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

12/16/2013 8:33:30 PM
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Pioneer A-70

Price: $1,279.4

Description: Pioneer A-70

Pioneer A-70

The Pioneer is the flagship stereo amp from the company and comfortably the largest amp here with a claimed 90W of Class D amplification, digital inputs and a MM/MC phonon stage as standard.

Specifications

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

Rotel RA-12

Price: $959.6

Description: Rotel RA-12

Rotel RA-12

The Rotel is the least expensive amp in the test, but this hasn’t stopped it being fitted with digital inputs, a phonon stage and iPod and Bluetooth capability all making use of its 60W of on-board power.

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

Teac AI-1000

Price: $1,279.4

Description: Teac AI-1000

Teac AI-1000

The Teac is among the most costly yet it’s the most minimalist of the amps in the test, with six line inputs and no phonon stage or digital inputs, but the 85W output is hefty enough and the casework feels very substantial.

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)

 
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