4×2 XLR – 4× LCR Pan Switch – 4× Filtek-Neumann Transformer Amp

A compact 4-input stereo summing and transformer amplifier designed for analog processing and mixing applications. The unit provides four balanced XLR inputs, four individual LCR pan switches, and two balanced XLR outputs.

Each input passes through its own Filtek-Neumann transformer amplifier stage. The four transformer amplifier channels are arranged as two separated stereo paths for L/R output, with a 21-step precision attenuator providing repeatable level adjustment.

Key Features

• 4 balanced XLR inputs
• 2 balanced XLR outputs (L/R)
• 4 individual LCR pan switches
• 4 Filtek-Neumann transformer amplifier stages
• 21-step precision transformer-amp level control
• Dual separated stereo amplifier stages
• Fully balanced signal path
• External power supply – EU plug
• Custom name engraving available

LCR Pan Switching

Each mono input has its own 3-position LCR pan switch:

• LEFT – routes the signal to the left channel
• CENTER – routes the signal equally to L/R
• RIGHT – routes the signal to the right channel

This allows each of the four input channels to be positioned at a fixed Left, Center, or Right position before the stereo output stage read more about: https://vintagemaker.net/mono-channel-conversion-switch/

Transformer Amplifier

The four Filtek-Neumann transformer amplifier stages provide transformer-coupled analog signal processing between the input and output stages. The level of the transformer amplifier section is controlled by a 21-step precision attenuator, providing consistent and repeatable settings read more about: https://vintagemaker.net/filtek-summing/

Technical Details

Inputs: 4 × balanced XLR
Outputs: 2 × balanced XLR (L/R)
Pan: 4 × LCR, 3-position
Transformer stages: 4 × Filtek-Neumann
Level control: 21-step precision stepped attenuator
Amplifier configuration: 2 × separated stereo stages
Power: External power supply, EU plug

Travel plug adapter/converter may be required outside the EU.

Custom Configuration

VintageMaker units are built individually and can be adapted to specific studio requirements. Connector types, channel count, transformer configuration and other circuit options can be specified for custom builds.

Build Time: 15 working weekdays after cleared payment.

Shipping: Worldwide shipping available.