Adcom GTP-350

GTP-350

The true triumph of Adcom's design and production techniques lies in the radical improvement that has been brought to sensibly-priced components. Although the GTP-350 Stereo Tuner/Preamplifier is Adcom's most affordable, it has much in common with its more costly counterparts.

Both engineers and audiophiles acknowledge the superiority of Class "A" biased linear amplifiers. But it took Adcom to bring this enhancement to an affordable price range. Proprietary Adcom circuit topology affords the listener the stability, headroom, tonal balance, superior resolution and accurate spatiality once reserved for the world's very best (and most expensive) components. At other critical circuit points, discrete components are used in place of generic, off-the-shelf ICs.

The tuner section strikes the perfect balance between sonic performance and ease of use. The quartz-referenced, digitally synthesized tuning system achieves tuning accuracy of 99.99975% locking the station instantaneously without drift or signal error. Sound quality has been optimized by preventing digital control pulses from bleeding into the very sensitive sections of the tuner's front end. This virtually eliminates the synthesizer noise, distortion and phase shift all too common in other designs.

The GTP-350 interfaces perfectly with all of Adcom's legendary power amplifiers, so you need only invest in the amount of power your loudspeakers and environment dictate. Seldom have both sonic performance and value been so well served by audio technology.

Adcom GTP-350 Technical Specifications

Preamplifier Section

Output impedance
Main Outputs 475 ohms
Tape Outputs 500 ohms

Output Level (Rated) .....1.0V Output impedance .....25 kohms

Frequency Response
20Hz to 20kHz.....±0.5dB

THD+N at Rated Output
20Hz to 20kHz.....<0.0075%

IM Distortion
SMPTE.....<0.009%
CCIF from 4kHz to 20kHz .....<0.001%

Signal In Noise Ratio (Ref. to 1 volt) "A" Weighted .....<95dB

Tone Controls
Bass.....12dB
Treble.....8dB

FM Tuner Section

Usable Sensitivity (Mono) .....3 uV / 15 dBf

Quieting Sensitivity (50dB)
Mono.....3.4 uV / 22dBf
Stereo.....31 uV / 4l dBf

Signal To Noise (65dBf, "A" weighted)
Mono.....78dB
Stereo.....67dB

THD+N (1 kHz, 65dBf)
Mono.....0.085%
Stereo.....0.095%

Capture Ratio .....2.5dB

Alternate Channel Selectivity ( 400kHz) .....>75dB

Separation (at 1 kHz) .....>50dB

Frequency Response (0.5dB) .....30Hz to 15kHz

AM Tuner Section

Sensitivity ......300uV/m

Selectivity (10kHz).....>40dB

Signal To Noise (5mV/m "A" Weighted) .....>45dB

General

Power (available in 220V or 240V on special order)
120VAC/50-60Hz

Chassis Dimensions
3"(76mm) x 17"(432mm) x 11 1/2"(292mm)

Maximum Dimensions
3 1/4"(83mm) x 17"(432mm) x 12 1/4"(324mm)

Weight .....14 lbs.(6.3kg)

Weight, Packed .....16.5 lbs.(7.5kg)

Specifications subject to change without notice.