Harman/Kardon CD391 cassette deck

 Harman Kardon's state-ot-the mind technology is exemplified in the CD391. its frequency response is an almost unheard of 20 Hz to 22 kHz (±3 dB), with any tape formulation.

The CD391 also offers the advantages of Dolby HX Professional, which delivers greatly enhanced frequency response at high record levels, with significantly reduced distortion. Added to this is a Signal-to-Noise Ratio with Dolby HX Pro, the CD391 provides a high level (0 dB) Frequency Response of 20 Hz to 20 kHz (±3 dB). The dramatic result of this is the ability to accurately record more dynamic audio signals than was previously possible. This is especially significant as more demanding forms of software, such as digital audio emerge.

To indicate the optimum record level, the CD391 has a unique mater weighting feature which measures the frequency content of the music and is backed by a 16-segment peak level meter ranging from -30 dB to +10 dB.

The CD391 also offers a highly precise closed-loop, dual capstan, dual flywheel transport and a third motor to gently raise and lower the head assembly. It also has bi-directional auto-search: peak hold, independent left and right level controls; and master fader.

Special Harman Kardon features found on the CD391 also include tone generators for bias trim and record calibration that allow alignment of bias and Dolby levels with virtually any tape. Sendust record/playback head, Mic/Line mixing, solenoid operation, timer controllable functioning, record, mute and auto space are all featured on the CD391

 

Specifications

Tape Speed:  1-7/8 (ips)

Heads: 2

Record/Playback Head Type:  Sendust

Frequency Response (-20 dB, IHF std)

All Tape Formulations:  20 Hz - 22 kHz ±3 dB

Metal Tape :  20 Hz - 22 kHz ±3 dB

Large Signal Response (0 dB, with Dolby On, Metal Tape):  20 Hz - 20 kzh ±3 dB

Wow and Flutter

NAB, WRMS :  0,025%

DIN :  0,04%

Signal-to-Noise Ratio (CrO₂)

Dolby NR, Off :  58 dB

Dolby B, On :  66 dB

Dolby C, On :  74 dB

Total Harmonic Distortion (1 kHz, Metal tape, Dolby Level):  0,9%

Channel Separation:  45 dB

Channel Crosstalk:  70 dB

Erase Ratio:  65 dB

Bias Frequency:  106 kHz

Fast Forward and Rewind Time:  90 sec. C-60 cassette

Peak Reading meter Range:  -30 dB to +10 dB

Output Level, ) dB, 10 k Ω  load:  420 Mv (max)

Output Impedance:  <5  k Ω

Input Sensitivity (0 dB)

Mic :  0,65 mV

Line :  40 mV

Input Impedance

Mic :  1,0 k Ω

Line :  22 k Ω

Headphone Impedance (Minimum):  8 Ω

Dimensions (W x H x D):440 x 122 x 343 mm (17-5/16" x 4-13/16" x 13-1/2")

Weight:  8,0 kg (17,6 lbs)

Harman/Kardon CD491 cassette deck

 The CD491 is Harman Kardon's most sophisticated state-of-the-mind cassette deck and one of the few in the world that can equal the range of human hearing. Its frequency response is an unparalleled 20 Hz to 24 kHz (±3 dB) with any tape formulation. An audiophile would settle for nothing less.

Incorporated in the CD491 is Dolby HX Professional, a headroom extension system that extends frequency response at high record levels, while significantly reducing distortion. Added to this is a Signal-to-Noise Ratio with Dolby C of 75 dB. Using metal tape with Dolby C and Dolby HX Pro. The CD491 provides a high level (0 dB) Frequency Response of 20 Hz to 20 kHz (±3 dB). The dramatic  result of this is the ability to accurately record more dynamic audio signals than was previously possible. This is especially significant as more demanding forms of software, such as digital audio emerge.

 

The CD491 has three heads for improved performance and the convenience of monitoring while recording. The Sendust record head withstands high record levels without overload, and the ferrite play back head assures extended high frequency response. Both heads are precisely aligned in one housing.

In addition, the CD491 has dual Dolby B and C, noise reduction. Its tone generators for bias trim and record calibration allow for alignment of the bias and Dolby level to virtually any tape.

The CD491 also features a unique meter weighting system which measures the frequency content of the music and indicates the optimum record level on its 16-segment peak level meters.

