Can this be hooked up to my denon surround receiver

You can use this for one source (i.e. CD player) on any receiver that has inputs. You would just run the RCA out from the source to the spectrum analyzer, then the RCA out from the analyzer to an input on the receiver. Ideally, you want your receiver to have pre-out and pre-in connections, where you would run the pre-out to the spectrum analyzer, then spectrum analyzer's out to the receiver's pre-in. Then it would work for all sources inputting to the receiver.

If this device is switched off, is the audio signal still passed on?

No, the device passthrough outputs turn off too. Best you can do is turn the sensitivity all the way down and leave it on if you need the passthrough.

Item shows choice of green, blue and white leds. can the led color be changed?

No, the lights cannot be changed. You would have to buy a unit that comes in that color. The only things that you have an ability to change are the brightness and sensitivity.

Can you switch the display between left and right signals? Or would I need two of these to monitor both left and right signals?

The PP-31 mixes the two inputs down into one. There is no switch to display each input separately; you'll need two PP-31's to do that.

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BDS PP-31 Green Digital Audio Spectrum Analyzer Display 1U Music Spectrum VU Meter 31 Segments

Product ID: 428304536

Details

Item dimensions L x W x H
21.26 x 7.87 x
Manufacturer
TZT
Maximum Supply Voltage
260
Minimum Supply Voltage
90
Mounting Type
Rack Mount

⚡Supports 90-260V AC power range

📊31-band real-time spectrum display

🔌XLR & RCA input/output compatibility

€ 470.56

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Description

🎛️ Elevate your sound game with precision and style!

ROBUST POWER RANGE - Operates reliably from 90V to 260V AC for global studio environments
COMPACT 1 U RACK DESIGN - Sleek, space-saving chassis fits seamlessly into professional setups
VERSATILE CONNECTIVITY - XLR and RCA sockets ensure flawless integration with pro audio gear
PRECISION 31 BAND SPECTRUM - Visualize every frequency with ultra-clear real-time analysis
DYNAMIC LED BRIGHTNESS CONTROL - Customize your display’s glow to match any studio vibe or lighting

The BDS PP-31 is a professional-grade 31-segment digital audio spectrum analyzer designed for rack mounting in a slim 1U chassis. It delivers real-time frequency visualization with adjustable LED brightness and supports both XLR and RCA inputs/outputs. Operating across a wide voltage range (90-260V AC), it’s engineered for reliable performance in diverse audio environments.

Specifications

ASIN	B09SQ1XGZY
Best Sellers Rank	#273,337 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #58 in Spectrum Analyzers
Brand Name	TZT
Customer Reviews	4.2 4.2 out of 5 stars (55)
Item Dimensions	21.26 x 7.87 x 3.54 inches
Manufacturer	TZT
Material Type	Electronic Components
Maximum Output Power	10W
Maximum Supply Voltage	260 volts_of_alternating_current
Minimum Supply Voltage	90 volts_of_alternating_current
Model	PP-31
Mounting Type	Rack Mount
Number of Channels	31
Package Type Name	Box
Part Number	PP-31
Specification Met	General Amplifier Specifications
UPC	676351449142
Unit Count	1 Count

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€ 470.56

Duties & taxes included

In stock

Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Belgium.

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TrustScore 4.5 | 7,300+ reviews

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