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admin/db/migrations/x8_xlr_output_specs.sql
2026-08-10 14:56:44 +08:00

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-- 产品详情(product_id=1)参数区块「XLR 输出音频特性」参数项
-- 区块:www_section_blocks.id=28spec_table
-- 说明:分组「XLR 输出音频特性」已预先存在(gid=3),本脚本仅补参数项;
-- 执行中发现重复建组(gid=7)已清理:参数项改挂 gid=3,重复组已删除。
-- 顺带规范了各分组 sort_order:基本规格=0、输入/输出=1、XLR=2、RCA=3、平衡耳机=4、单端耳机=5
INSERT INTO www_spec_items (spec_group_id, name_zh, name_en, value_zh, value_en, sort_order) VALUES
(3, '信噪比', 'SNR', '≥129.5dB', '≥129.5dB', 0),
(3, '总谐波失真', 'THD+N', '<−121.8dB @不加权', '< -121.8dB @ unweighted', 1),
(3, '声道分离度', 'Crosstalk', '≥133dB (1kHz@200kΩ)', '≥133dB (1kHz@200kΩ)', 2),
(3, '底噪', 'Noise Floor', '1.1uVrms', '< 1.1uVrms', 3),
(3, '线路输出电平', 'Output Level', '4.2Vrms (1kHz@200kΩ)', '4.2Vrms (1kHz@200kΩ)', 4);