Grundig HiFi Box 303Ma
Documentation on the Grundig HiFi Box 303Ma is thin. Here is what the record shows. These are 2-way slim wall-mount loudspeakers from the German manufacturer, built as a closed box with two 130mm woofers per cabinet. They're rated at 35W into 4Ω, and period listings also cite "25/35w" handling. A listing from a European classifieds site gives dimensions of roughly 51 x 9 x 33.5 cm (W x D x H) and calls them "slim", which fits a speaker meant for the wall.
Surviving listings and owner comments suggest the 303Ma has a following among vintage Grundig enthusiasts. One Dutch classified ad from March 2025 offered a pair at €110 and noted they "hang or stand, works perfectly." A Vietnamese audio restorer commented on a YouTube video that the 303Ma is a "rare item worth collecting, a work rich in artistic character." Pairs in "fully revitalized" condition have appeared at higher prices - €484 and €598 - and the latter included a stand and leather box. A 2012 post on the Inside Hi-Fi blog (28 Mar 2012) catalogued the 303Ma with original photos. It is one of the few dedicated web resources for the model.
Beyond that, the record is silent. No production years, original pricing, frequency response, crossover details or tweeter specifications are documented anywhere in the research. The cabinet material and construction specifics also go unrecorded, though "Made in Germany" markings appear on surviving examples. Grundig was founded in Fürth in 1946 by Max Grundig and produced a wide range of hi-fi components. For a speaker of this era, the 303Ma seems to have been a modest, design-forward offering aimed at space-conscious listeners, but that's inference, not documentation.
Known specifications:
- 2-way configuration, closed box
- 2 x 130mm woofers per cabinet
- 35W power handling, 4Ω impedance (listings also cite "25/35w")
- Dimensions: approx. 51 x 9 x 33.5 cm (W x D x H)
- Made in Germany
Similar items on eBay
No exact Grundig HiFi Box 303Ma listings are live right now — these searches show current Grundig and similar vintage audio gear on eBay:
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.
Related Models
- Grundig Audiorama 4000
- Grundig Box 150
- Grundig Box 153
- Grundig BOY-Series (1956)
- Grundig OTHER-RADIOS (1955)
- Braun AUDIO-1 (1965)
- Braun AUDIO-250 (1965)
- Magnavox Component Systems (1972)
- Acoustic Research AR (1967-1976)
- Acoustic Research 11