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BSR 310X
¥ 24,800 (around the early 1970 s)
Commentary
A 4-speed record player with an auto-changer mechanism.
A 4-pole synchronous motor is used for the turntable part.
Equipped with mechanical queuing, it is easy to drop the needle to the desired position and to temporarily suspend the performance.
It is designed to be jam proof and has improved durability.
For example, if you move the arm carelessly while holding it in your hand, it will interfere with the interlocking mechanism or cause a locked object to fly away. The danger that is often seen with conventional auto players and auto-changers is prevented.
The speed selector is designed to automatically turn off at the end of the performance without turning off the speed selector.
At this time, the internal mechanism automatically returns to the neutral position even if the position is set to 33 or 45 rotations, so that there is no need to worry about deformation due to the pulley or rim being in the ON state.
The cartridge is equipped with M75-6S manufactured by Shure as standard.
The auto-changer has a control arm hold records horizontally when they are used with several records. On the 310X, clearance is provided so that this arm does not touch the sound groove.
Equipped with a manual arm lock mechanism, the arm does not fly due to vibration and damage the needle tip or record.
Equipped with anti-skating mechanism, cancel amount corresponding to cone needle can be set.
A walnut cabinet is used for the cabinet.
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Model Rating
| Type | Record player |
| <Body> | |
| Motor | 4-pole synchronous motor |
| Wow | Not more than 0.2% |
| Flutter | Not more than 0.06% |
| Turntable | 25.5 cm Aluminum Die-cast |
| Needle pressure adjustment range | 0 ~ 6g |
| Number of revolutions | 16, 33 1/3, 45, 78 rpm |
| Cartridge Section | |
| Model Name | Shure M75-6S |
| Frequency characteristic | 20 Hz to 20 kHz |
| Output voltage | 6.2 mv (5cm/sec, 1 khz) |
| Channel separation | 25 dB or More (1 kHz) |
| DC resistance | 630 Ω |
| Proper needle pressure | 2.5g |
| Exchange needle | N75-6M |
| <Others> | |
| External dimensions | Width 500x Height 195x Depth 375 mm |
| Attachment | Auto spindle Manual spindle 45 Rotation Adapter |
