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Dual 701

2-speed automatic single play turntable with electronically regulated direct drive system

Dual 701

Description

The Dual 701 is the quietest turntable ever made. Not only in our judgement, but in that of the first independent test laboratory to evaluate its performance.

This has been accomplished by an entirely different kind of motor, designed expressly for the 701, and a very innovative approach to the problem of resonance.

Instead of the familiar, high speed AC motor, the 701 has an all electronic, low speed motor, with feedback-controlled speed precision.

Because this motor rotates at the record speed, 33 1/3 or 45rpm, the need for speed reduction systems such as friction idler or rim belt is eliminated.

Instead, the platter is rotated directly by the motor, and the record spindle is the top of the motor shaft.

The 701 motor is so quiet and free from vibration that it does not require any isolation mounting, but is mounted directly to the chassis.

Specifications

Platter: non-magnetic, dynamically balanced, detachable 2.9kg

Platter speeds: 33.33 and 45rpm, electronically adjustable

Pitch control: 10% separate for both speeds, each adjusted by means of variable resistor, with calibration scale

Speed control: with illuminated stroboscope

Wow and flutter: < 0.03%

Rumble: < 50dB unweighted

Tonearm: torsionally rigid, tubular tonearm in low-friction four-point gimbal suspension, tonearm counterbalance with two mechanical anti-resonance filters

Downloads faq

instruction/owners manual (en)

flyer (en)

instruction/owners manual (en, de, fr, nl)

service manual (de)

service manual (en)


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Dual 701 / CS701 owners manual, service manuals and schematics are for reference only and the Vinyl Engine bears no responsibility for errors or other inaccuracies. The PDF files are copyright the Vinyl Engine and provided under strict licence. Reproduction for financial gain is strictly prohibited. This website is not affiliated with or sponsored by Dual.

Comments

Dual-701 Strobe light

The strobe light is not working and I suspect it is burnt. Can you help me as to where can I find a replacement bulb?
Thanks
hrm

Dual 701

Thanks.

Hope this will allow me to look into as to why all on a shudden, the
motor stopped. hopefully this will give me some hope.
Wish me a luck.

Thanks for posting all the manual.

Ben.

12/27/08

I just found out the service manual written in Germany.
Can't read German Language.

Some one please help me either in converting it to English or tell
me where to look for one with English version.

Thanks.

Ben.

Manual Dual 701

Hi Ben,

I have an English service manual available for free.
Give me your e-mail address and I'll send you a copy (PDF)

Greetz,

Murgh1

Dual turntable

I see that you have a service manual. Would you mind sending it to me? Thanks.
Steve
scohen1@bigpond.net.au

I have had the turntable in storage while I moved house and did renovations, so it's been over a year since I've used it. I turned it on, and it worked for only a few seconds before stopping: as though the power went out or it blew a fuse. Any suggestions as to what might have happened?

Thanks.

Steve

G'day Steve, you might wanna

G'day Steve,

you might wanna check the epoxy (?) capacitor in the gray power supply box inside. That cracked in my 701 and made it literally grind to a halt halfway through a 12". Must be due to thermal stress.

Hope this helps,

--Roland

Hi Murgh 1 I see you can

Hi Murgh 1
I see you can supply a PDF copy of the english service manual for a dual 701. May I have a copy please?
Thanks very much...
mehmet
kruuzum@hotmail.com

English service manual for Dual 701

Mdtomp

I also have a Dual 701 and would be very pleased to receive a copy of the service manual at your convenience. Thank you very much.

701 service manual PDF

Murgh1! If you have the service manual for the 701 in PDF form, I would greatly appreciate a copy. And while I am prevailing upon your good nature, I could use one for the 721 as well. Thanks and Best Regards, -Chef Henry

Dual 701 english service manual

Hi Murgh 1
I see you can supply a PDF copy of the english service manual for a dual 701. May I have a copy please?
Thanks very much...
Tony
tburch123@yahoo.co.uk
2nd March 2009

If I could have a copy of

If I could have a copy of that service manual, it'd be great! Thanks,

Will

shillings55@comcast.net

re

Hi can you send the english service manual for Dual 701 to me plamen1619@mail.bg

My 701 is not functioning properly

Murgh1,

I could use a copy of the English service manual as well.
The arm will not place itself on the record. It just moves back to the "home" position and shuts off. Also, the speed adjust knobs have no effect now.

Thanks,

Paul
the 1derful1

Dual 701 - mechanical start /stop problem

Hi Paul
I have a similar problem. The arm is stuck in a mechanical loop: 1) The arm lowers onto the rest and turns off the motor but 2) the platter, still rotating under its momentum, switches the motor on again then 3) the arm lifts off the rest and 4) pauses above the rest for a 3 or 4 seconds, then instead of playing the record, 5) the arm lowers back onto the rest and turns the motor off and the cycle starts again !!!

I have to switch it off at the mains to stop it.

I imagine it is something to do with the arm's automatic start stop mechanism....?

I have asked Murgh 1 for a copy of the english service manual as you did. How did you get on sorting out your problem?
Rgds
Tony

Dual 701cueing problem

Hi Tony

I was interested to read about the problem with the turntable, particularly since on the otherside of our globe in Australia I am having the same problem. Have you been able to fix it yet. If not maybe we can work together on solving it. If you have fixed it I would be grateful to find out from you how to do the same. You can get me at sulshell@bigpond.net.au

Derick

Mechanical start /stop problem

Hello Tony

I have exactly the same problem you are having (or had). Did you sort it out. If so, could you please let me know how you solved it? I also asked Muroh 1 for the English service manual but I did not receive any reply.

greetings

Jannis

Dual 701 turntable cueing problem

Hi Jannis

I was interested to read about the problem with the turntable, particularly since on the otherside of our globe in Australia I am having the same problem. Have you been able to fix it yet. If not maybe we can work together on solving it. If you have fixed it I would be grateful to find out from you how to do the same. You can get me at sulshell@bigpond.net.au

Derick

uploads

You could always donate a copy to the library :)

When you are logged in the link to the upload form is in the left hand menu.

manual translater

you may want to try a service like babelfish.com to translate that manual for you.