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Realistic SA-150

Stereo Integrated Amplifier (1984)

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Realistic SA-150


Power output: 1.8 watts per channel into 8Ω (stereo)

Frequency response: 20Hz to 25kHz

Total harmonic distortion: 1%

Input sensitivity: 2.5mV (MM), 200mV (ceramic), 160mV (line)

Output: 150mV (line)

Speaker load impedance: 8Ω to 16Ω

Semiconductors: 4 x transistors, 2 x diodes, 1 x LED, 1 x IC

Dimensions: 89 x 236 x 175mm

Year: 1984



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Reviewed Oct 29th, 2018 by Jim Libert

Super little amp for its wattage.
Only drawback is RCA speaker outputs.

Reviewed May 06th, 2018 by Hvan_51_fr

This small amplifier seems to be the successor of the SA102 that I own also. Like it's predecessor, the SA150 provides three selectable RCA input with one for phono RIAA, balance and tone buttons, earphone plug.
The circuitry is not the same (Tandy replaced most transistors by one IC (LA4440).
Good sound, Inexpensive. SA102 is a little bit better.
Don't worry about small power of these amplifiers : they do the job.



re: SA-150

Realistic SA-150 (cat. no. 31-1955) is a restyled version of its predecessor, SA-102. Early SA-102 (31-1963) has discrete transistor circuits and was listed at US $79.95. Later version SA-102 (31-1963A) employs the monolithic IC LA4440 amplifier and price was reduced to US $59.95. The chip amp rendered SA-102 into a mostly empty box due to parts reduction.

SA-150 leveraged this into a slimmer, more compact form factor. It launched in 1985 at the same $59.95 retail, and carried on at that price throughout its 9 year run. Both price and form factor were then bequeathed to its very similar successor, SA-155.

LA4440 can play into 2 Ohms (stereo) and is rated for 6 Watts per channel into 4 Ohms (or 19 Watts BTL mono) -- though at a high 10% THD. Tandy/Radio Shack chose to rate their LA4440 based integrated amps at 1.8 wpc into 8 Ohms for a much cleaner 1% THD.

SA-150 has two matching tuners. AM/FM Stereo TM-150 (31-1956) was offered for the full 9 year run. AM Stereo TM-152 (31-1967) was offered two years only: 1986 and 1987. Apparently Motorola's C-QUAM didn't excite the consumer market in a lasting way.

This website is not affiliated with or sponsored by Realistic. To purchase SA-150 spares or accessories, please contact the company via their website or visit an authorised retailer.