Aiwa DM-503 (1976)
A dynamic single-channel microphone released by Aiwa in 1976 with a frequency range of 100-12,000Hz and 50kΩ impedance.
Overview
The Aiwa DM-503 is a dynamic single-channel microphone that Aiwa introduced in 1976. It is a basic microphone with a standard frequency response, made for general audio capture. It comes with a desktop microphone stand and is built to the durability typical of professional dynamic mics of the era.
Specifications
| Type | Dynamic single-channel microphone |
| Frequency range | 100–12,000Hz |
| Impedance | 50kΩ |
| Accessories | Desktop microphone stand |
Design
The design is plain and functional, like other entry-level professional microphones of the 1970s. The frequency response is standard. It is a basic microphone with no extra circuitry and no power requirements.
Market
The DM-503 is now a collectible because of its age. Listings for one or two units appear on vintage marketplaces. A pair averages around $49.89, though prices run from $15.00 to $80.00 depending on condition and quantity. Some units are missing their connectors, so modern interfaces need adapters.
Similar items on eBay
No exact Aiwa DM 503 listings are live right now — these searches show current Aiwa and similar vintage audio gear on eBay:
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.