Lab 12 True Passive Attenuator / Input Selector


   True is a passive attenuator/input selector. It is designed to keep every detail of this low level, sensitive signal unaffected from your source to your power amplifier. Features: 

Blue Velvet ALPS Audio Grade potentiometer

High Grade Input Selector

5mm Aluminum face panel with luxury painting

Five Years Warranty

       

Specifications: 

Input impedance: 50 kohm

Output impedance: 0 – 50kohm

Available colors: Etna Black, Pearl White, Custom color

Dimension (WxHxD): 32x11x29 cm

Weight: 3,5 Kg

Lead by a passion for designing and building high-end audio devices and guided by years of experience and expertise gained, LAB 12 provides unique audio offerings.

Handling with personal care each stage of the building process, from the components selection to the final finishing details, and dedicating research time for each device makes Lab 12 confident about the final audio and aesthetic outcome.

Lab 12 HPA Tube Headphone Amplifier  


OTL Tube Headphone Amplifier / Preamplifier with USB DAC


HPA offers two analog inputs and one direct usb input, so you can potentially connect almost any device. In other words, you have a headphone amplifier and a DAC in the same device! Just connect your laptop and your headphones and enjoy your music collection without compromising the audiophile sound. You can also use the preamplifier output as it is, having a really audiophile preamplifier to connect your power amp of your system.

As every LAB12 device, the full tube OTL headphone amplifier is a solid, fully handcrafted device with luxury, metal paint finishing. 

OTL Tube Headphone Amplifier / Preamplifier with USB DAC

Most of us have experienced a situation where on the one hand we felt like listening to our favorite music and enjoying a high-quality, audiophile sound and on the other hand we struggled not to bother anyone around us or not being disrupted by activities surrounding us. In this case, it seems that more and more are considering choosing headphones as the best way to go.

Having that in our mind, we started designing a headphone amplifier, which would offer the desired sound, regardless of the quality of your headphones. It would upgrade your sound experience no matter if you use a cheap or a high quality, expensive pair of headphones.

And since we are into tubes, what else could be most suitable from offering a full tube OTL headphone amplifier?

First of all, you can use the preamplifier output as it is, having a really audiophile preamplifier to connect your power amp of your system.

And what else can you do?

HPA offers two analog inputs and one direct usb input, so you can potentially connect almost any device….

In other words, you have a headphone amplifier and a DAC in the same device! Just connect your laptop and your headphones and enjoy your music collection without compromising the audiophile sound.

As every LAB12 device, the full tube OTL headphone amplifier is a solid, fully handcrafted device with luxury, metal paint finishing. We want you to enjoy what you see as much as what you hear.

That’s why HPA have this great success and anyone who had the chance to listen to it, even for a while, just loved it…

        

Features: 

OTL tube headphone amplifier

3x 6N1P tubes (matched output pair)

Blue Velvet ALPS Potentiometer

Handcrafted audio grade transformers

Special Audio Grade parts in every stage

Five seperate regulated Power Supplies

SRSG® implementation

Gold plated Teflon rca connectors

Gold plated tube sockets

Analog retro nissei VU meter

5mm Aluminum face panel with luxury painting

2 analog, RCA line inputs

1 analog RCA line Preamp output

1 USB input

Coaxial output (from USB input)

5mm Aluminum face panel with luxury painting

Five Years Guarantee

      

Specifications: 

Power: 120V/60Hz

Power consumption: 70 VA

Input impedance: 50K ohm

Output impedance: 32-600 ohm

Frequency response: 5 Hz to 100K Hz (-3dB)

Available colors: Etna Black, Pearl White, Custom color

Dimension (WxHxD): 32x11x29 cm

Weight: 6 Kg

Lab 12 PRE1 Preamplifier

Lab12 Class A Tube Preamplifier

     

PRE1 aims at exactly the same target as all our products do, to achieve a warm, musical and most of all realistic sound that remains enjoyable even after many hours of listening. We achieved to give PRE1 a high class performance, much higher than its price range. It is a great choice to be combined with a solid state or tube power amplifier. In both ways PRE1 will give this known warm, friendly and analytical sound of LAB12.

Internally we use a matched pair of E88CC tubes in a special configuration and a solid state power supply with 4 regulation stages offering smart filtering and more than enough capacity. Dual mono philosophy and Fine Symmetry® exist in every stage of the internal circuit and of course we use SRSG® topology in this gear too. Special selected parts like MKP audio grade capacitors and resistors with 0.1% accuracy also contribute the production of the final detailed sound and the wider resolution.

PRE1 offers five analog inputs and two preamplifier outputs, so you can easily drive a bi-amping system or a power amplifier and active subwoofer(s) with no problem. Input selection can be performed by the on face rotary switch or by the remote control.

PRE1 can be purchased in our standard Matt Black or Pearl White colors but can also be available in a custom color of your choice.

      

Features: 

Toroidal power transformer

Blue Velvet ALPS potentiometer

Special Audio Grade parts in every stage

No feedback design

SRSG® implementation

fine symmetry® implementation

Gold plated Teflon rca connectors

Gold plated tube sockets

Remote control

5mm Aluminum face panel with luxury painting

Five Years Guarantee

       

Specifications: 

Power: 120V/60Hz

Power consumption: 80 VA max

Frequency responce: +0-3dB, 5Hz to 200kHz

Distortion: 0.04% at 2V RMS output

Gain: 21dB

Signal to Noise ratio: 90dB

Maximum output: 14V RMS

Input impedance: 50K ohms

Output impedance: 900 ohm

Tube complement: 2x E88CC dual triode, (tube audio circuit, solid-state power supply)

Warm up time: 1 minute

Inputs: 5x line stereo (RCA connectors)

Preamp outputs: 2xline stereo (RCA connectors)

Available colors: Matt Black, Pearl White, Custom color

Dimensions (WxHxD): 43x11x29 cm

Weight: 5 Kg