and run by the original family, although unfortunately, the founder and salesman who sold my father the amp, passed away some 5 years ago.

The amp was used by my father daily for around 6 years until my brother (11 years my senior) decided he would claim it to play Jam and the sorts at the highest volume possible.

My brother used the amp for many years giving it a whole load of punishment, not physically though, which I thank him for.

Then it was my turn, at the age of 12 I claimed the amplifier and had quite a bit of fun, first up, I wired as many speakers to it as I could find, then coloured the recess’ on the controls in blue. Many happy but ‘loud’ years passed without it going ‘bang’.

At the age of 16, my ‘wanna be’ DJ friend and I was hosting a party, or should I say ‘happy hardcore bash’ (sad, I know) at a local village hall. The party word had spread far and wide and before we knew it, it was 7:30, almost time to open the doors.

We had a problem and it was big! The speakers we had rented from the PA firm had delivered the wrong ones. We had asked for active but they delivered passive and disappeared for the weekend.
2 Pairs of 15” drivers and a pair of horns to power! What do we do was the question?

I rang ‘mother’ and asked her to go in my room and bring the big silver box with knobs and buttons 15 miles to us, and be quick!

We chopped the Speakon connectors off the cables, connected the ‘bins’ to the rotel, turned it on, crossed our fingers and turned it up. Blimey Charlie, big smiles all round, the hall filled with bang, bang, bang, tisch. Great stuff, lets hope it lasts as we don’t have a backup!

3 hours later at maximum volume, the amp had now turned itself into a radiator, the heat coming out of the vents was immense, you could hardly touch the top panel! No failures, it lasted all night long!
The party was great, everybody enjoyed themselves and the saviour was the little Rotel RA.

In 2001 I left the ‘nest’ for my own home, the amp stayed behind for quite a few years until I visited the parents sometime in 2005. I pulled up the drive partly blocked by a big yellow skip, walked past the skip and noticed something shiny poking from under a pile of soil. Argggghhhh, my dad had just ‘chucked’ it in the skip. It had been sat under soil in there for 2 days!

I rescued it, hoovered it out, gave it a clean, removed the blue paint from the recess’ and plugged it in to my B&W 601’s and it sang! Great stuff, no scratchy pots, no hiss, no loss of bass usually associated with old and well used capacitors.

It is now retired to the ‘loft’ where it will stay for quite a while, hopefully it’ll still be going strong in another 30 years!


I don’t think an amp of today would survive a life like that.
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Old 17th January 2010, 06:11 PM   #2
jaycee is online now jaycee  United Kingdom
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You should mail that to Rotel. They'd probably be quite proud! At least they should be!
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Old 18th January 2010, 06:46 AM   #3
sakis is online now sakis  Greece
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since i am 30 years in the market of electronics and sound was most of it ....i have a million like these story to tell

some amplifiers not even factory made brand TENSAI sub constructor of akai i think managed to make similar gigs for 30years

we have clubs tilltoday operating with peavey first cs 800 ( that is a quasi )

may be a sticky thread with stories like that could be a hit !!!!

it is actually worth noticing that only japanese or us made equipment managed to do that
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Old 18th January 2010, 05:12 PM   #4
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Default The amplifier history is interesting, but no picture.

You should post something for us, would be much better.

Having picture you would have more people reading and posting here.

You are talking about something we cannot see...just a brand name and numbers.

And you did that in the other forum Georgejack.

regards,

Carlos
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File Type: jpg RotelVintage.jpg (93.1 KB, 280 views)
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Last edited by destroyer X; 18th January 2010 at 05:26 PM.
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Old 18th January 2010, 06:28 PM   #5
nad is offline nad  United Kingdom
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Quote:
Originally Posted by destroyer X View Post
You should post something for us, would be much better.

Having picture you would have more people reading and posting here.

You are talking about something we cannot see...just a brand name and numbers.

regards,

Carlos
Sorry, I wrote it in a bit of a rush. Forgot to add the photo.

I also typed the model number wrong twice, its a Rotel RA-412, silly me.

Here's a photo......Click the image to open in full size.

Last edited by nad; 18th January 2010 at 06:31 PM.
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Old 18th January 2010, 06:37 PM   #6
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Quote:
Originally Posted by nad View Post
I also typed the model number wrong twice, its a Rotel RA-412, silly me.
Well just to satisfy you i happen to have an RA314 sitting here I'm not using it but it certainly works ok.

Nice story btw
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Old 18th January 2010, 07:00 PM   #7
nad is offline nad  United Kingdom
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Give us an hour to get it out of the loft and I'll post some more pics, It'll be good to see what's inside the wooden exterior and I'll post them too.
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Old 18th January 2010, 07:41 PM   #8
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Default Very good idea, you almost prove the equipment is strong and reliable

I am already sending mails to friends, that, alike Sakis, may have the schematic, i want to understand, observing the schematic, the reason why the unit is so strong.

You told was too much hot to the touch and this was very, very, very impressive to me.

Sakis!. do you have schematic to uncle Charlie?

Post some pictures my dear friend, internal pictures.

regards,

Carlos
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Old 18th January 2010, 07:49 PM   #9
nad is offline nad  United Kingdom
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Originally Posted by destroyer X View Post

Post some pictures my dear friend, internal pictures.

regards,

Carlos
5 mins......
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Old 18th January 2010, 07:51 PM   #10
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Default Thank you NAD

I have found another model schematic, was good to see the way they do.

I am not sure if all models are using the same topologie, but it is possible they use something alike.

regards,

Carlos
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File Type: pdf ROTEL - RA-820 BX2.pdf (14.2 KB, 86 views)
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