
Conrad-Johnson
ET3SE
Introduced 2010$4,000 MSRP
The Conrad-Johnson ET3SE is an entry point into the company's vacuum-tube preamplifier range, described by reviewers as offering "a quart and a half" of the flagship GAT's sound for a fraction of the price. It uses a single 6922 triode gain stage per channel with a MOSFET output buffer, upgraded with CJD Teflon capacitors and premium metal-foil resistors versus the standard ET3.
MSRP
$4,000
Used market · Good
$2,600
-35% vs MSRP
as of Sep 1, 2026MSRP to used market
From $4,000 at launch to $2,600 today.
Specifications
- THD
- <0.15% at 1.0 Vrms output
- Gain
- 25 dB
- Price
- $4,000 without phono stage; $5,500 with built-in phono stage
- Inputs
- Six line-level inputs including one tape loop, plus a home-theater loop
- Weight
- 13 lbs
- Dimensions
- 19" W × 3.315" H × 13.125" D
- Construction
- CJD Teflon capacitors, upgraded metal-foil resistors, relay-operated discrete stepped attenuator, IR remote, champagne-anodized aluminum faceplate, 3-year limited warranty
- Maximum output
- 20 Vrms; output impedance 100 ohms
- Tube complement
- 1 × 6922 line stage; optional phono stage adds 3 × 12AX7 (high-gain) or 2 × 12AX7 + 1 × 12AU7 (low-gain)
- Frequency response
- 2 Hz to >100 kHz at unity gain
- Phono stage option
- Optional built-in vacuum-tube phono stage (essentially TEA1-derived circuit); 54 dB high-gain or 40 dB low-gain versions
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