Sony SEQ-333ES
Sony SEQ-333ES
Sony SEQ‑333ES — What It Is
The Sony SEQ‑333ES is a 10‑band premium ES‑series graphic equalizer from the late ’80s, known for its automatic sound‑field correction, real‑time analyzer display, and studio‑grade build.
It’s highly sought after today by audiophiles, collectors, and vintage ES‑series fans.
Technical Highlights
• 10‑band graphic EQ with center frequencies: 31.5 Hz → 16 kHz
• ±12 dB adjustment range
• Automatic sound‑field correction using included mic & pink‑noise generator
• Real‑time analyzer display
• Store up to 4 custom EQ curves
• 3 engineer‑tuned presets + Flat mode
• S/N ratio: 107 dB (flat)
• Dimensions: 430 × 105 × 275 mm
• Weight: ~5 kg
Audiophile Specs
• Frequency response: 10 Hz – 100 kHz
• THD: 0.0015%
• Input/Output level: 245 mV
Why Collectors Love It
• Part of Sony’s ES (Elevated Standard) golden era
• Rare, especially with wood side panels
• One of the earliest EQs with auto‑room correction
• Matches beautifully with ES amps like TA‑F333ESX, TA‑N80ES, TA‑E1000ESD.
Look and review the picture very careful, some light scratches from the age but this equipment has been never opened after factory assembly, all screw can be special sealed to warranty the refund in case that the buyer return it.
Free insurance and adult sign on delivery can be offered to U.S.A buyer only.
Returns and refunds 100% will be accepted after arriving and inspected always if the item is returned in its original packaging, free from internal tampering.