Amped Up Compares Six Mid-Priced Models (Part 2) - Pioneer A-70, Rotel RA-12, Teac AI-1000

Main Features

·         Output Power per Channel: 90W

·         Impedance at Output Level: 4 Ω - 16 Ω (A / B); 8 Ω - 32 Ω (A + B); 4 Ω - 16 Ω (Bi-wiring)

·         Number of Channels: 2

·         Input Connections: SACD/CD; Phono (MM/MC); Aux; Network; Digital Coaxial Input; Recorder; Tuner; Power Amp Direct In; USB; SR In;

·         Output Connections: Recorder; Phones; SR Out;

·         Remote Control: Multi-functional remote control

Input & Output connections

·         Digital Coaxial Input/Output: Yes

·         Headphone: Yes

·         Large speaker terminals: Yes

·         Phono Input: Yes

·         Pre-amp Output: Yes

·         Speaker A/B: Versatile speaker configuration

Audio Features

·         Bass/Treble Tone Controls: Yes

Power Output

·         Power output per channel: 90 W

·         Condition: 20 Hz - 20 kHz, THD 0,5%, 4Ω

·         Rated Power Output: 90 W per channel

·         Power Requirements: AC 220 - 230 V / 50 Hz

·         Power Consumption (in use / standby): 74 W / 0.2 W

·         Auto Power Down: Yes

Construction

·         AIR Studio Sound Tuning (+): Yes

·         Design: Separated Construction for Preamp and Power Amp; Twin Block Shield Transformer; Source Direct Mode; DAC Mode; Clean Ground Construction; Isolated Power Supply; Trans-Stabiliser; Rigid Under Base; Solid aluminium volume knob and front/ side panels; Gold-plated Speaker Terminals (large type); Gold-Plated Analogue Audio Terminals; High-Grade AC Power Cord

Amplifier Specifications

·         Amplifier: MOSFET Class D Amplifier

·         D/A Converter: ESS SABRE32 192 kHz/32-bit Audio DAC; Asynchronous 192 kHz/32-bit USB DAC

·         Dimensions (W x H x D): 435 x 141.5 x 361.5 mm

·         Weight: 17.1 kg

Specifications

·         Model: RA-12

·         Continuous Power Output: 60Watts/ch (20-20kHz, < 0.03%, 8Ω)

·         Total Harmonic Distortion (20Hz-20kHz): < 0.03% at rated power

·         Intermodulation Distortion (60 Hz:7 kHz, 4:1): < 0.03% at rated power

·         Frequency Response: Phono input 20Hz-15kHz, ±0.3dB; Line Level Inputs 10Hz-100kHz, ±1dB

·         Input Sensitivity / Impedance: Phono input 2.5mV / 47 k Ω; Line Level Inputs 150mV / 24 k Ω

·         Input Overload: Phono input 180mV; Line Level Inputs 5V

·         Preamp Output / Impedance: 1V / 470Ω

·         Tone Controls - Bass / Treble: ±4 dB at 100Hz / 10kHz

·         Signal to Noise Ratio (IHF “A” weighted): Phono input 80dB; Line Level Inputs 100dB

·         Digital Section: None

·         Frequency Response: 10Hz-95kHz ±3.0dB (MAX)

·         Signal to Noise Ratio (IHF “A” weighted): 100dB

·         Input Sensitivity / Impedance: 0 dBfs/75V

·         Pre-out/Impedance: 1.2V/470V (at -20dB)

·         Decodable Front USB/iPod Digital Signals: AAC (m4a), WAV, MP3, WMA (up to 48K 16bit)

·         Coaxial/Optical PCM: LPCM

·         File Formats: Real Audio, MP3, OGG Vorbis, WAV, AIFF and AU

·         General: None

·         Power Requirements (AC): 120V, 60Hz (USA) 230V, 50Hz (Europe)

·         Power Consumption: 300Watts

·         Standby Power Consumption 0.5W: 0.5Watts

·         Dimensions (W x H x D): 430 x 92 x 342mm (17 x 3 5/8 x 13 1/2 in)

·         Panel Height: 80mm (3 1/16 ins)

·         Weight (Net): 8.02kg (18lbs)

·         Finishes: Black, Silver

Specifications

·         Authentic Discrete Analogue Amplifier Circuit

·         6 Audio Inputs (SACD, CD, Tuner, Tape, AUX, Tone-Direct)

·         Detachable AC Socket

·         Aluminum Front Panel and Volume Knob

·         Remote Control

·         Output Power: 120W + 120W (4 ohms),  85W + 85W (8 ohms)

·         Total Harmonic Distortion: less than 0.009%

·         Signal-to-Noise Ratio: 100dB (A-weighted)

·         Frequency Response: 10Hz - 30,000Hz (-0.5dB)

·         Analogue Audio Inputs: x 6 (RCA)

·         Preout: x 1 (RCA)

·         Headphone Out: x 1 (6.3mm)

·         Speaker Terminals: x 1 pair (Binding Post)

·         Operation: 120V AC, 60Hz (US), 230V AC, 50Hz (EUR)

·         Dimensions (W x H x D): 17-1/8" x 4-5/8" x 15-7/8" (435 x 116 x 403 mm)

·         Weight: 22 lbs. (10 kg)