Special Order

Thermionic Culture Snow Petrel

Dual Channel all Valve Mic Preamp

Dual-channel all-valve mic preamp with distortion and EQ

Read More

CAP2: 0 £3,390.00 £2,825.00 ex VAT

AVAILABLE TO ORDER

Sold out but more on the way. Contact us for accurate delivery time and our best price.

Check Stock Availability & Get Our Best Price
Check Availability & Get Our Best Price

WHY CHOOSE TO BUY FROM KMR AUDIO?

  • 22+ Years Industry Experience
  • Rated “Excellent” By Our Customers
  • Lifetime Tech Support, Always Free
  • Easy 14 Day Returns

The Thermionic Snow Petrel is a dual-channel high-gain valve mic preamp specifically designed with low-output microphones such as ribbon microphones in mind.

The Thermionic Snow Petrel boasts two Radio Technique RTC5654 pentode valve and high-gain Svetlana EF86 pentode both made to operate as triodes to drive the gain stage and Tung-Sol 6189 double triodes to drive the Sowter output transformer. This combination of these valves and a step-up input transformer allows the Snow Petrel to deliver up to 75dB of clean gain with very low noise floor and distortion.

Originally designed with the Coles 4038 in mind the Snow Petrel features higher input impedance to preserve clarity. It can be modified with the Hi/Lo and Pad switches to suit individual microphones. 

The Snow Petrel is extremely musical and offers progressive saturation that will please users looking for obvious colouration. An Air switch brings out clarity and sheen that will complement ribbon microphones particularly well while the high-pass filter will bring proximity effect under control.

  • Extra-low noise valves with no solid state impurities in the audio path
  • Sowter's VERY special balancing transformers for the inputs and outputs
  • Higher than usual input impedance to preserve clarity
  • Hi/Lo Pad switches to tailor the input impedance to suit individual mics
  • +48 V Phantom power available
  • All valve Class A amplification
  • Controls include Switched Gain, from 40 to 75 dB; HPF to reduce 'proximity effect' and 'Air' to add that extra clarity
  • Housed in a 2U 19" rack-mounted unit
DPD UPS
  • UK over £99 FREE
  • UK under £99 £10
  • EU £36
  • Rest of World £80

Large/Heavy items: Extra charges may apply (e.g., consoles, large monitors). We’ll contact you before processing if so.

We ship with DPD and UPS across the UK, EU and worldwide. Same-day within the M25 is available depending on stock.

This item, like everything we supply, comes with the complete support of our expert team. Our excellent technicians have been specifying, building and supporting studios for over twenty years. If you have any problems with installation, setup or everyday use, they’re never more than a click away, and always happy to help.

You can contact them here.

Thermionic Culture Snow Petrel

Thermionic Culture Snow Petrel

Dual Channel all Valve Mic Preamp

AVAILABLE TO ORDER

KEY BENEFITS

High-Gain Valve Design

The Thermionic Snow Petrel utilizes Radio Technique RTC5654 and Svetlana EF86 pentode valves in a triode configuration, delivering up to 75dB of clean, low-distortion gain, ideal for low-output microphones.

Adaptable Input Impedance

This preamp features higher input impedance and flexible Hi/Lo and Pad switches, allowing for tailored modifications to suit different microphone characteristics and preserve audio clarity.

Enhanced Audio Features

Includes an Air switch to enhance clarity and sheen, particularly complementing ribbon microphones, along with a high-pass filter to effectively manage the proximity effect for more controlled sound output.