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admin/db/migrations/x8_balanced_headphone_specs.sql
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2026-08-10 14:56:44 +08:00

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-- 产品详情(product_id=1)参数区块「平衡耳机输出性能参数(4.4mm/XLR4输出)」参数项
-- 区块:www_section_blocks.id=28spec_table),分组已预建:gid=5
INSERT INTO www_spec_items (spec_group_id, name_zh, name_en, value_zh, value_en, sort_order) VALUES
(5, '高增益', 'High Gain', 'L+R≥4840mW+4840mW16Ω, THD+N1%', 'L+R≥4840mW+4840mW (16Ω, THD+N < 1%)', 0),
(5, '输出阻抗', 'Output Impedance', '1Ω', '< 1Ω', 1),
(5, '总谐波失真', 'THD+N', '<−117dB (1kHz/0dB@32Ω)', '< -117dB (1kHz / 0dB @ 32Ω)', 2),
(5, '信噪比', 'SNR', '≥123dB', '≥123dB', 3),
(5, '声道分离度', 'Crosstalk', '≥119dB (1kHz@32Ω)', '≥119dB (1kHz @ 32Ω)', 4);