GTP-400 vs NAD 114
The 114's signal-to-noise is 98 dB against the GTP-400's 95 dB, its thd 0.020% against 0.010%, its output impedance 220Ω against 100Ω, and its input sensitivity 0.5V RMS against 0.8V RMS.
AI-generated product photo — not official manufacturer imagery.
AmplifiersPre-AmplifiersTunersDiscontinued
Estimated price (community-sourced)
$200
Around — community and catalog average, updates slowly
About the GTP-400
The Adcom GTP-400 is a high-performance tuner/preamplifier that separates low-current preamp circuitry from high-current power amps for superior sonic quality. Produced around 1988-1989 with some sources noting 1996, it features proprietary Class A linear-gain amplifiers, precise RIAA equalization for MM phono cartridges, feedback tone controls, separate recording selector, and compatibility with Adcom GFA-535 (60W/ch), GFA-545 (100W/ch), GFA-555 (200W/ch), or bridged mono setups up to 600W/ch. Inputs include phono, tuner, tape 1, tape 2/video, CD; controls for volume, balance, bass, treble, contour, mono, mute. Noted for excellent dynamics, bass control, low noise, though tuner section may have alignment issues in some units. MSRP was $400; now a vintage collectible.
Specifications
Analog Output
Analog signal output specifications
- THD
- 0.010%
- SNR
- 95 dB
- Output Impedance
- 100Ω
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- Phono, Tuner, Tape 1, Tape 2/Video, CD/Recording
- Analog Outputs
- Main Out, Pre Out, Switched AC Outlets, Unswitched AC Outlets
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 432 × 80 × 325 mm (W × H × D)
- Weight
- 6.8 kg (15 lbs)
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions