SONY TA-1150D

Commentary

This is a pre-main amplifier developed by inheriting the technology of F group, a high-end machine of Sony.

The power amplifier section uses a differential amplifier, two power supplies directly connected to all stages, and a pure complimentary service and parallel push-pull circuit.

The equalizer amplifier uses a newly developed dual FET, which is a package of two FETs with high input impedance, and combines a FET differential amplifier with a low-noise IC developed for audio.
In addition, a constant voltage circuit is installed to improve sound quality.

The flat amplifier uses a high-voltage low-noise IC.

The volume knob is designed to be a 4-channel master volume.

It uses tone control with turnover frequency switching.
The circuit uses the NFB method with good characteristics and low distortion.

All-push button type input selector is adopted.

Center channel terminal is mounted.

Built-in speaker protection circuit.

The preamp and power amp can be connected / disconnected.

Model Rating

Type	Stereo pre-main amplifier
Power Amplifier Unit
Circuit system	Direct-coupled pure complimentary service symmetric SEPP circuit
Dynamic Power (IHF)	100W (8 Ω)
Effective output (both channel drive)	35W + 35W (8 ohm, 1 khz) 30W + 30W (8 Ω, 20 Hz to 20 kHz)
Output Bandwidth Characteristics (IHF)	8 Hz to 35 kHz
Harmonic distortion factor	0.2% or Less (Rating) 0.1% or Less (at 1W)
Cross modulation distortion factor (60Hz:7kHz=4:1)	0.2% or Less (Rating) 0.1% or Less (at 1W)
Damping factor	100 or More (1 kHz, 8 Ω)
Signal-to-noise ratio	110 dB or more (IHF-A network, closed circuit)
Preamplifier Section
Phono input	Phono1, 2 : 2mV/47k Ω
Phono maximum allowable input	Phono1, 2 : 70 mV
PhonoSN ratio	Phono1, 2 : 70 dB or more (input 2 mV, B network)
Output Level / Impedance	Rec out1, 2 : 140mV/10k Ω Pre out : 0.8v/2.7k Ω
Loudness control (Volume-30dB)	+10dB(50Hz) +3dB(10kHz)
Tone control	Bass Turnover frequency 250 Hz : + / - 10 dB (50 Hz) Turnover frequency 500 Hz : + / - 10 dB (100 Hz) Treble Turnover frequency 5 kHz : ± 10 dB (20 kHz) Turnover frequency 2.5 kHz : ± 10 dB (10 kHz)
Filter	Low : 100 Hz or less, 6dB/oct. High : 5 kHz or higher, 6dB/oct.
<General>
Power outlet	Power switch interlock : 2 systems Power switch not linked : 1 system Total 500W
Power consumption	120W
External dimensions	Width 400x Height 149x Depth 316 mm
Weight	8.3kg