DR4052-1.jpg

For sale RARE 1973 Hiwatt 400 amp (model DR405)

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SOLD AND DELIVERED TO A NEW HAPPY OWNER

Up for sale is my 1973 Hiwatt 400 (model DR405). This beast is a rarity as there were likely less than 100 of them built during the Hylight era of Hiwatt when David Reeves, the founder/designer of Hiwatt, was still alive. In the past several years since I kept track, I've only seen three of these for sale in the USA or Canada. I'm located in Louisville, KY, USA.

This old Hiwatt works great, no issues. It is loud, clean, full, and articulate as one would expect with a Hiwatt. Louder cleans than an SVT....it's more on par with a Fender 400PS. No loud hum or hiss at idle...as long as the attached instrument isn't noisy, of course.

Tubes include: matched sextet of Gold Lion reissue KT88 power tubes, vintage Telefunken ECC83 (v1 preamp position), vintage Amperex Bugle Box ECC83 (v2), two new J/J (v3 & v4), and vintage Mullard Blackburn ECC81 (v5 / phase inverter).

This beast is heavy...in the range of 83 to 85 lbs depending on which scale I used.

The impedance selector includes impedance taps for 4Ω, 8Ω, and 16Ω. There are four output jacks wired as two parallel pairs in series. It can operate one cab at any of those impedance values (must use dummy plug in one jack of the other pair to complete the series circuit), four 4Ω cabs (at 4Ω total combined impedance), four 8Ω cabs (8Ω tap), four 16Ω (16Ω tap), two 8Ω cabs (4Ω tap), or two 16Ω cabs (8Ω tap). More combinations are possible with daisy chaining options.

The voltage selector includes taps for 105V (Japan), 115V (USA, Canada), 225V (most of Europe), and 245V (Britain).

I restored this amp myself a couple years ago and Mark Huss (see Mark Huss Hiwatt Amplifier Pages) biased the amp after the tubes were swapped. The Hiwatt 400 was built with stock adjustable bias unlike the 50w and 100w amps. Some parts were replaced, but the circuit is still true to the original design. I replaced all of the seven original electrolytic capacitors...the old ones were bulging. A previous owner (or amp tech) had replaced the output jacks (with what looked like Fender type jacks), standby switch (looked wrong cosmetically), one power tube socket, and four pre-amp components (probably to add gain), and most of the screen resistors on the power tube sockets. So I replaced those replacements except for the tube socket. The standby switch is a vintage Arrow just like it should be. The output jacks are now the proper vintage Cliff jacks Made in England. The preamp section was restored to have the proper resistors values...I replaced four of them I think. I replaced all of the screen resistors on the power tube sockets with the most robust 1000kΩ resistors I could find.

I have the original Bulgin power cord for this amp!!!!

The huge transformers are the original Partridge transformers. The plastic molding on one side of the output transformer is chipped, but that is only a cosmetic issue.

The original rubber feet are no longer on the amp head case, but I have new replacements. One of the chassis screws is not original.

Someone installed a fan in the head box probably many years ago. I disabled the fan, but I can re-attach the wires upon request. The head box is in decent shape considering the age. There blemishes in the tolex, but the tolex is intact.

The dates on the pots range between mid-1972 to early 1973. The serial # 45XX is consistent with a mid 1973 completion date. The amp was probably wired by either David Reeves or Doug Fentiman at the Kingston-upon-Thames factory since it lacks the pen markings of a Hiwatt chassis wired by the contractor team at Harry Joyce Electronics. The DR405 was definitely a special order amp and not in regular production.

Price is $4,800 shipped within continental USA or $4,500 for local pickup. The very few vintage DR405 amps that have sold in Europe via eBay in recent years were bid to the 3,200 Euro (poor condition) to 7,700 Euro (great condition) range. My price is less than what I paid especially with cost of parts and tubes considered. I accept PayPal from USA buyers, but not international buyers. I'm not seeking trades.

I have documented the existence of 11 vintage Hylight era DR405 amps in the world that are still operational through watching sales and with the help of the Vintage Hiwatt Convention forum. Five in the USA (mine, two in Indiana, one in Minnesota, and one in Georgia?), one that sold in Germany 2009, one that sold in Britain in 2007, another in Britain owned by an elderly former club owner, one in Australia that is currently being restored with new electrolytic capacitors, one in The Netherlands (owned by the bassist of Focus), and one more with unknown (to me) location. There is also a slave amp converted to DR405 in the NYC area with a fake serial tag.