Performance features include closed-loop dual capstan transport bi-directional auto search,, auto space (for cueing), electronic display and a tape counter that also functions as a real time counter.

 

Specifications

Tape Speed:  1-7/8 (ips)

Heads: 3

Record/Playback Head Type:  Sendust/Ferrite

Frequency Response (-20 dB, IHF std)

All Tape Formulations:  20 Hz - 24 kHz ±3 dB

Metal Tape :  20 Hz - 26 kHz ±3 dB

Large Signal Response (0 dB, with Dolby On, Metal Tape):  20 Hz - 20 kzh ±3 dB

Wow and Flutter

NAB, WRMS :  0,025%

DIN :  0,04%

Signal-to-Noise Ratio (CrO₂)

Dolby NR, Off :  58 dB

Dolby B, On :  66 dB

Dolby C, On :  75 dB

Total Harmonic Distortion (1 kHz, Metal tape, Dolby Level):  0,9%

Channel Separation:  45 dB

Channel Crosstalk:  70 dB

Erase Ratio:  65 dB

Bias Frequency:  106 kHz

Fast Forward and Rewind Time:  90 sec. C-60 cassette

Peak Reading meter Range:  -30 dB to +10 dB

Output Level, ) dB, 10 k Ω  load:  420 Mv (max)

Output Impedance:  <5  k Ω

Input Sensitivity (0 dB)

Mic :  0,65 mV

Line :  40 mV

Input Impedance

Mic :  1,0 k Ω

Line :  22 k Ω

Headphone Impedance (Minimum):  8 Ω

Dimensions (W x H x D):440 x 122 x 343 mm (17-5/16" x 4-13/16" x 13-1/2")

Weight:  8,2 kg (18 lbs)

JVC KD-D4 cassette deck

 True Convenience Is in The Limelight

Innovative JVC engineers have come up with a truly easy-to-use cassette deck, abounding with sophisticated devices for convenience and fun. Tape operation is smooth and trouble-free with the soft-operating buttons. Peak levels are shown at five frequencies for easy spectrum analysis on a fluorescent tube. The digital readout lets you know metered tape length, elapsed time, remaining recording/playback time, and the order of any selection being played at any given moment. The readout is selectable with a twist of a knob. A deck couldn't be more delightful, more carefree more fun.

 

Two-colour fluorescent SPI: A most useful multi-peak indicator

A spectro-peak indicator is the most useful, most accurate way to set optimum recording levels. It features five bars to show peak levels at five frequencies. In addition, there are two VU-reading bars (one for each channel) as well as one peak-reading bar for the composite output. It's one of the most comprehensive and useful level indicating system ever conceived.

 

Electronic multi-function digital counter: A versatile and useful indication.

The digital counter on the KD-D4 offers multiple functions, all useful and sure to add to your recording and playback delight. In addition to serving as a precision 4-digit electronic tape counter, it works at the twist of a knob, as an elapsed-time counter with a time accumulating function, a counter that displays remaining tape left in minutes and seconds, and an indicator for the JVC multiple music scan system described below.

 

JVC multiple music scan: Skip up to 20 selections to cue in on the one of your choice, instantly.

JVC's multiple music scan system has made selection of a particular song on a tape as simple an operation as on a record. And you can skip up to 20 selections on the way. Once you get used to it, you'll wonder how you ever lived without this feature before.

 

Mechanical logic for soft-touch operation

Trhe tape transport employs a JVC-exclusive mechanical logic system. By the ingenious use of precision cams and gears, the rotational power of the motor has been tapped so that you can enjoy soft-touch button operation for all modes.

 

Specifications

Track System:  4-track, 2-channel

Tape Speed:  4,8 cm/sec (1-7/8"/sec )

Frequency Response at 0 dB Rec

Metal Tape :  30 - 12,500 Hz ±3 dB

SA/Chrome Tape :  30 - 8,000 Hz ±3 dB

SF/Normal Tape :  30 - 8,000 Hz ±3 dB

Frequency Response at -20 dB Rec

Metal Tape :  20 - 18,000 Hz (30 - 16,000 Hz ±3 dB)

SA/Chrome Tape :  20 - 18,000 Hz (30 - 16,000 Hz ±3 dB)

SF/Normal Tape :  30 - 17,000 zh (30 - 15,000 Hz ±3 dB)

