Can the line out be used for a powered subwoofer?

Yes. I have separate RCA outs going into a powered subwoofer. The other RCA out is routed to a power amplifier. If I remember correctly, I may have used a small, passive RCA mixer for additional routing options.

If paired with power amp which unit controls the volume ?

This T8 tube preamplifier only the main volume control, without the bass treble adjust , so you can check your require to order it,more detail can email(Sandy@aiyima.com),we can suggest you.Thanks

Can someone please tell me where to buy GE5657 vacuum tube?

You can purchase it on your locally,or other platforms, we do not sell tubes separately, thank you for your understanding

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AIYIMA T8 6N3 Digital Tube Preamplifier Bluetooth 5.0 Hi-Fi Headphone Vacuum Tube Preamp for Home Wireless Receiver Audio Decoder Preamp PC-USB DAC APTX + with Remote Control

Product ID: 372204837

Details

Item dimensions L x W x H
12.3 x 5 x
Manufacturer
AIYIMA
Maximum supply voltage
12 Volts (DC)
Minimum supply voltage
12 Volts (DC)
Mounting type
Freestanding

💡6N3 vacuum tube for warm, retro sound

🔊Bluetooth 5.0 with APTX lossless audio

🎛️Independent treble & bass gain control

¥65797

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

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Description

🎧 Elevate your sound game with vintage warmth and modern wireless freedom!

TAILORED SOUND CONTROL - Independent bass and treble adjustments let you customize your perfect audio vibe.
AUDIOPHILE GRADE TUBE WARMTH - 6N3 vacuum tube design delivers rich, immersive Hi-Fi sound with easy tube swaps.
EFFORTLESS WIRELESS WIRED USE - Stable APTX Bluetooth streaming plus USB DAC for crystal-clear digital audio.
VERSATILE HEADPHONE COMPATIBILITY - Supports 16~300Ω headphones with RCA & 3.5mm outputs for premium listening.
SEAMLESS MULTI DEVICE CONNECTIVITY - Bluetooth 5.0, USB, RCA inputs cover all your audio sources effortlessly.

The AIYIMA T8 is a premium digital tube preamplifier combining classic 6N3 vacuum tube warmth with modern Bluetooth 5.0 APTX lossless streaming and versatile USB/RCA inputs. Designed for audiophiles and professionals, it supports a wide range of headphones (16~300Ω) and offers independent bass and treble controls for personalized sound tuning. Compact and remote-controlled, it transforms any setup into a high-fidelity listening experience with seamless wireless and wired connectivity.

Specifications

ASIN	B08RHL17JK
Best Sellers Rank	#203,206 in Electronics ( See Top 100 in Electronics ) #75 in Home Audio Preamplifiers
Brand Name	AIYIMA
Customer Reviews	4.4 4.4 out of 5 stars (228)
Included Components	Remote Control
Item Dimensions	12.3 x 5 x 13.9 centimeters
Manufacturer	AIYIMA
Material Type	Aluminum
Maximum Supply Voltage	12 Volts (DC)
Minimum Supply Voltage	12 Volts (DC)
Model	B2D2518A
Mounting Type	Freestanding
Number of Channels	2
Number of Items	1
Number of Packs	1
Part Number	T8
UPC	711731345383
Unit Count	1 Count

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TrustScore 4.5 | 7,300+ reviews

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¥65797

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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Great experience from order to delivery. Highly recommended!

1 week ago

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