Paul Money Hi Fi and Car Stereo - Stereo/Power Amplifiers

Denon PMA-1510AE Stereo amplifier

Denon PMA-1510AE Stereo amplifier — Thu, 26 Aug 10 11:48:09 +1200

Ultra-High Current (UHC)-MOS Single Push-Pull Circuit
High-current, dynamic power supplyDirect Mechanical Ground Construction
Minimum signal paths
Leakage-cancelling-mounted twin transformers
High-grade volume control
Newly-developed heat sink, to suppress vibration
Wide range playback, supporting Super Audio CD
System remote control unit for both amplifier and CD player
High-performance phono equaliser
Parts strictly selected for high sound quality
Gold-plated speaker terminals
Lower power consumption at stand-by 0.1 W (in Eco Standby)

		Rated Output Power (4 ohms, 1 kHz, THD 0.7%)			140 W + 140 W

		Rated Output Power (8 ohms, 20 Hz - 20 kHz, THD 0.07%)			70 W + 70 W

		Power amp construction			discrete

		UHC-MOS-FET Transistors			(new Generation)

		Single Push-Pull Circuit

		Frequency Response

		Power Supply
		LC (Leakage Cancelling) Double Transformer

		High Speed rectifier circuit

		Independent Power Transformer for Micro-Processor

		Construction
		Double-Mono Construction

		Extruded Aluminium Heatsink with damping

		High Quality-built Chassis

		Selected Components

		Aluminium Frontpanel

		Aluminium Volume Control

		High-value closed volume controller

		All-Aluminium Controls

		Features
		Source-Direct Switch

		Tone and Balance Control

		Record Selector

		Power Amp Direct Input

		Special feature			Eco-Mode

		Remote Control Controllable DENON Components			RC-1143 CD-Player, Tuner

		Connections
		Analogue Audio-Inputs			6 inc. Phono

		Analogue Audio-Outputs (Tape)			2

		Pre-amplifier Outputs

		PHONO-Input MM

		PHONO-Input MC/MM

		High grade loudspeaker terminal

		Gold plated speaker terminals

		4mm compatible speaker terminals

		Bi-Wiring speaker terminals

		Headphone output

		General
		Dimensions (width x height x depth mm)			434x134x410

		Weight			15.5 kg

		Stand-by Power consumption			< 0.2 W < 0.1 W (Eco-Standby)

		Aluminium Frontpanel

NAD M2 Direct Digital Stereo Amplifier

NAD M2 Direct Digital Stereo Amplifier — Wed, 07 Apr 10 17:12:34 +1200

The NAD M2 Direct Digital Ampliﬁer represents a new level of ampliﬁer performance. Combining the ultra low distortion and noise levels of the ﬁnest linear Class A and Class AB ampliﬁers with the efﬁciency and streamlined signal path of the digital ampliﬁer, the M2 is the ﬁrst implementation of a new ampliﬁer technology called Direct Digital Feedback. Co-developed with UK based Diodes Zetex Semiconductor, and using a unique implementation of their patented DDFA architecture, the M2 redeﬁnes what is possible with digital ampliﬁer technology.

The M2 Direct Digital Ampliﬁer represents the culmination of a decade long NAD research project, capped by three years of intense development. The resultfully justiﬁes the investment. We believe that the M2 sets new benchmarks for both measured performance and subjective musical quality.

M2 Direct Digital Amplifier Features

Direct Digital Amplifier
2 X 250W Continuous Power at 8 and 4 Ohms
>500W IHF Dynamic Power
<0.004% THD 20Hz – 20kHz from 500mW to 250W
>120dB Dynamic Range
40uV Residual Noise
>2000 Damping Factor at 50Hz +0/-0.5dB Frequency Response 20Hz – 20kHz, -3dB >85kHz
Channel Separation >90dB @ 1kHz, 80dB @ 10kHz
Digital PowerDrive
Digital Soft Clipping (switchable)
5 Position Digital Impedance Compensation Filter

Analogue-to-Digital Conversion

A/D Conversion for Analogue Inputs
Multi-bit Delta/Sigma 24/216kHz
0.0004% THD
Sample rate 32kHz - 192kHz
124dB S/N Ratio
High Resolution 120dB Digital Attenuator