Signal-to-Noise Ratio:   60 dB

Wow and Flutter:  0,05% WRMS (0,17% DIN 45 500)

Crosstalk:  65 dB (1 kHz)

Harmonic Distortion:  K3: 0,4% T.H.D.: 1,0% (Metal tape, 1 kHz 0 dB)

Bias: AC Bias

Erasure:  AC Erasure

Heads:  Metaperm haed for rec/playback, 2-gap Ferrite head for erasure

Motor:  Electronic governed DC motor

Fast Forward Time:  105 sec with C-60 cassette

Rewind Time :  105 sec with C-60 cassette

Semiconductors:  21 ICs; 30 Transistors; 39 Diodes; 4 LEDs

Input Sensitivity/Impedance:

Mic Jack x 2 :  0,2 mV/600 Ω  - 10 k Ω

Input jack x 2 :  80 mV/ 100 k Ω

Output Level/Impedance:

Jack x 2 :  300 mV/5 k Ω

Phones :  0,3 mW / 8 Ω  - 1 k Ω

DIN Socket:

Minimum Input Level :  0,1 mv/k Ω

Input Impedance :  10 k Ω

Output Level :  300 mV

Output Impedance :  5 k Ω

Matching Impedance:  50 k Ω  or more

Power Requirements:  AC 240/220/120/100 V 50/60 Hz

Power Consumption:  17 W

Dimensions (W x H x D):  420 x 115 x 250 mm (16-1/2" x 4-1/2" x 9-7/8")

Weight:  4,8 kg (10,6 lbs)

JVC KD-D35 cassette deck

Fine Performance Teamed with Advanced Features Metal Cassette Deck

 

In many ways the KD-D35 is equipped to handle just about any taping situation. It's fitted with JVC's Metaperm rec/Play head for ful fidelity when utilizing metal tapes. The LED multi-peak indicators assure optimum recording levels. And for convenience, the KD-D35 is not lacking. JVC's velvety mechanical logic control system gives the deck luxurious soft-touch control. The single music scan system lets you zero in on the next selection ahead, or return to the exact beginning of the one you're listening to. For the money, you can't beat the performance and convenience offered by the KD-D35.

 

Mechanical logic control for soft-touch operation.

Most single-motor cassette decks have piano-key type transport controls, requiring firm pressure so that they engage properly. Not the KD-D35. JVC engineers have come up with a transport design that uses the rotational momentum of the motor/flywheel and a series of precision cams to operate all transport controls. Response is positive and only a soft-touch is required.

 

7-LED multi-peak indicator - one per channel

JVC first introduced their 5-LED multi-peak indicator several years ago to complement the standard VU meters. But the usefulness of the system was so widely recognized with mechanical VU meters altogether in many of our decks and expanded the meters to seven LEDs, more than adequate resolution for accurate reading of peak levels in programme material. Perfect recording levels are a cinch to set with the KD-D35.

 

Single music scan: An extra bonus

JVC's single music scan system iis an extra that should be standard on all decks. Once you use it, you'll see why. Quickly locating a particular section on a tape - the beginning of the one you're now listening to or the beginning of the next one - is a snap; all it takes is a touch of a button or two.

 

Metaperm Rec/Play head is ready for metal tapes.

The introduction of metal tapes required a great change in existing head designs because of the far higher current requirements JVC's metaperm Rec/Play head is fully capable of fine performance, whatever the tape type selected erase heads also required radical redesigning. Our 2-gap ferrite head is designed to give all tapes, even metal, a double dose of erasure, your assurance that tapes will sound quiet.

 

Specifications

Track System:  4-track, 2-channel

Tape Speed:  4,8 cm/sec (1-7/8"/sec )

Frequency Response at 0 dB Rec

Metall Tape :  30 - 12,500 Hz ±3 dB

SA/Chrome Tape :  30 - 8,000 Hz ±3 dB

SF/Normal Tape :  30 - 8,000 Hz ±3 dB

Frequency Response at -20 dB Rec

Metal Tape :  20 - 18,000 Hz (30 - 16,000 Hz ±3 dB)

SA/Chrome Tape :  20 - 18,000 Hz (30 - 16,000 Hz ±3 dB)

SF/Normal Tape :  30 - 17,000 zh (30 - 15,000 Hz ±3 dB)

Signal-to-Noise Ratio:  58 dB

Wow and Flutter:  0,05% WRMS (0,16% DIN 45 500)

