IMPORTANT: Electrical items are covered by a 30 day EXCHANGE ONLY WARRANTY. There are no returns or refunds on such items.
Note: Bezels, knobs, faceplates, and replacement parts are non-returnable. If you are not sure as to fitment, please contact us.
Retro Manufacturing is the leading producer of audio components for the classic vehicle market. RetroSound was born from the lack of high-quality aftermarket audio offerings in the restoration marketplace. The Retrosound radio was purposefully designed to fit seamlessly into a classic application and offer modern technology with superior sound quality. RetroSound’s patented radio has become the top choice for customers seeking everyday enjoyment from their restoration project.
For over a decade, RetroSound has been providing customers with a product that is unlike anything on the market today. The product line has grown to include full audio offerings such as speakers, amplifiers, kick panels, antennas, sound dampening and more. RetroSound has also continued to improve upon their award winning radios by offering OEM licensing and industry leading technology such as Apple integration, SiriusXM compatibility, DAB+ accessibility and more.
Proudly based in Henderson, Nevada, Retro Manufacturing has been a part of the SEMA organization for the past 9 years and proactively supports the automotive restoration community and classic car enthusiasts around the globe. Retro Manufacturing is also a community sponsor of the Las Vegas Chamber of Commerce and donates to the SEMA Cares initiative.
Retro Manufacturing has been the recipient of 16 global media awards and most recently was lauded with the best new product award at the 2019 ARMO awards.
Download Name | File Size |
hermosamanual_6-30-16.pdf | 2.11MB |
Make | Model | Years |
Porsche | 356 | 1950 - 1955 |
Dimensions (radio face & push-buttons only) | 3.5”W x 1.5” H x 1.05” D |
USB Input (USB cable length, 40”) | 5V (USB female input) |
AUX 2 Input (AUX cable length, 8”) | >300 mV / 6 kΩ |
AUX 1 Input (AUX cable length, 8”) | >300 mV / 6 kΩ |
Low Level Output (4 channels) | 2.85 volts |
Output Impedance | 4-8ohm |
Output Power (@ 14.4 volts @ 4 ohm @ 1% THD) | 25x4 watts RMS 45x4 Max Power |
Current Consumption (during operation) | Max. 15A |
Power Requirements | 10.5-14.4 volts |
Dimensions (radio body) | 3.96”W x 1.98”H x 4.30”D |
Product Line | Hermosa |
Tuning Range (USA, EUR, AUS, JAP, RUS tuning capable) | 530-1710 kHz, 87.5-107.9MHz |
Frequency Response | 30-16,000 Hz |
Separation | 32 dB @ 1kHz |
Harmonic Distortion @ 1 kHz | 0.8% (stereo), 0.5% (mono) |
Signal to Noise Ratio | 62 dB (Stereo), 67 dB (mono) |
Selectivity | 75 dB @ 400kHz |
Usable Sensitivity | 12.5 dBf |
Antenna Terminal | External Antenna Connector, External Antenna Connector |