Rotel Amplifiers


http://www.rotel.com/product/rb-1552-mkii

RB-1552 MkII is built upon the same platform as the RB-1582 MkII with only a slightly smaller power output capability at 2 x 130 Watts. The RB-1552 MkII is a 130 Watt per channel class AB amplifier.

Notable features of the amplifier include independent left and right power rectification stages and decoupling. The layout is essentially a mono block design. Input options are balanced XLR or unbalanced RCA connectors.

DIMENSIONS (W × H × D) 17″ × 5.7″ × 13.4″
POWER CONSUMPTION 400W
STANDBY POWER CONSUMPTION 0.5W
NET WEIGHT12.4kg (27lbs.)
CONTINUOUS POWER OUTPUT 130W/Ch (All channels driven, 8Ω)
TOTAL HARMONIC DISTORTION (THD)(20Hz–20kHz) <0.03%
FREQUENCY RESPONSE 10Hz – 100kHz ±0.5dB
SPEAKER IMPEDANCE 4Ω minimum
INPUT IMPEDANCE
Line Level Inputs (RCA): 12kΩ
Line Level Inputs (XLR): 100kΩ

RB-1572

http://www.rotel.com/product/rb-1572

DIMENSIONS (W × H × D) 17″ × 3.9″ × 13.4″
POWER CONSUMPTION 280W
STANDBY POWER CONSUMPTION 5W
NET WEIGHT 7.8kg (17lbs.)
CONTINUOUS POWER OUTPUT 250W/Ch (All channels driven, 8Ω)
TOTAL HARMONIC DISTORTION (THD)(20Hz–20kHz) <0.03%
FREQUENCY RESPONSE 10Hz – 80kHz ±1dB
S/N RATIO (IHF “A” Weighted) 109dB GAIN27.1dB
SPEAKER IMPEDANCE 4Ω minimum
INPUT SENSITIVITY 1.25V
INPUT IMPEDANCE 8.3kΩ

RB-1582 Mk II

http://www.rotel.com/product/rb-1582-mkii
Rotel’s next largest stereo amplifier at 200 Watts per channel.

The RB-1582 MkII’s high-end performance begins with an extremely large toroidal transformer combined with a total of 60,000µF storage capacity in special “slit foil” capacitors to provide completely stable power to the output stage. Both left and right channel construction are laid out in a mono block design (after the toroidal transformer) and all grounding is terminated in a star pattern on a copper grounding plate to ensure low signal to noise. The output stage is a discrete design that consists of 10 high current bipolar transistors per channel. Input options consist of both balanced XLR and unbalanced RCA connectors.

DIMENSIONS (W × H × D) 17″ × 5.7″ × 16″
POWER CONSUMPTION 550W
STANDBY POWER CONSUMPTION 0.5W
NET WEIGHT 17.6kg (39lbs.)
CONTINUOUS POWER OUTPUT 200W/Ch (All channels driven, 8Ω)
TOTAL HARMONIC DISTORTION (THD)(20Hz–20kHz) <0.03%
FREQUENCY RESPONSE10Hz – 100kHz ±0.5dB
S/N RATIO (IHF “A” Weighted) 116dB
GAIN RCA: 26.5dBXLR: 22.5dB
SPEAKER IMPEDANCE 4Ω minimum
INPUT IMPEDANCE
Line Level Inputs (RCA): 12kΩ
Line Level Inputs (XLR): 100kΩ

RB-1590

http://www.rotel.com/product/rb-1590 
The RB-1590 is at the top of its class as a 2 x 350 Watts stereo amplifier with dual toroidal transformers and special slit foil capacitors.

Rotel’s new Class AB stereo power amplifier is rated at 350 Watts per channel into 8 ohms both channels driven.  The capabilities of this amplifier begin with a solid foundation consisting of twin massive toroidal transformers custom made by Rotel. These transformers are just part of a rock-solid power supply that includes eight special British made BHC capacitors, known for their low loss and quick response times.

Features include: XLR Balanced and RCA input connections, two pair of 5-way speaker binding posts, 12-volt trigger control, thermal protection circuitry, overcurrent, over-voltage protection circuitry, dual staged power on relay to reduce surge current and extend longevity, and a detachable IEC power cord all in a 5U chassis.

DIMENSIONS (W × H × D) 17″ × 9.75″ × 17.9″
POWER CONSUMPTION 800W
STANDBY POWER CONSUMPTION 0.5W
NET WEIGHT 38.1kg (84lbs.)
CONTINUOUS POWER OUTPUT 350W/Ch (All channels driven, 8Ω)
TOTAL HARMONIC DISTORTION (THD)(20Hz–20kHz) <0.03%
FREQUENCY RESPONSE10Hz – 100kHz ±0.5dB
S/N RATIO (IHF “A” Weighted) 120dB
GAIN RCA: 27.5dBXLR: 23.5dB
INTERMODULATION DISTORTION (60Hz:7kHz, 4:1) <0.03%
SPEAKER IMPEDANCE 4Ω minimum
INPUT IMPEDANCE
Line Level Inputs (RCA): 12kΩ
Line Level Inputs (XLR): 100kΩ

(Integrated Amplifiers on next page)