Ins and Outs

Inputs Digital SPDIF: AES/EBU, Coaxial X 2, Optical X 2
Inputs Analogue: Balanced, Single Ended
Processor Loop: SPDIF Optical (Mac PC compatible) out/in
2 Sets of Speaker Binding Posts to facilitate Bi-wiring
Remote Control

Control Options

RS-232 serial data port
IR Input
12V Trigger Input and Output
<1W Standby Consumption
90% Amplifier Efficiency

Audio Analogue Maestro Settanta Amplifier

Audio Analogue Maestro Settanta Amplifier — Thu, 05 Nov 09 11:39:10 +1300

Dimensions	5,3 x 17,5 x 16,8 "
Weight	39,5 Lbs
Line Gain	12 dB
Power Amp Gain	22 dB
Phono Gain	60 dB (MM) / 80 dB (MC)
Line input impedance	40 KOhm
Phono Input Impedence	56 KOhm (MM) / 100 Ohm (MC)
Frequency response	> 100 KHz
Noise Level	-100 dB
SNR	104 dB
Output power	70W / 8Ohm p.c.
	125W / 4Ohm p.c.
Inputs	5 Unbalanced Inputs + 1 Balanced Input + 1 Phono Input
Outputs	Pre Out + Rec Out

Audio Analogue Puccini Settanta Amplifier

Audio Analogue Puccini Settanta Amplifier — Thu, 05 Nov 09 11:25:05 +1300

Dimensions	3,3 x 17,5 x 15,9 "
Weight	25,9 Lbs
Line Gain	12 dB
Power Amp Gain	22 dB
Phono Gain	60 dB (MM) / 80 dB (MC)
Line input impedance	40 KOhm
Phono Input Impedence	56 KOhm (MM) / 100 Ohm (MC)
Frequency response	> 100 KHz
Noise Level	-100 dB
SNR	98 dB
Output power	70W / 8Ohm p.c.
	125W / 4Ohm p.c.
Inputs	5 Unbalanced Inputs + 1 Phono Input
Outputs	Mono Out + Rec Out

Audio Analogue VERDI SETTANTA amplifier

Audio Analogue VERDI SETTANTA amplifier — Wed, 24 Mar 10 15:37:38 +1300

Dimensions (Nota1)	3,1 x 17,5 x 15,9 "
Weight	23,6 Lbs
Vacuum Tube Preamp Stage
Line Gain	12 dB
Power Amp Gain	32 dB
Phono Gain	60 dB (MM) / 80 dB (MC)
Line input impedance	40 KOhm
Phono Input Impedence	56 KOhm (MM) / 100 Ohm (MC)
Frequency response (Nota2)	> 100 KHz
Noise Level (Nota5)	-100 dB
SNR (Nota3)	104 dB
Output power (Nota4)	70W / 8Ohm p.c.
5 Line Inputs / 1 Phono Input + Tape Out

NAD C725BEE Stereo Receiver

NAD C725BEE Stereo Receiver — Wed, 07 Apr 10 17:04:20 +1200

Features

50W x 2 Continuous Power into 8 ohms
110W, 160W, 220W, IHF Dynamic power into 8, 4 and 2 ohms, respectively
PowerDriveTM
AM/FM Tuner with 30 station presets
RDS data service for FM
Controls and Plays DAB (Band III and Band L) with Optional DB 1 Module (230V Version Only)
Multisource Zone 2 with independent line level output
Speaker A and B switching
SR 8 System Remote control
ZR 5 Zone Remote
Front Panel MP Input for attaching portable MP3 Players
Controls and displays song information with optional IPD 2 Dock for iPod
Headphones socket
Relay Input Switching
Toroidal Power transformer
7 Line inputs
All discrete circuitry utilizing Class A gain modules
Short signal path from input to output
All sockets Gold plated
Tone controls defeat switch
Main-amp input & pre-amp output
Subwoofer Output
Soft ClippingTM
IR In & Out
12 volt trigger output
RS-232 serial interface connects to advanced control and automation systems
<1 watt Standby Consumption

Denon PMA2000A Stereo Amplifier

Denon PMA2000A Stereo Amplifier — Tue, 06 Jan 09 15:21:34 +1300

Power Amplifier Section.

