View Full Version : Wharfedale W70D spec sheet

08-10-2007, 02:39 PM
Here's a spec sheet for the W70D; I got it with my speakers from the original owner's family. I meant to post this some time ago, but it disappeared - just found it behind the stereo case where the cats tossed it.


08-10-2007, 03:23 PM
Very cool! Thanks, from someone who owns a pair!!


08-10-2007, 04:57 PM
These were my first Wharfedales and loved them. Notice the power capacity on them. I mated a Marantz 19 to them and it was heavenly. Other than I had so much back then available for cheap, I could have made this my final system for decades.

08-10-2007, 05:39 PM
Thanks rallycat for the info,I recently aquired a pair of these, although just found my tweeters are fried ,but this looks to be a common failure of the purple tweets.

08-10-2007, 05:46 PM
Are they fried or are the caps bad? Most of the W series with these fried egg tweeters I've seen, the tweeters were not functioning b/c caps and/or the tweeter level controls. No, they do not appreciate goobs of power and will cook if abused. Sad, as they are really a nice sounding tweeter.

08-18-2007, 09:07 PM
I can pick up nice pair of Wharfedale W 70 Speakers for $75.00

Are these really good sounding speakers. How do they compare with the Dynaco A25's and KLH model 6's?

Sal Brisindi

08-18-2007, 10:05 PM
I have the W70s and for the dollars you'll have a real bargain. No surround issues. Probably caps and cleaning the l-pad that is wore wound. There is a good probably the tweeters may be silent but, more likely it is the cap and not the tweeter. However try to determine the amp used on these and the sound levels played. The drivers were developed in the days when 10 watts was the norm so if they've been played at concert hall levels with a MC2600 probably will have damage. The woofer and mid may have some vc rub but provided not damaged it may only need to have the driver turned 180 degrees. The drivers have a very narrow gap and settling is more prevelent that with other drivers. If that ST70 is yours then, you've got a good little amp for them with its 35 watts.

The speakers do not have the bass slam of either the Dyna or KLH that are AS designs and tend to emphasize the bass more. They are more comparable with Bozaks, especially the 302a that is also a 3-way. The midrange in these will show the limitations of most 2-ways such as the A-25 and 6s.

08-18-2007, 10:42 PM
Hi Brian,
I have been reading about the W70's for the last 90 minutes on the web. Seems like they are not rock and roll speakers but great for Jazz and classical music like my Bozak 301's Tempo's.

Yes, my avatar is my ST-70 before I restored it, I now have 2 Dynaco ST-70's fully restored and that is what the Warfedales W70 would be connected to. I will call the seller tomorrow and hopefully they are still available. Here is a photo of them. Maybe they are not mint but will clean up really good.

Thanks for the info.


08-18-2007, 11:32 PM
I have read many times about the lack of bass in the w-70's. I have a set and they have very strong clean crisp bass. They sound as good as my AR-3's or other large speakers. I replaced my tweeters with one inch domes for cleaner high end. I have had several amps on them and the best sounding one is a Pioneer SX-950. The Pioneer and the 70's seem to work well with each other. I ran two big Carvers and the smaller Pioneer sounds much better. Also I run a stack, A W-60 on top of the W-70

08-19-2007, 09:16 AM
It is not that the bass is lacking but the bass is not over intrusive. It is delicate and well detailed unlike many later designs around the AS concept. Part of this I suspect is the lack of the typical hump in the 60-75 hz region. The woofer is not happered by the crossover and allowed to naturally roll off.

08-19-2007, 09:19 AM
A coworker scored a pair at a yard sale a couple of weeks ago and loves them. He is mostly a jazz guy if I understand correctly.

08-21-2007, 07:44 AM
I have decided not to purchase the w70 speakers as I am in the process of buying another 2 Dynaco ST-70's at a good price so my funds are diverted there.

Sal Brisindi

08-21-2007, 08:02 AM
Dynas are always out there but local W70s are not. Shipping will kill.

05-19-2009, 05:36 PM
All parts from a pair of Wharfedale W70D Mk II speakers are in eBay this week (including a pair of purple tweeters).

08-22-2009, 06:30 PM
So I found this site through google and I been looking for more information about this loudspeaker. Anyone have anything they can offer?

08-22-2009, 08:05 PM
While we're here, does any one have schematics of the W70 crossovers? Someone did a hack job on mine and I don't know how to wire them. They each have a 4uf and a 7uf cap but they were wired differently from one another. The 4uf, which look original, weren't connected so I wonder if someone stuck the 7s in there to replace the 4s. Or do they use two caps? I have the 7s going thru the frequency control to the tweeters and they sound quite nice with my Fisher 400c but would like to make sure they are correct.


08-22-2009, 10:18 PM
What is the difference between W70D and W70D MKII?

08-23-2009, 08:21 AM
And mine are simply W70, not followed by any letters.

11-06-2009, 07:57 AM
I'd like to know too. What's the difference between the W70D and W70D MKII? I tend to think it could be a switch from the "fried egg"-style tweeter to a dome tweeter like on the W70E. Or is it a woofer variation? Isn't there a W70 4-way AND a 3-way? One with a 15" and 1 with a 12"? I could be thinking of a different model than the D, but it's all so confusing trying to decipher the history of this company - especially with the fire destroying the possibility of a real-deal Wharfedale historical site. Now it's up to the fans and collectors.