Emotiva Amplifiers


XPA-1 DIFFERENTIAL REFERENCE CLASS A/AB MONOBLOCK POWER AMPLIFIER
 https://emotiva.com/products/amplifiers/xpa-1
Fully discrete, fully balanced, Differential Reference™ design
Switchable Class A and Class A/B operating modes
Massive, high current toroidal power supply
Advanced microprocessor operating system which protects the amplifier from all fault conditions.
Balanced and unbalanced inputs.
Trigger input and output.
Precision blue LED power meter with switchable modes, dimmable or defeatable.
Machined, gold plated, unbalanced RCA input .
Heavy duty, gold plated, clear jacketed audiophile speaker binding posts.
Soft-touch power switch.
Solid milled aluminum faceplate.
Automatic 120/230 AC voltage detection and switching
Topology: fully balanced, fully discrete, quad differential, ultra high current, short signal path selectable Class A/AB
Number of channels: 1
Power output (0.1% THD):
1,000 watts RMS @ 4 ohms
600 watts RMS @ 8 ohms
Rated power bandwidth: 20 Hz – 20 kHz +/- 0.07dB
Minimum Recommended Load: 4 ohms
Frequency response: (-1 dB): 10Hz to 80kHz
THD+N: <0.01%
Signal to Noise Ratio:
1 watt: > 89 dB
Full power: > 117 dB
Damping Factor: >500 into 8 ohms
Power Supply: 1,200VA toroidal transformer, 120,000uF filter capacitance
Gain: 29 dB
Input Impedance:
33 kohms (balanced)
23.5 kohms (unbalanced)
Power Requirements: 115 VAC or 230 VAC +/- 10% @ 50/60 Hz (automatically switched)
Size:
unboxed: 17” wide x 7 3/4” high x 19” deep
Weight: 73 lbs

(Next page XPA Gen3 MODULAR AMPLIFIER SYSTEM)

Musical Fidelity Amplifiers

Musical Fidelity M6si Integrated Amplifier

http://www.musicalfidelity.com/products/m6series/m6si 
Internally, the M6si is configured as 2 independent monobloc power amps with a separate pre amp. It is, in fact, a pre amp with 2 monobloc power amps that just happen to share the same casework.
The M6si has 220wpc. It has very low distortion, outstanding noise ratio and extremely flat frequency response. Its inputs are phono (MM/MC), 4 line level, 1 balanced XLR and 1 USB ‘B’ up to 24bit 96kHz asynchronous.
M6si – Specifications
Amplifier
Power output: 220 Watts per channel into 8 Ohms
THD (+ noise): <0.007 % typical 20Hz – 20 kHz
Signal to Noise Ratio: >107dB ‘A’ – weighted
Frequency Response: +0, –0.1dB, 10Hz to 20 kHz
Inputs
4x Line Level RCA
1x Line Level XLR Balanced
1x USB type ‘B’ connector – asynchronous data stream at up to 24-bit/96kHz
1 x switchable phono input
Trigger in
Phono Input
Sensitivity: 3mV nominal (MM), 0.4mV nominal (MC)
Signal / noise ratio: >84dB ‘A’-weighted
Input impedance: 47k Ohms (MM and MC)
Frequency response: RIAA/IEC ±0.5dB 20Hz-20kHz
Outputs
Trigger out
General
Dimensions – WxHxD (mm): 440 x 125 x 400
Weight (unpacked / packed): 16.6 kg/ 21.3 kg

M5si Integrated Amp

http://www.musicalfidelity.com/products/m5series/m5si
M5si – Specifications
Amplifier
Power output: 150 Watts per channel into 8 Ohms
THD (+ noise):
Signal to Noise Ratio: >100dB ‘A’ – weighted
Frequency Response: +0, –0.1dB, 10Hz to 20 kHz
Inputs
4x Line Level RCA
1x USB type ‘B’ connector – asynchronous data stream at up to 24-bit/96kHz
1 x MM phono input
Trigger in
Phono Input
Sensitivity: 3mV nominal (MM)
Signal / noise ratio: >70dB ‘A’-weighted
Input impedance: 50k Ohms (MM)
Frequency response: RIAA/IEC ±0.5dB 20Hz-20kHz
Outputs
Trigger out
Fixed, line level output
Variable, preamp output
General
Dimensions – WxHxD (mm): 440 x 100 x 405
Weight (unpacked / packed): 14.6 kg/ 18.8 kg

M3si Integrated Amp

http://www.musicalfidelity.com/products/m3series/m3si
M3si – Specifications
Amplifier
Power output: 85 Watts per channel into 8 Ohms
THD(+ noise): <0.014 % typical, 20Hz to 20 kHz
Signal to Noise Ratio: >98dB ‘A’-weighted
Frequency Response: +0, –0.1dB, 10Hz to 20 kHz
Inputs
4x Line Level RCA / Phono
1x USB type ‘B’ connector – Asynchronous data stream at up to 24-bit/96kHz
1x MM Phono input
Phono Input
Sensitivity (nominal): 3mV (suitable for cartridges giving 1.5mV or more including high output MC types)
Signal / noise ratio: >70dB ‘A’-weighted
Input impedance: 50k Ohms
Frequency response: RIAA/IEC ±1dB, 20Hz to 20 kHz
General
Dimensions – WxHxD (mm): 440 x 100 x 400
Weight (unpacked / packed): 9.2 kg/ 13 kg

Musical Fidelity M3i Integrated Amp

http://www.musicalfidelity.com/products/m3series/m3i
M3i – Specifications
Amplifier
Power output: 76 Watts per channel into 8 Ohms (19dBW)
THD(+ noise): <0.014 % typical, 20Hz to 20 kHz
Signal to Noise Ratio: >96dB ‘A’-weighted
Frequency Response: +0, –0.1dB, 10Hz to 20 kHz
Inputs
6x Line Level RCA / Phono
General
Dimensions – WxHxD (mm): 440 x 100 x 400
Weight (unpacked / packed): 9.2 kg/ 13 kg