Aiwa CS-770
The CS-770 boombox was built by Aiwa in 1981. By that time, Aiwa had begun moving away from smaller radios like the TPR series, in favor of larger, flashier models. As a result, there's more empty space inside, and there's no inner chassis....just a front and rear case with the circuit boards attached. Between the speakers, there's a small digital screen for the programmable music search feature, and a button for Dynamic Super Loudness (Aiwa's bass-boosting circuit).
I've seen several conflicting output power claims for this model, but if you look at the schematic, it has one Panasonic AN7146 amplifier chip (the CS-880 has two). And according to the spec sheet for that amp, this boombox will make about 2x5 watts at 10% distortion. So, this isn't a very powerful model, BUT it has the same fantastic tape deck used in the CS-880......a very smooth soft-touch unit that runs more stable than many home hifi decks do!
Specifications:
- 586(W) x 310(H) x 212(D) mm
- 16cm woofers, 5cm tweeters
- Wow and flutter: Less than 0.038% WRMS (that's home hifi territory!)
- Tape frequency response: 35 to 16,000 Hz when using Metal tape
- Line In sensitivity/impedance: 150mV/47kΩ
- Phono sensitivity/impedance: 4mV/47kΩ
- Available versions: CS-770H, CS-770HG, CS-770U, CS-770UC