Can i use this amp to bypass my knackered active amp ie just usse the shell and connect direct to the speaker?

Yes I bought it to do this myself just had to open the sub and disconnect the plate amp. Used the speaker connections for convenience wired to be a passive sub.

Can I use this amplifier with active subwoofer only? (Without connecting anything to speaker output?)

No it need a full range speaker and then used with an active sub woofer

Can this work with tpa3116 amplifier (ns-15g) and nobsound 6j2 vacuum tube preamplifier? i want to add a subwoofer to my hi fi.

as long as your current amplifier has a sub out channel or any such output that can provide a signal such as a tape out.

Can i connect a 100 w bookshelf speaker and 150w active subwoofer in the full frequency mode ? at the same time ? thx

In full frequency mode the unit is just a straight forward amp and will drive a passive bookshelf as normal. Since you are using an active sub it will tap of the signal going to the bookshelf again as normal.

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Nobsound G2 PRO

Product ID: 145214571

Details

Manufacturer
Nobsound
Maximum supply voltage
35 Volts
Minimum supply voltage
24 Volts (DC)
Mounting type
Freestanding
Voltage
24 Volts (DC)

⚡300W max power output

🔄Dual PBTL/SUB mode switch

🎚️Adjustable gain & crossover freq.

2376 kr

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Sold byAmazon NorwayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎵 Small Size, Massive Impact – Feel Every Beat Like Never Before!

PRECISION BASS TUNING - Fine-tune your low-end with adjustable crossover frequencies from 40Hz to 300Hz for crystal-clear bass.
COMPACT YET COMMANDING - Miniature footprint with a sleek aluminum chassis that fits stylishly into any modern home theater setup.
POWER THAT PACKS A PUNCH - Delivers a robust 300W output to drive any passive speaker or subwoofer with ease.
BUILT TO PROTECT PERFORM - Integrated speaker protection and low-pass filter ensure distortion-free, high-fidelity sound at all volumes.
VERSATILITY AT YOUR FINGERTIPS - Switch seamlessly between full-frequency and dedicated subwoofer modes for ultimate audio control.

The Nobsound G2 PRO is a compact, high-power 300W Class D mono amplifier designed for both passive speakers and active subwoofers. Featuring a versatile PBTL/SUB switch, adjustable gain and crossover frequency, and a durable aluminum chassis, it delivers premium HiFi sound with built-in protection circuits. Perfect for audiophiles seeking powerful bass control in a sleek, space-saving design.

Specifications

ASIN	B07TTMN51V
Best Sellers Rank	35,741 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 173 in Hi-Fi Amplifiers
Brand	Nobsound
Country Of Origin	China
Customer Reviews	4.2 out of 5 stars 223 Reviews
Included Components	1* G2 PRO Mono Power Amplifier
Item Weight	0.5 Kilograms
Manufacturer	Nobsound
Manufacturer Part Number	DZ072_UK
Material	Metal
Maximum Output Power	300 watts
Maximum Supply Voltage	35 Volts
Maximum supply voltage	35 Volts
Minimum Supply Voltage	24 Volts (DC)
Minimum supply voltage	24 Volts (DC)
Model Number	DZ072_UK
Mounting Type	Freestanding
Mounting type	Freestanding
Number of Channels	1
Number of Items	1
Number of Packs	1
Output Power	300 Watts
Package Type Name	Cardboard Box
Product Warranty	1 YEAR
Specification Met	CE
Supply Current	5 Amps
Unit Count	1.0 count
Voltage	24 Volts (DC)

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2376 kr

Duties & taxes included

In stock

Sold byAmazon NorwayDelivered 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 Norway.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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