什么是黑胶压缩?

含义

黑胶压缩是由于持续的、不均匀的或过度的外部压力导致的唱片表面物理形变。这与通常由热量或环境变化引起的整体翘曲(warping)是不同的。压缩特指凹槽被物理挤压或压入,通常是由于堆叠得太紧或在重物下存放造成的。其主流等同物是物理凹槽损坏或变形。这种损坏损害了凹槽壁的完整性,导致可听的播放问题,例如表面噪音增加、失真或跳针。这是一种物理损坏,而不是一种风格特征。

对价格的影响

压缩会显著降低转售价值。出现明显压缩或可察觉的弯曲(一种相关影响)的唱片,通常比同等品相等级的平坦、无损的唱片低 30% 到 50% 的价格出售。如果压缩严重到导致持续跳针,无论其原始压制稀有度如何,唱片价值都可能降至接近于零。相反,如果一张唱片虽然压缩严重,但却是极其稀有的首版压制,如果压缩是轻微且有记录的,它可能保留一些价值,但这很少见。例如,一张品相完美的 70 年代热门爵士唱片可能卖到 \$150;同一压制但有明显压缩的唱片可能只卖到 \$80–\$100。

如何识别

压缩最好通过视觉和听觉来识别。从视觉上看,寻找唱片表面看起来凹陷的区域,或者凹槽看起来被压平或扭曲的区域,尤其是在边缘或中心标签附近。检查照片时,请要求提供整个表面的高分辨率图像,而不仅仅是标签。从听觉上看,播放唱片。压缩表现为播放过程中持续的、低级别的隆隆声或明显的“嘶嘶”声(squelch),在安静的段落中尤为明显。与表面划痕不同,压缩感觉就像音乐被物理地从凹槽中挤了出来。在存放不当的收藏中,出现这种错误是很常见的;伪造品很少见,因为压缩是存储的物理结果,而不是制造缺陷。

明智购买

除非唱片极其稀有且压缩极其轻微(几乎察觉不到),否则为有记录的压缩唱片支付溢价通常不值得。如果压缩是中度的,折扣应该反映出功能上的损害。一个公平的交易需要大幅降价——至少比完美唱片的预期市场价值便宜 25%。如果卖家声称压缩是“外观问题”,但播放受到影响,那么这笔交易就是不划算的。溢价应该只支付给*压制本身*,而不是*品相*,如果品相存在缺陷,则不应支付溢价。

明智出售

在列出有黑胶压缩的唱片时,透明度是必须的。不要隐藏这个缺陷。在描述中清楚地记录压缩情况,并附上至少一张显示形变的特写照片。准确标记品相(例如,“VG+,有轻微凹槽压缩”)。这种诚实可以避免售后纠纷,并吸引那些了解这种权衡的买家。通过提前清楚地说明缺陷,卖家管理了买家的期望,使价格能够反映实际的音质,从而获得适当的、较低的市场价格,而不是面临退货或负面评论。

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