SONY SS-G4
¥ 49,000 (1 unit, around 1979)
Commentary
A 3-way speaker system developed at the same time as the SS-G7a and SS-G5a, inheriting the design philosophy of the G series.
It is equipped with a 25 cmCARBOCON woofer in the low range. It uses corn paper which has been thoroughly rewashed by the method of making, forming and heat treatment of corn paper, and has been upgraded by impregnation treatment.
The mid-range is equipped with an 8 cm balanced drive skoker that uses aluminum die-cast frames and magnets, which are also used in the G5.
A 2.5 cm soft dome type tweeter is installed in the high range.
In order to satisfy the requirement of not getting tired of listening and accurately expressing the subtle nuances of sound, the diaphragm of this unit is examined with film from all over the world, and it is adopted from Europe.
The network employs a non-resonant condenser and an air-core coil with excellent characteristics.
The PLUMB INLINE method is used to clarify the orientation of depth in addition to the orientation of right and left.
In this employs a unique layout in which the woofer is put forward based on a comprehensive judgment based on accumulated experiments on the shape, material and mounting position of the cone, thereby aligning the sound source position of each unit almost in a straight line.
In order to prevent the sound reflected on the baffle board from interfering with the direct sound, causing peaks and valleys at specific frequencies and sharp directional characteristics, we have adopted an Acoustic Grooved Board (AG). In the AG board, the longitudinal and lateral grooves have a diffuse effect that disperses reflected waves with high energy at specific frequencies, reducing interference with the direct sound and improving the sense of orientation.
There was a speaker stand sold separately.
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Model Rating
| Method | 3-Way, 3-Speaker, Bass reflex system, Bookshelf Type |
| Units Used | For low band : 25 cm cone type For Middle Range : 8 cm Balance Drive Type For high-pass : 2.5 cm dome type |
| Effective frequency band | 38 Hz to 20000 Hz |
| Output sound pressure level | 92dB/W/m |
| Impedance | 8 Ω |
| Rated maximum input | 80W |
| Instantaneous maximum input | 150W |
| Crossover frequency | 700 Hz, 5000 Hz |
| Level control | Medium Range : + 2 dB ~ -4dB Continuously Variable For High Frequency : + 2 dB ~ -48dB Continuously Variable |
| External dimensions | Width 380x Height 645x Depth 340 mm |
| Weight | 20kg |
| Attachment | Speaker Cord (3m) |
| Sold separately : Speaker Stand WS-G4 (1 set of 2, ¥ 7,600) | |
| External dimensions | Width 360x Height 135x Depth 320 mm |
| Weight | 5kg |