Technics SB-1204
A compact 2-way bookshelf speaker system, notable as the first product branded Technics.
Overview
The Technics SB-1204, originally released as the EAB-1204 and later nicknamed "Technics 1", was the first speaker system to bear the Technics name. It is a small 2-way, airtight bookshelf speaker designed for high-fidelity audio reproduction. The unit uses a sealed enclosure construction to minimize air leakage and improve low-frequency performance. It was later renamed from EAB-1204 to SB-1204.
Specifications
| Model Rating Method | 2-Way, 2-Speaker, Airtight Type, Bookshelf Type |
| Low Frequency Unit | 12 cm Cone Type (EAS-12PL50) |
| High Frequency Unit | Horn Type |
| Playback Frequency Band | 40 Hz to 20 kHz |
| Impedance | 8 Ω |
| Output Sound Pressure Level | 87dB/W/m |
| Allowable Input | 12W |
| Crossover Frequency | 3.5kHz |
| External Dimensions | Width 164x Height 297x Depth 210 mm |
| Weight | 4.4kg |
| Original Price | ¥18,000 (1 unit, around 1966) or ¥20,000 (1 unit, around 1971) |
Design
The SB-1204 uses a 12 cm cone-type woofer (EAS-12PL50) optimized for excellent low-frequency response in a small cabinet. A UL edge is used on the woofer to reduce mid-range distortion, while a large magnet and sealed, low-loss yoke improve efficiency and damping. The horn-type tweeter employs a lightweight, rigid polyester film diaphragm to minimize vibration system mass. The enclosure is hermetically sealed with packing to prevent air leakage between the baffle and back plate.
Context
The EAB-1204 was the first product to carry the Technics brand name and is regarded as the origin of the Technics line. It was later renamed SB-1204 and is commonly referred to as "Technics 1".
Market
The SB-1204 is listed in the used market as "中古品" (used item) and has been observed selling for $1,316.00 in tested working condition.
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