Proton - 440 Audio amplifier

06
days
04
hours
46
minutes
27
seconds
Starting bid
€ 1
No reserve price
Ariel Cabello
Expert
Selected by Ariel Cabello

Holds dual bachelor's degrees in electronics and physics with 20 years in audio engineering.

Estimate  € 150 - € 200
No bids placed

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Proton 440 mono/stereo Schotz tuner, physically excellent and tested and working, weighs 4.5 kg, 1 item with no extras.

AI-assisted summary

Description from the seller

Proton 440

The Proton 440 is a legendary stereo tuner that made a big impression in the 1980s with its exceptional reception quality. Thanks to the innovative Schotz circuit, this device is able to reproduce even the weakest radio signals clearly and without noise. The minimalist, black design with the distinctive green illumination radiates pure quality and professionalism. For audiophiles of that era, the Proton 440 was the gold standard for FM reception. The device delivers a warm and dynamic sound that pairs perfectly with the high-end amplifiers from the same iconic era.

Specifications:
Type: Mono/Stereo Schotz Tuner
Tuning bands: FM, MW
Tuning Scale: Digital
Sensitivity: 1.9uV (FM)
Signal to Noise Ratio: 75dB (Stereo)
Distortion: 0.1% (Stereo)
Frequency Response: 30Hz to 15kHz
Selectivity: 65dB
Image Rejection: 70dB
IF Rejection: 85dB

The Proton is working perfectly.
For a better impression, see photos.

Proton 440

The Proton 440 is a legendary stereo tuner that made a big impression in the 1980s with its exceptional reception quality. Thanks to the innovative Schotz circuit, this device is able to reproduce even the weakest radio signals clearly and without noise. The minimalist, black design with the distinctive green illumination radiates pure quality and professionalism. For audiophiles of that era, the Proton 440 was the gold standard for FM reception. The device delivers a warm and dynamic sound that pairs perfectly with the high-end amplifiers from the same iconic era.

Specifications:
Type: Mono/Stereo Schotz Tuner
Tuning bands: FM, MW
Tuning Scale: Digital
Sensitivity: 1.9uV (FM)
Signal to Noise Ratio: 75dB (Stereo)
Distortion: 0.1% (Stereo)
Frequency Response: 30Hz to 15kHz
Selectivity: 65dB
Image Rejection: 70dB
IF Rejection: 85dB

The Proton is working perfectly.
For a better impression, see photos.

Details

Era
1900-2000
Brand
Proton
Model
440
Physical condition
Excellent
Nr of items
1
Includes
No extra's
Weight
4.5 kg
Functional condition
Tested and working/playable
The NetherlandsVerified
3646
Objects sold
90.86%
pro

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