Legendary Vintage Leak stereo Delta 70 amplifier brilliant little amp and sounds wonderfull Tube like warmth and depth in great condition

They don’t make them like this anymore
Sounds amazing huge power from this
As its the 70 as in 70 watts

Highly sought-after and acclaimed hifi piece

No Offers please
This is the cheapest one currently a available
As going for a lot more fully working


The Leak Delta 70 is a classic vintage British integrated amplifier produced in the early 1970s. It was released after the Rank Organisation took over the iconic H.J. Leak & Co. in 1969. [1, 2]

Core Technical Specifications & Design

Internally, the Delta 70 is identical to the earlier Leak Stereo 70. The main differences are external: it featured a redesigned front fascia, a teak wood sleeve, and updated speaker output sockets. [1, 2, 3, 4]

Power Output: Offers roughly 35 watts per channel into 8 ohms (the "70" in the name represents the total combined wattage of both channels).

Circuit Design: It utilizes a capacitively coupled output stage and features 2N3055 power transistors driven by modular, single-sided plug-in circuit boards. [1, 2]

Inputs: Includes connections for two turntables (Disc 1 and 2/Phono with passive EQ), two tuners, a tape replay input, and a front-panel headphone jack. [1, 2]

High Input Gain: Typical for 1970s gear, the inputs have very high gain. When connecting modern line-level sources (like a phone, DAC, or Bluetooth streamer), owners usually use the Tuner 1 (low gain) or Tape input to avoid distorting the preamp stage. [1]