If shipped, the tubes would be removed and shipped separately. The transformers would be braced with foam spacers and packaging would be ample. Local pickup is good too of course. I can also deliver it myself to most areas of the eastern half USA.

I tried to be thorough in my description, but send a PM to me if there are any questions.

The amp is great, but I haven't much time to play in bands these days. Am gonna regret this....:bawl:

vintage Hiwatt catalog info: http://hiwatt.org/info/78cat/page01.jpg
vintage Hiwatt catalog photo of DR405: http://hiwatt.org/info/78cat/page02.jpg
More info: HIWATT PHOTO GALLERY 15

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^^^NOTE: that photo was taken prior to the standby switch being replaced.

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Comments

Apr 16, 2009
2,564
2,990
Holy Crap Awkward, I can't believe you're selling this!
 
Jan 5, 2010
573
15
Nice! Where did you get the matching sextet of Gold Lion KT-88's? (I am tube shopping for an old Trace V6.)
 

GregC

Questlove, Black Thought, Hamilton
Gold Supporting Member
Jan 19, 2007
20,292
267,886
NC
Wow! Bump for an amp I can only dream about.
 
Jan 11, 2010
932
22
MI USA
Tubes in action with the purple glow. I took this photo last night.
KT88sextetglow.jpg


I hadn't shown the rear panel yet, so here it is.
DR405rear.jpg


fu22ba55 said:
Holy Crap Awkward, I can't believe you're selling this!
I have some trebly guitar gear up for sale as well locally. I will keep this amp if something else sells first.

wmheilma said:
Nice! Where did you get the matching sextet of Gold Lion KT-88's? (I am tube shopping for an old Trace V6.)
It was probably either Tube Tramp or Doug's Tubes. I can't remember. I buy lots of tubes.
 

Rumblefisher

Supporting Member
Aug 22, 2007
4,961
4,117
Are those NOS Gold Lions or the reissues?
Either way, GREAT tubes, but if they are indeed NOS, well, you are looking at $800-$1000 worth of tubes there folks.
 
Jan 11, 2010
932
22
MI USA
No tube is NOS (new old stock) after being installed. After that, they become ANOS (almost new) and then UOS (used).

As stated in my first post, the Gold Lions are reissues which are my favorite current production KT88. Three of the pre-amp tubes are vintage ANOS having been recently installed as NOS. I spent about $600 re-tubing that amp.

Actually, I've seen matching quads of original Genalex Gold Lions sell for above $1,500 if the original boxes are included. A fresh sextet would be quite valuable.
 

Rumblefisher

Supporting Member
Aug 22, 2007
4,961
4,117
No tube is NOS (new old stock) after being installed. After that, they become ANOS (almost new) and then UOS (used).

As stated in my first post, the Gold Lions are reissues which are my favorite current production KT88. Three of the pre-amp tubes are vintage ANOS having been recently installed as NOS. I spent about $600 re-tubing that amp.

Actually, I've seen matching quads of original Genalex Gold Lions sell for above $1,500 if the original boxes are included. A fresh sextet would be quite valuable.

Thanks, I think you knew what I meant though. Not NOS, ANOS I guess. Still, the RI's are great tubes and EXPENSIVE!!
 
Jan 11, 2010
932
22
MI USA
Price lowered!

Rumble, I knew what you meant, but the term 'NOS' is frequently used too liberally, so I just like to clarify the meaning.
 
Jan 11, 2010
932
22
MI USA
More PM's answered

A couple interested people are trying to gather funds to purchase this amp.

Some of my guitard gear has sold already, so I might be keeping the Hiwatt 400.

I certainly DO NOT want to sell this unless it's necessary.
 
May 5, 2003
1,378
337
40
Edmonton, Alberta, Canada
....And it's back in Canada! I am now louder than everyone on this forum!

I've gotta say - Zells went out of his way on this one... he drove 18 hours and I drove 15 hours to meet and make this deal work. Thanks a ton, man!
 
May 5, 2003
1,378
337
40
Edmonton, Alberta, Canada
Oh Come on....

1973 Hiwatt DR405 + 1970 Ampeg SVT + 1975 Ampeg V9 + 2001 Peavey Classic 400 + 2004 Traynor YBA200 + 1973 Rickenbacker B115 = 1700 Watts of Tube destruction!

But yea... an acoustic 360/361 is probably next....
 

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AwkwardLoudness
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For Sale: Amps, Preamps, and Cabinets
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