BorderPatrol
P21 EXD
$14,450 MSRP
Push-pull 300B stereo amplifier with BorderPatrol's signature choke-input, valve-rectified external power supply, rated at 20Wpc. Reviewed by Stereophile in 2018 at $14,450.
MSRP
$14,450
Used market · Excellent
$8,500est.
-41% vs MSRP
as of Aug 16, 2026MSRP to used market
Price history will fill in as sales are recorded.
Specifications
- Type
- Tube stereo power amplifier (push-pull 300B)
- Inputs
- 2 RCA line inputs
- Outputs
- Ground, 8 ohm and 4 ohm taps per channel
- Topology
- Push-pull 300B (x4), two 6C45pi drivers; external PSU with 6AU4-GTA and EZ80 tube rectification
- Weight
- 73 lbs
- Power output
- 20W per channel into 8 ohms
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