Whirlwind's transformers are the product 
of our desire to supply the highest quality 
transformers at fair prices. Constructed to 
rigid quality-control specifications, they are 
used in the most demanding audio applications 
in both recording and live sound. We designed 
our transformers from the ground up. New core 
and housing materials, special windings, 
Faraday shielding, high level-handling capabilities, 
and frequency  response were all considerations in design. 
As a result, we offer three types that  fit any audio 
transformer application. The TRHL series is designed to 
convert high impedance signals to low impedance, 
and the TRSP-1 and TRSP-2 facilitate microphone 
isolation and splitting. The TRSP-600 is designed for 
isolating and balancing line level audio signals.

Click checkboxes and set quantity box to select items for your shopping cart.

Dimension in Inches
TRHLN/A .750 1.375 1.625
TRHL-M .938 1.375 1.172 1.406
TRSP-1 .938 1.375 1.172 1.406
TRSP-2 .938 1.375 1.172 1.406
TRSP-600L N/A 1.200 1.75 2.060

Model Price/Quantity Model Price/Quantity
TRHL $24.96
Item: Quantity:

TRSP1 $70.53
Item: Quantity:

TRHLM $59.02
Item: Quantity:

TRSP1F $74.10
Item: Quantity:

TRSP600L $46.37
Item: Quantity:

TRSP2F $100.82
Item: Quantity:

Click checkboxes and set quantity box to select items for your shopping cart. When finished, click "Add to Shopping Cart" button below to add items to shopping cart.

When finished shopping, click on Checkout1.gif on any page.

ModelInput ImpedanceOutput InpedanceFrequncy ResponseTHD@ 1kHzMax Input*Max Input@20HzNo. of InputsNo. of OutputsPri to
Sec Loss
Mu Metal CanFaraday Shield
TRHL 20Oohms 150ohms 20-20kHz .05% +16dBu N/A 1 1 22dB No Yes
TRHL-M 20ohms 150ohms 20-20kHz .05% +16dBu N/A 1 1 22dB Yes Yes
TRSP-1 150ohms 150ohms 20-20kHz .01% +16dBu -.5dBu 1 1 .35dB Yes No
TRSP-2 150ohms 150ohms 20-20kHz .07% +8dBu -10dBu 1 2 3.5dB Yes Yes
TRSP-600L 600ohms 600ohms 20-20kHz .005% +26dBu +20dBu 1 1 1.5dB NoNo
150ohms (Dual Secondary Mode)26.0dB

*100 Hz to 20kHz; All measurements at 0dBv = .775VRMS;
THD measured at 0dBu except TRSP-2 at -30 dBu and TRSP-600 at +10dBu.

1ST Audio USA