Vintage Dynakit Stereo 70 Tube Power Amplifier


1 in stock






 Dynakit Stereo 70


Offered in used condition and fully functioning. This Dynakit has been bench tested and is ready to be plugged and played. 



This is part of a fairly large audiophile estate. We will be offering many McIntosh items as well as other great vintage items. So make sure to book mark our eBay store.




The Dynakit Stereo 70 is a
complete dual 35 watt power amplifier kit which offers the highest possible
fidelity, at low cost and in a compact arrangement.

It uses a patented circuit
of outstanding performance characteristics, along with top quality parts, including
the new Dynaco Super-Fidelity A-470 transformers – the finest available.

The measured
specifications show that the Stereo 70 is an amplifier of unequalled
performance, and its listening quality is also unrivalled by any regardless of

This amplifier has
characteristics and power rating ideal for either stereophonic or monophonic
use. The two non-interacting 35 watt channels provide adequate power, in a
stereophonic or two channel system, for loudspeakers of any level of

The channels can be
paralleled for a full 70 watts of low distortion output, suitable for
practically any monophonic use even where several loudspeakers are in use in
different areas.

The high power capability
and low internal impedance provide excellent damping for all types of high
quality speaker systems without need to make adjustments to match specific
speaker installations.

The design features of
your Dynakit which contribute to its superior listening quality include some
which are not revealed by the customary steady-state laboratory measurements.

For example, it does not
exhibit bounce and flutter when pulsed with a transient signal. Thus a sharp
percussive signal like a drum beat or a piano note will be reproduced with
sharpness and clarity and neither overhang nor muddiness.

The Stereo 70, unlike many
other amplifier circuits, has been designed to provide its specified
performance on a loudspeaker load, not just under laboratory measuring
conditions. Therefore, the connection of a loudspeaker to the amplifier does
not deteriorate its performance or listening quality.

In addition, due to the
high quality of the output transformers used, the Dynakit’s power handling
capabilities are maintained over the entire audio band without the sharp rise
in distortion which characterizes most amplifiers at the extremes of high and
low frequencies.


Power output: 35 watts per
channel into 8Ω (stereo)

Frequency response: 10Hz
to 40kHz

Total harmonic distortion:

Damping factor: 15

Input sensitivity: 1.3V

Signal to noise ratio:

Speaker load impedance: 4Ω
to 16Ω

Valve complement: 4 x
EL34, 2 x 7199, 1 x GZ34

Dimensions: 13 x 9.5 x 6.5

Weight: 32lbs






Please refer to the images for
further info on cosmetics and be sure to ask any questions you may have prior
to bidding or purchasing. Thank you.



Shipping cost:

In the U.S. is $100 
(Alaska, Hawaii and Puerto Rico please email for rates)

Salesbaron is in Los Angeles, 90039


International buyers, please be aware that you may incur a brokerage and/or customs fee upon delivery. Winning bidder is responsible for these shipping charges.

We reserve the right to choose carrier based on shipping method selected at time of payment. Combined shipping is done at the seller’s discretion. If you purchase more than one item from us, they may arrive in separate packages.


We accept the following payment methods:

  • Paypal
  • All major credit cards
  • Cash on pick up

Please contact us if you have any questions.
Office Hours are Mon-Fri 9am-4pm and Saturdays from 9am-2pm



If for any reason you are not satisfied with your order, please contact us immediately.
Filing a claim should be reserved as a last resort to solving an issue.
Please give us a chance to solve any issues that you may have for any reason before leaving feedback.


Additional information



Custom Bundle


Country/Region of Manufacture