Rated output 80W + 80W (8ohm, 20 Hz - 20 kHz, THD 0.07%).

160W + 160W (4ohm, 1 kHz, THD 0.7%).

Total harmonic distortion. 0.01% (rated output -3 dB, 8ohms, 1 kHz).

Output terminals. Speaker A or B: 4 - 16ohms; A+B: 8 - 16ohms.

Input sensitivity / Impedance

Power Amp Direct : 1.1 V/47kohm.

Pre Amplifier Section

Equalizer Amp Output 150 mV.

Input sensitivity / Impedance

LINE: 135 mV / 16 k? (Source Direct ON)

PHONO MM: 2.5 mV / 47 kohm.

PHONO MC: 0.2 mV / 100ohm. RIAA deviation

PHONO MM: 20 Hz - 20 kHz, ±0.5 dB.

PHONO MC: 30 Hz - 20 kHz, ±0.5 dB.

General Characteristics

Frequency characteristics 5 Hz - 100 kHz (0 to -3 dB)

Signal-to-noise ratio (A network)

LINE: 108 dB (input terminals shorted)

PHONO MM: 89 dB (input terminals shorted, input signal 5 mV)

PHONO MC: 74 dB (input terminals shorted, input signal 0.5 mV)

Tone controls. BASS: 100 Hz, 8 dB. TREBLE: 10 kHz, 8 dB.

Power outlets Switched x 2, total capacity 120W Unswitched x 1, capacity 240W.

General Power supply AC230V, 50 Hz

Power consumption 275W.

Dimensions W434 x H181 x D480 mm.

Weight 24.0 kg

NAD T975 Seven Channel Power Amplifier

NAD T975 Seven Channel Power Amplifier — Tue, 06 Jan 09 10:48:41 +1300

NAD has a well-deserved reputation for producing amplifiers with extraordinary performance and always at an affordable price. The T975 keeps this tradition alive and well by applying over 30 years of experience to the challenge of producing a very high power, high performance, seven channel power amplifier able to provide the musical muscle required for even the most sophisticated Home Theatres.

Consumers are often confused about power ratings, with many ‘mass market’ brands claiming power output levels that seem too good to be true. These inflated claims quickly fall short at the first listen. NAD’s Full Disclosure Power ratings are the most conservative in the industry, and allow the T975 to handle any speaker load and any program material. The benefit of NAD’s Full Disclosure Power is the total elimination of audible distortion at any listening level. This provides pinpoint imaging and spine tingling realism with music and movies alike.

T975 Seven Channel Power Amplifier Features

7 x 140W Continuous Power (4 or 8 Ohms); all channels driven simultaneously (20 Hz to 20 kHz with 0.03% THD)
Dynamic Power - 230W 8 Ohms, 345W 4 Ohms, 570W 2 Ohms
PowerDrive™ amplifier technology
Mono-block, Modular construction
Balanced Differential, Class A input circuit topology
Low loss, massive Holmgren toroidal mains transformer
Input gain control for each individual channel
Thermostatically controlled fan with signal tracking circuit
Custom 5-Way Binding Posts
12V Trigger for advanced control options
NAD Soft Clipping™
Detachable AC cord

Yamaha A-S700 Amplifier

Yamaha A-S700 Amplifier — Tue, 30 Dec 08 15:02:17 +1300

High Sound Quality

ToP-ART (Total Purity Audio Reproduction Technology)
I/O (input to output) Direct Symmetrical Design with top-quality parts, ART (Anti-Resonance and Tough) Base and solid center bar
Pure Direct
CD Direct Amplification
High dynamic power, low-impedance drive capability
Aluminium front panel and knobs

Advanced Features

Continuously Variable Loudness Control
Rotary-encoder input selector with LED
Remote controllable motor-driven volume control
Gold-plated input terminals
Rec Out Selector
Speaker A, B, A+B selection

The A-S700 is available in black and silver.

Audiolab 8000X7 Power Amplifier ( SUPER DEAL !!!!! )

Audiolab 8000X7 Power Amplifier ( SUPER DEAL !!!!! ) — Tue, 29 Jun 10 17:02:53 +1200

The 8000X7 is a genuine one-box, seven channel power amplifier, capable of handling even difficult loudspeaker loads.