Crosstalk:  65 dB (1 kHz)

Harmonic Distortion:  K3: 0,5% T.H.D.: 1,0% (Metal tape, 1 kHz 0 dB)

Bias: AC Bias

Erasure:  AC Erasure

Heads:  Metaperm haed for rec/playback, 2-gap Ferrite head for erasure

Motor:  Electronic governed DC motor

Fast Forward Time:  105 sec with C-60 cassette

Rewind Time :  105 sec with C-60 cassette

Semiconductors:  7 ICs; 30 Transistors; 28 Diodes; 19 LEDs

Input Sensitivity/Impedance:

Mic Jack x 2 :  0,2 mV/600 Ω  - 10 k Ω

Input jack x 2 :  80 mV/ 100 k Ω

Output Level/Impedance:

Jack x 2 :  300 mV/5 k Ω

Phones :  0,3 mW / 8 Ω  - 1 k Ω

DIN Socket:

Minimum Input Level :  0,1 mv/k Ω

Input Impedance :  10 k Ω

Output Level :  300 mV

Output Impedance :  5 k Ω

Matching Impedance:  50 k Ω  or more

Power Requirements:  AC 240/220/120/100 V 50/60 Hz

Power Consumption:  17 W

Dimensions (W x H x D):  420 x 110 x 300 mm (16-1/2" x 4-3/8" x 11-5/8")

Weight:  5,1 kg (11,2 lbs)

 

Dahlquist M907 loudspeakers

 Ask any true audiophile and you'll be told that Dahlquist's legendary DQ-10 influenced a whole generation of loudspeakers. It showed a whole generation of engineers that some of the  classic problems in loudspeaker design could be solved. For the first time, a multi-way dynamic system eliminated the "boxy" sound that had plagued speakers. It did this by controlling diffraction (the delayed emission of sound from cabinet edges and surface discontinuities near each speaker driver) and by virtually eliminating the box. The DQ-10 made an enormous impact when it was offered to an eager public and remained the system of choice for 14 years. Today, the DQ-10 has been succeeded by the DQ-20 which represents the choice for music lovers who insist on having the best there is.. Now, Dahlquist offers a series of audiophile-quality loudspeaker systems at modest price, making Dahlquist performance available to many more music lovers.

The Problem

Speaker systems confined to enclosures have essentially been compromises between high efficiency with wide dynamic range on one hand and smooth, linear, low coloration on the other. Sadly, the latter required a sacrifice of dynamic range and efficiency.

The Dahlquist Solution

The Dahlquist M Series ends the need to compromise. Originally designed for recording and broadcast studios, new techniques now make it possible to offer several models for home use. In the Dahlquist tradition, the M Series solves many of the problems that still plague other speaker systems.

The Dahlquist M Series loudspeakers are the first fully enclosed systems to reproduce all the of the subtle, low level details of the music in the midst of extremely high level music signals. The reproduction of such dynamic shadings makes music come startlingly alive.

The Dahlquist M907

The M907 is a unique blend of technologies. This three-way system has the Dahlquist Un-Box enclosure and critically matched loudspeaker drivers, as do the other members of the M Series. But, in an exciting departure, the M907's specially designed midrange driver shares the cylindrical loading originally developed for the DQ-20. as a result, the M907 not only gives the listener superb performance over a wider range of frequencies, it gives an extra measure of performance in the critical midrange, where most of the music "happenes".

But, the M907 doesn't stop there, it recreates the original positions of the musical instruments with exceptional fidelity. Further, the M907's reproduction of soundstage height, width, and depth draws the listener into the performance. These exceptional capabilities are apparent as life-sized images in space. If a first audition suggests a traditional low-efficiency design, don't be foolded. Experienced and demanding listeners are surprised by the way the M907 delivers all of the music's dynamic shading when driven with even a medium-powered amplifier or receiver.

And it still doesn't stop.

One of the hallmarks of Dahlquist loudspeakers is the coherency of the total sound. The M907's three drivers blend together seamlessly. As a result, harmonic relationship are accurately preserved. Individual instruments, and especially the human voice, retain their own distinct characters.

Naturally, as is expected from a Dahlquist loudspeaker system, the M907 incorporates an advanced and remarkable anti-diffraction technique which enhances accurate stereo imaging and greatly contributes to open, spacious and accurate sound reproduction.