And thanks to the OP (if he's still a member - This is a kind of an old thread) for putting up the spec sheet files. Good stuff to hang on to. I have W60's (the slightly-later W60E's with a 12.5" woofer, 5" midwoofer, and a dome tweeter that I believe was used for most or all of the "E" models). I'm pretty sure the "MKII" D models are very-similar to the E models. Even though the D's are rear-loaded (E's are front-loaded), both versions are a sealed, acoustic-suspension design with a more-American-style speaker sound than previous Wharfedale models. I've had my W60E's for about 10 and a half months now, and I'm happier then I've ever been with them. They seem to have gotten better over time. Receiver/amp choice is key with these things. You really want a low-powered, early-mid '70's, SS receiver or amp powering a set of W60 E or W70E's. Great sounding speakers for all kinds of music.

For the W70, there were several different versions throughout the years. There were the early W70's (and I believe W70B's and W70C's), which I believe had alnico-magnet drivers and a sound that had much in common with early Bozak speakers (more-suited for classical and jazz music - A very-warm and glorious sound, but with rolled-off highs). And the introduction of the W70D saw a dramatic shift to a more-American-style acoustic-suspension design. But I think there was a tweeter change AND possibly a woofer or midwoofer change on the W70D. It's a strange and hard-to-categorize speaker.

11-06-2009, 06:10 PM
My W70D MK II's still have the fired egg purple tweeters. Sorry I don't have a picture right now.

Also - I don't think these are truly acoustic suspension - though maybe you were talking about later models. The wool woofer surrounds let air pass.

I have wondered what some stuffin inside the cab would do for the bass output :scratch2:

11-06-2009, 09:43 PM
My W70D MK II's still have the fired egg purple tweeters. Sorry I don't have a picture right now.

Also - I don't think these are truly acoustic suspension - though maybe you were talking about later models. The wool woofer surrounds let air pass.

I have wondered what some stuffin inside the cab would do for the bass output :scratch2:

+1. I also have W-70Cs and they are a three way with a woofer that looks the same as the one in the W-70D MkII, a mid about the same size as the mid-woofer on the D MkII, and a largeish come tweeter. I haven't opened them up to check the backsides of the drivers or the crossovers. If I ever do I'll take some pictures.

11-06-2009, 09:57 PM
The C is a the same design as the original and B series. It is the D and E series that incorporated the new design.

11-07-2009, 12:03 AM
My W70D MK II's still have the fired egg purple tweeters. Sorry I don't have a picture right now.

Also - I don't think these are truly acoustic suspension - though maybe you were talking about later models. The wool woofer surrounds let air pass.

I have wondered what some stuffin inside the cab would do for the bass output :scratch2:

There's no stuffing inside yours? My W60E's seem to be chock-full of it, although I don't know for sure if mine are sand-filled the way the D's and earlier models supposedly are (I've been told that they're not) - Perhaps that's why mine has all the stuffing inside - to make up for the lack of sand-dampening (if that's indeed the case with the E series - I don't know for sure yet). Mine are front-loaded, and if you remove the 12.5" woofer and try to look inside the hole, you can't even see the crossover - let alone gain access to it. Recapping mine will probably be more-difficult than it would with one of the earlier, rear-loaded models. The nice thing is, I'm really liking the sound I'm getting right now, so I'm not in a big hurry to try putting in new caps.

I was under the impression that all of the D and E series models were acoustic-suspension (except for the models that use that "variflex" design - The biggest E model uses that). My mid-woofers have that gauze-looking surround material, which I would think is very-porous, and yet mine is considered an acoustic-suspension design (Maybe it doesn't matter because the mid-woofer is sealed in it's own compartment - Plus, I think they treat the surround material with some kind of sealant that keeps air from getting out - I don't know for sure).

It would be great to put everything together into one thread or group of threads. I'd love to have one thread that lists all of the various '60's and '70's models and the distinctions between each of them (and then you could have threads for each of the individual models). It's not gonna' be easy though. There's no "" to use for source material like there is with other brands. Perhaps we could have a "Show Me Your Vintage Wharfedales" thread where everybody puts up pictures and info about their model/s. That might be a good thing to start with.

01-03-2010, 02:14 PM
Ok, here are a few pics of my W70D's. One has a bad midrange, but besides that they are nice. I've owned them since I purchased them in Japan in 1969 on the way home from a tour in Nam. Haven't used them in quite a while...maybe 12 years or so. Would like to find a replacement midrange if anyone knows where that could take place.
Thanks in advance for any help.

01-03-2010, 03:53 PM
The midrange drivers show up on the auction site from time to time.

01-03-2010, 04:01 PM
I once had a history of all the Wharfedales including edited specs but lost it due to computer crashes or viri. I've owned the W60 and presently own the W70E, which sports a 15 inch butyl surround woofer, 5 inch mid and purple dome tweeter in a sealed cabinet.

09-30-2010, 12:30 PM
thank for all the info in the W70D's... I just picked up a very beautiful pair and am listening to them now, (Moby 18)..... I will post some more pics on my home page....


03-26-2011, 08:34 PM
I just found a pair of these at a estate sale today in mint condition. The woman said it was the last day and everything was going to the junk man on Monday so I could have them for $8.00 they had $25.00 on them and I would have gladly paid that price. I couldn't pull my money out of my pocket fast enough a little cleaning fired them up with a Pioneer SX650 and I think I will listen all night. These sound amazing. I always been partial to Pioneer, Advent and early RtR, but I just became a Wharfedale fan

03-26-2011, 08:38 PM
lucky you!
I just bought a set two days ago at an estate sale too. They are practically mint, but I paid a lot more for them.

03-26-2011, 08:55 PM
yeah today was that day I dream of but never happens. Even my wife who thinks my hobby has grown out of control had a smile on her face.

05-02-2011, 06:07 PM
so if you had to replace the 8 inch mid/bass speakers what would you put in them??