Pioneer - GR-333 Equalizer

Pioneer GR-333 – The Visual and Sonoral Show of the 80s

We present the legendary Pioneer GR-333, a stereo graphic equalizer famous as much for its bold look as for its ability to sculpt sound with precision.

Manufactured in 1989, this model embodies the spirit of the era: analog high-tech design, solid construction and a look that literally lights up your equipment rack. For the discerning collector, the GR-333 is not just a audio tool; it is a design piece and a time capsule from Pioneer’s golden era.

Condition and Remarks (Collector’s):
As shown in the images (and the honesty that the vintage market requires):

Provenance: Unit manufactured in Japan.
Visual Condition: Very good. The chassis is solid and the front panel well preserved. We always seek the best condition for collectible pieces.
Functional Condition: 100% operational and tested. All sliders glide smoothly and the switches (Power, Equalizer, Tape Monitor) operate with precision. The sound is clean and noise-free (within the impressive 106dB S/R).
The Light Show: ALL the LEDs on the sliders are functional and light up perfectly. This is the most critical and most valued aspect of this model.

Professional Sound Control
Beyond the visual spectacle, the GR-333 is an extremely capable acoustic adjustment tool. While standard tone controls (bass/treble) offer a limited adjustment curve, this equalizer lets you sculpt the sound with surgical precision in 7 bands per channel.

- 7 Bands per Channel: 60, 150, 400, 1k, 2.4k, 6k and 15kHz.
- Control Range: ±10dB per band, allowing fine corrections to the room’s acoustic response or to highlight specific instruments (give more punch to the kick at 60Hz, bring vocals forward at 1kHz, or make cymbals crisper at 6kHz).

It’s the ideal partner for critical listening or for “playing” with the sound, discovering new textures in your favorite music.

Technical Information (Full Spec)
For gentlemen who appreciate the details of Japanese engineering:

Type: Stereo Graphical Equalizer (Analog)
Number of Bands: 7 per channel (14 total)
Control Frequencies: 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.4 kHz, 6 kHz, 15 kHz
Control Range: ± 10 dB
Frequency Response: 5 Hz to 50 kHz (an impressive bandwidth ensuring nothing is lost)
Signal-to-Noise Ratio: 106 dB
Total Harmonic Distortion (THD): 0.03% (incredibly low, ensuring the equalizer does not color the sound when flat)
Input Sensitivity: 150 mV
Output Level: 150 mV
Gain: ± 0 dB (when sliders are at “0”, the signal passes through with no gain)
Functions: EQUALIZER ON/OFF, Tape Monitoring
Inputs and Outputs: Stereo RCA connections (Input and Tape Output)
Voltage: 220V (Original, no external transformers)
Dimensions (W x H x D): 420 mm x 60 mm x 221 mm
Weight: 2.2 kg

To deliver this product properly, it is carefully packed in very sturdy boxes, wrapped in bubble wrap with plenty of filling material. We primarily use plastic as the filling material, but if you prefer another material, please contact us. The package will be shipped with insurance to protect both the buyer and the seller. For special packaging requests, please message after purchase. Photos serve as additional description of the product’s condition / display LEDs. Please examine them carefully before purchase. Orders to remote islands or special destinations, such as the Canary Islands or Malta, will incur higher shipping costs.