Highland Dynamics BG1 Stereo Tube Compressor

The BG1 Stereo is a dual-channel tube compressor inspired by the classic Altec 436 and its British-modified variants. Housed in a 3U chassis, it features two independent compressors with linkable sidechain amplifiers for true stereo operation.

Each channel runs a tube complement of 4BC8, 6SN7, and 6AL5. The signal path is fully balanced throughout, with transformer-coupled inputs and outputs. All connections are balanced XLR and located on the rear panel.

What It Does

Input and Output Controls
Continuously variable input and output controls allow precise level matching and fine adjustment of compression behavior. The output control sits post output transformer and effectively acts as an output pad. Running it fully open is perfectly acceptable, with attenuation applied as needed.

600 Ω / 150 Ω Input Impedance Selector
This switch selects the input transformer tap. The 150-ohm setting delivers increased gain and added color, and can also be used to drive the compressor directly from a microphone for more character and saturation.

Serial No: #51

PSU is switchable between 115V and 230V, currently set to work on 230V. EU power cord included.

US and EU parcels ship via UPS, ETA 1-7 working days from pickup day zero. That also applies to most locations worldwide.

All shipments are fully insured.

Bigger shipments requiring pallets or custom made crates ship to US, CA, JP, CN, AU and other outside of EU locations via DHL Air Freight, ETA is normally approx. 7-14 working days from pickup day zero.

Big shipments inside EU ship via different freight companies, recently mostly via ACE Logistics. Freight forwarders can use different courier companies for deliveries to final destinations.

Palletising and crating time can vary depending on the size of the shipment and packaging queue. We pack all our shipments with great care.

You are most welcome to pick your order up yourself from our Retrosonic Pro Audio showroom, studio and warehouse in Tallinn, Estonia.

We ship worldwide – contact us for a personal shipping quote or any other questions.

VAT (Value Added Tax) can be deducted if you have a company with a valid EU VAT number or if you're based outside of the EU. Non-EU buyers pay all and any import tax and duty as regulated by their local customs.