The 8000X7 home theatre power amplifier delivers 7 x 100Wrms power. However, you can also run it in five or six channel mode too. By bridging two channels it is possible to create a more powerful single channel - especially useful if your front left and front right speakers are more performance critical than the other speakers in your 5.1 system. This can be achieved simply by changing switch settings on the rear of the unit.

The 8000X7 is gain matched with the other 8000 series power amplifiers, and indeed the Power section of the 8000S integrated amplifier. It will work happily in combination with any of these should the demands of your system change in time.

Unobtrusive, with an elegant simplicity, the 8000X7 is a compact yet powerful performer.

Power output	7 x 100W into rated load impedance (8 Ohm)
IHF toneburst power	7 x 120W (8 Ohm)
Input for rated power	1.05 Vrms
Input impedance	47 kOhm
Gain	+29 dB at 1 kHz
Signal to noise	better than 90 dB (relative to 0 dBW) unweighted
Frequency Response	1.5 Hz - 150 kHz (-3 dB)
Input connector	RCA

http://www.superfi.co.uk/extras/Audiolab/Audiolab-8000AP-X7-HCC-Review.pdf

Audiolab 8000P Stereo Power Amplifier

Audiolab 8000P Stereo Power Amplifier — Sat, 30 Aug 08 11:45:39 +1200

The 8000P is a classic two channel power amplifier, delivering over 100W per channel and a peak output of over 40 Amps.

Comfortably able to drive most loudspeaker loads, the 8000P is equally useful in Home Cinema configurations as it is in high performance stereo applications.

A simple aesthetic and wide compatibility with other components ensures the 8000P amplifier is an ideal building block for your current and future systems.

All Audiolab 8000 series power amplifiers are gain-matched for easy integration into a growing system.

Rated output power	100 W per channel into rated load impedance (8 ohms), 150 W into 4 ohms
Typical output power	120 W per channel into rated load impedance (8 ohms), 180 W into 4 ohms
Input for full rated power	1.0 V rms
Input impedance	47 k ohms nominal
Gain	29.0 dB at 1 kHz
Signal to noise	Greater than 95 dB (relative to 0 dBW)
Frequency response (-3 dB)	0.1 Hz - 75 kHz
Frequency response (±0.3dB)	20 Hz - 20 kHz
Total harmonic distortion + noise	Less than 0.05%
Dimensions (WxHxD - mm)	445 x 74 x 337

Audiolab 8000M Mono Power Amplifier

Audiolab 8000M Mono Power Amplifier — Sat, 30 Aug 08 11:34:19 +1200

Using two monobloc amplifiers, rather than a two-channel stereo power amplifier can significantly improve the performance of any hi-fi system.

Although the 8000M offers greater power output than an 8000P, it is gain matched, so should you upgrade your system in the future, you can happily use the two in combination.

The 8000M provides a genuine 125W power into an 8Ohm loudspeaker load, and features twin output terminals for bi-wiring.

It has parallel phono connectors making it easy to connect several pairs of 8000Ms to any pre-amplifier. This allows you to daisy-chain units to further improve headroom in bi-amped and even tri-amped systems.

Simple styling belies the power and speed of response available from this compact amplifier.

Rated output power	125 W per channel into rated load impedance (8 ohms), 200 W into 4ohms
Typical output power	145 W per channel into rated load impedance (8 ohms), 240 W into 4 ohms
Input for full rated power	1.13 V rms
Input impedance	47 k ohms nominal
Gain	29.0 dB at 1 kHz
Signal to noise	Greater than 96 dB (relative to 0 dBW)
Frequency response (-3 dB)	0.1 Hz - 75 kHz
Frequency response (±0.3dB)	20 Hz - 20 kHz
Total harmonic distortion + noise	Less than 0.05%
Dimensions (WxHxD - mm)	445 x 74 x 337

Audiolab 8000SE Integrated Amplifier

Audiolab 8000SE Integrated Amplifier — Sat, 30 Aug 08 10:57:27 +1200

The 8000SE integrated amplifier retains nearly all the performance of the 8000S amplifier, and offers remarkable valuefor-money.

