Biggermouth A1 HIFI Fever Level Audio Headphone Amplifier 6J5 Tube Valve Multi-Hybrid

: In stock

: Addictronics

$51.97 Regular price $56.90

Features: Small, simple package delivering high fidelity, specially designed to provide the audiophile with the performance they deserve.Gold-plated RCA input nest to ensure smooth audio signal transmissionDrawing knob, nice...



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Small, simple package delivering high fidelity, specially designed to provide the audiophile with the performance they deserve.
Gold-plated RCA input nest to ensure smooth audio signal transmission
Drawing knob, nice & durable
The bright blue LED lights, especially at night, give you a great visual impact.
Circuit: tube buffer+Classic 47 Headphone
Using AC feedback
Two Dual-opamp
Can also be used as a Pre-AMP, when connected to computers it's best to match with DAC
Tube: 6J5 x 2
Frequency Response: 20HZ-25KHZ
Headphone Impedance: 32-300 ohm
SNR:> 100db
Channel Separation
Distortion: <0.003 ‰
Output Power: external (± 15V 500mA, 5V 5A)
Input and Output: standard 3.5mm interface
Input Power: 100V-240V~ 50/60Hz
Note: The sound volume to moderate, if too low, detail and dynamic performance does not come out; if too loud, exceeding the capacity of the headset, it will naturally break the sound.
Package Included: 
1 x Biggermouth A1 Headphone Amp
2 x 6J5 Tube
1 x AU Power Adapter1 x Plug Adapter(depending on shipping country)
1 x 3.5mm Cable

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.