请教一下胜利V711与V721有什么区别

godzzi

请教一下各位烧友胜利V721与V711有什么区别，是在V711基础上做了优化升级了吗？两者在录音和放音上有区别吗？

taojiansh

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https://www.jdbbs.com/thread-5651929-7-2.html

711 721 二选一，有钱721

d6x

差别很大，811理论上录音更好一点，因为是sa磁头，录音理想磁头，721就比较一般没啥特点音质一般但强处在于它比较容易修

taojiansh

VICTOR/JVC TD-V711 ¥ 85,000 (around 1987)
Three independent heads are used in the head section. The recording head is an SA head with high magnetic flux density and excellent magnetic saturation characteristics, and the reproducing head is an amorphous head with excellent high-frequency characteristics.

The bias frequency 按照维修手册是 95KHZ

Heads        Recording : SAs Playback : amorphous  Erasing : 2-gap ferrite


VICTOR/JVC TD-V721 ¥ 87,000 (around 1988)
Newly developed fine amorphous is used for the head material. This head combines the characteristics of SA head with excellent magnetic characteristics and abrasion resistance with amorphous with excellent high-frequency characteristics to achieve well-balanced head characteristics.

The bias frequency is set to 210 kHz (erase 105 kHz) to suppress the beat with the signal current.

Heads        Recording : amorphous  Playback : amorphous  Erasing : 2-gap ferrite

VICTOR/JVC TD-V711¥85,000(1987年左右)

头段使用三个独立的头。记录磁头为具有高磁通密度和优异磁饱和特性的SA磁头，再现磁头为具有优异高频特性的非晶磁头。

偏磁频率: 按照维修手册是 95KHZ

磁头材料 Recording : SAs Playback :amorphous  Erasing : 2-gap ferrite

VICTOR/JVC TD-V721¥87,000(1988年左右)

头部材料采用新开发的精细非晶材料。该磁头结合了SA磁头优异的磁性和耐磨性，以及非晶优异的高频特性，实现了良好平衡的磁头特性。

偏磁频率设定为210khz(消除105khz)，抑制与信号电流的节拍。

磁头材料  Recording : amorphous  Playback : amorphous  Erasing : 2-gap ferrite