Lehmann Audio Linear II Headphone Amplifier
- Free Mainland UK Shipping on orders over £100
- Official Hi-Fi Retailer since 1973
- Usually in stock and dispatched in 1-5 working days
We offer free delivery on all orders over £100 to mainland UK. Orders under £100 are subject to a £6.50 shipping charge.
Delivery is available across mainland UK. If you are located outside mainland UK and would like a shipping quote, please get in touch before placing your order.
We aim to dispatch in-stock items as soon as possible provided that we physically have the stock - but please note that sometimes we have to order from our supplier for certain products, in which case delivery should take place within 1-5 working days of the order being placed.
Tracking details or estimated delivery timescales will be provided once your order has been processed. If there are any delays due to stock availability, we will contact you as soon as possible with the option to wait or receive a full refund.
Please note that certain products may be subject to specific distance selling or delivery regulations. If you are unsure about a product or its delivery terms, we recommend contacting us before purchase.
You can cancel your order within 14 days of receiving your goods, in line with UK distance selling regulations. Once you’ve notified us, you have a further 14 days to return the item. Please contact us by email, phone or in writing before sending anything back.
Items must be returned in original condition and packaging, including all accessories, manuals and any promotional items. The cost of return is your responsibility and we strongly recommend insuring the goods, as refunds cannot be issued for damaged or incomplete returns. If items show excessive handling, are missing components, or cannot be resold as new, a reasonable deduction may be made.
Please note that used headphones (for hygiene reasons) and custom or special-order items cannot be returned. If you need assistance arranging a return, we’re always happy to help.
Product Summary
The Lehmann Audio Linear II is a premium headphone amplifier and preamplifier designed for listeners who want a serious step up from the headphone output of a typical DAC, amplifier or computer. It builds on the long-standing reputation of the original Linear, but raises performance further with an upgraded analogue stage and more refined internal parts specification.
What makes the Linear II especially appealing is its straightforward, sound-first approach. Rather than loading the unit with unnecessary features, Lehmann has focused on careful analogue headphone amplification, a powerful Class A output stage and upgraded internal components aimed at improving dynamics, clarity and overall musical ease.
The Linear II is also flexible enough to fit naturally into a wider hi-fi system. It can be used purely as a dedicated headphone amplifier, but it also includes pre-out connections so it can serve as a compact preamplifier with active speakers or a power amplifier. It is an excellent choice for customers who want high-end headphone performance in a compact, elegant and system-friendly design.
Key Benefits
- High-end headphone amplifier for more serious private listening
- Designed to get the best from a wide range of high-quality headphones
- Selectable gain makes it easier to match the amplifier to different headphone sensitivities
- Class A output stage helps deliver a more dynamic and effortless sound
- Upgraded internal parts are designed to improve clarity, imaging and transient response
- Two parallel headphone outputs allow two listeners to plug in at once
- Pre-out connections add useful flexibility for active speakers or wider system integration
- Compact casework makes it easy to use on a desk, shelf or hi-fi rack
- 2 years manufacturers' warranty
Technical Specifications
Amplifier Design
- Product Type: Headphone amplifier and preamplifier
- Amplifier Stage: Class A output stage
- PCB Design: Low-Z copper technology
- Key Components: Mundorf capacitors in power supply and signal path, 3S device feet
- Input Impedance: 47 kOhm
- Selectable Gain: 0 dB, 10 dB, 18 dB, 20 dB via DIP switches
- Frequency Response: 10 Hz (-0.3 dB) to 35 kHz (-1 dB)
- Signal-to-Noise Ratio: More than 100 dB at gain 0 dB
- THD: Less than 0.001% at 6 mW / 300 Ohm
- Channel Separation: More than 70 dB at 10 kHz
Inputs & Outputs
- Analogue Input: 1 x stereo RCA input pair
- Headphone Outputs: 2 x Neutrik 6.35 mm headphone outputs with gold-plated contacts
- Pre-Out: 1 x stereo RCA output pair with Teflon-insulated sockets
- Output Impedance: 60 Ohm pre-out, 5 Ohm headphone output
Output Power
- Output Power: 400 mW into 60 Ohm
- Output Power: 200 mW into 300 Ohm
Colour Options
- Silver
- Black
Power & Physical
- Power Consumption: 10 W
- Dimensions (W × D × H): 110 x 280 x 50 mm
- Weight: 1.5 kg net
What’s in the Box
- Lehmann Audio Linear II headphone amplifier
- Power cable
- User manual