The same circuit topology is used, but with a simpler orientation. Motorised volume controls and remote controls are forsaken, as are the bi-wire terminals, yet in all other respects, the SE is every bit as competent as the famous 8000S.

In pure performance terms, the 8000SE stands ‘head and shoulders’ above the competition and offers the true enthusiast a real hi-fi alternative to the ‘feature-rich but lacklustre performance’ integrated amplifiers that are frequently suggested. Available in silver paint and a new, anodised, brushed aluminium black finish..

Rated output power	60wpc into 8 Ohm, 95wpc into 4 Ohm
Typical output power	72wpc into 8 Ohm, 115wpc into 4 Ohm
Pre-amplifier input impedance	20kOhm nominal
Frequency response (-3dB)	1Hz - 65kHz
Frequency response (+/-0.5db)	20Hz - 20kHz
Channel separation	better than 60dB at 1kHz
Crosstalk rejection	better than 80dB et 1kHz
Operating temperature range	10-35deg Celcius
Power consumption	less than 300W
Dimensions (h x w x d)mm	74 x 445 x 335

Denon DRA500AE Stereo Tuner Amplifier

Denon DRA500AE Stereo Tuner Amplifier — Mon, 14 Jul 08 12:25:50 +1200

Rated output 75 W+75 W (8 ohms, 20Hz - 20kHz, 0.08 % THD)

Frequency response 10 Hz - 100 kHz +0 dB, -3 dB (at 1W)

Preamplifier Section

Input sensitivity/impedance

DVD/VDP, AUX, CD-R/TAPE1, MD/TAPE2, CD 200 mV/47 kohms

Output level/Load impedance

CD-R/TAPE1, MD/TAPE2 200 mV/47 kohms

Tone control Treble: ±10 dB at 10 kHz, Bass: ±10 dB at 100 Hz

FM Section Tuning frequency range 87.5 - 108.0 MHz

Usable sensitivity 1.0 µV (11.2 dBf)

S/N ratio (A-weighted) Mono: 77 dB, Stereo: 72 dB

Total harmonic distortion Mono: 0.15%, Stereo: 0.3%

Frequency response 20 Hz - 15 kHz, +0.5, -1.5 dB

Stereo separation 43 dB (1 kHz)

AM Section Tuning frequency range 522 - 1611 kHz

Usable sensitivity 18 µV

General Power supply AC 230 V, 50 Hz

Power consumption 235 W

Dimensions 434 (W) x 147 (H) x 414 (D) mm

Weight 9.0 kg

NAD C355 Stereo Amplifier

NAD C355 Stereo Amplifier — Wed, 07 Apr 10 17:05:48 +1200

Line Level Inputs (CD, Video, Tuner, Tape1, Tape2, Aux)
Input impedance (R and C)		220kohm / 100pF
Input sensitivity ref. 0.5V		300mV at Rated power
Signal/Noise ratio, A weighted ref 0.5V		110dB ref. 500mV - preamp out
Frequency response (-3dB 3Hz - 70kHz)		±0.3dB (20Hz - 20kHz)
Line Level Outputs
Output impedance	Pre Out	80 Ohms
	Tape	Source Z + 1kOhm
Power Amp
Continuous average power output into 8ohms		80W (19dBW)
Rated distortion (THD 20Hz-20kHz)		0.02%
Clipping power (max cont. power/channel)		92W
IHF dynamic power	8 ohms	140W (21.5dBW)
	4 ohms	220W (23.4dBW)
	2 ohms	270W (24.3dBW)
Damping factor		>160
Frequency response	20Hz-20kHz	+/-0.1dB
Input impedance R and C		20kΩ/ 1nF
Input sensitivity (for rated output into 8 ohms)		940mV
Signal to noise ratio, A-weighted	ref. 1W	>-105dB
	ref. rated power	>-124dB
Physical Specification
Dimensions (W×H×D)	Imperial	17 1/8 x 4 1/2 x 11 7/16”
	Metric	435 x 116 x 292mm
Gross Dimensions (W×H×D)	Imperial	17 1/8 x 5 x 13 1/8”
	Metric	435 x 130 x 338mm
Net Weight	Imperial	18.75 lbs
	Metric	8.5kg
Shipping Weight	Imperial	23 lbs
	Metric	10.4kg