 

Specifications

Type:  Box-style, 3-way acoustic suspension

Drivers

LF :  1 x 10" (254 mm ) cone woofer

MF :  1 x 5" (127 mm) cone midrange

HF :  1 x 1" (25,4 mm ) dome tweeter

Frequency Range:  30 Hz to 24,000 Hz

Sensitivity:  88 dB SPL at 1 m for 2,83 V RMS at 1 kHz

Crossover Frequencies:  400 Hz ; 3,5 kHz

Impedance:  8 Ω  nominal (6 Ω  minimum)

Recommended Amplifier Power:  40 to 150 watts per channel

Dimensions (H x W x D):  686 x 343 x 276 mm (27" x 13-1/2" x 10-7/8")

Weight:  18,2 kg (40 lbs)

Dahlquist M905 loudspeakers

Dahlquist demonstrated conclusively that some of the classical problems which plagued the delivery of music in the home could be solved. The Dahlquist DQ10 remedied the problems of diffraction distortion and thus made an enormous impact when it was offered to an eager public. It remained the system of choice for many years. Today, it has succeeded by the DQ20, which is eagerly sought by music lovers who insist on having the best there is. Now, Dahlquist  offers a series of highquality speaker systems at modest prices, making Dahlquist  performance available to many more music lovers.

The problem

Speaker systems confined to enclosures have essentially been compromises between high efficiency with wide dynamic range on one hand and smooth, linear, low coloration on the other. Sadly, the latter required a sacrifice of dynamic range and efficiency.

 

The Dahlquist  solution

The Dahlquist  M Series ends the need to compromise. Originally designed for recording and broadcast studios, new techniques now make it possible to offer several models for home use. In the Dahlquist  tradition, the M Series solves many of the problem that still plague other speaker systems.

The Dahlquist  M Series loudspeakers are the first to reproduce all of the subtle, low level details of the music in the midst of extremely high level music signals. The M905 is capable of reproducing the most exquisite nuances available from analog sources as well as the peak high level signals from digitl sources.

 

The M905 delineates soundstage height, width and depth. Its exceptional capabilities are apparent as life-size images in space. A first audition suggests a sophisticated, low-efficiency design. Thus, most experienced and demanding listeners are astonished when they realize the efficiency of the Dahlquist M905

The M905 maintains the traditional Dahlquist  virtues of coherent driver blending and faithful reproduction of harmonic relationships. Moreover, when challenged to reproduce voice, the M905 does so with astonishing ease and accuracy.

Of course, as you might expect from a Dahlquist  loudspeaker system, the M905 incorporates a new and remarkable antidiffraction technique which enhances accurate imaging and contributes to open, spacious, accurate sound reproduction.

 

Sony CDP-690 cd player

Compact Disc Player

 

Specifications

Frequency Response:  2 Hz - 20,000 Hz ±0,5 dB

Signal-to-Noise Ratio:  more than 102  dB

Dynamic Range:  more than 95 dB

Total Harmonic Distortion:  less than 0,005%

Channel Separation:  more than 95 dB

Outputs Level/Impedance

Line Out :  2 V (at 50 k Ω)  / over 10 k Ω

Digital Out (Optical) :  Wave Length 660 nm /output level -18 dBm

Phones :  max 15 mW / 32 Ω

Power Requirements:  120 V AC, 50 Hz

Power Consumption:  14 W

Dimensions (W x H x D):  430 x 100 x 280 mm (17" x 4" x 11-7/8")

Weight:  3,7 kg (8 lb 3 oz)

Sony PS-3300 turntable

Sony unveils the PS-3300, a $200 direct-drive turntable that's semi-automatic. So the contest between our PS-3300 and their vaunted PL-510 is really no contest. Because in the crassest terms, we give you more ;an automatic arm return and a reject button. And that's a substantial difference, for no difference in price. What's more, we didn't shave anything to make it possible.

 

The PS-3300 has a finely crafted direct drive system with a brushless and slotless DC servo-controlled motor.

The PS-3300 innovates with a speed monitoring system that state troopers would love to get their hands on; an electronic process using an 8-pole megnetic pick-up head and a pulse coated platter rim. Plus there's independent fine speed adjustments, a tonearm that's so sensitive it's almost neurotic, and so on.

And to see the attention to detail that Sony stands for, note what the PS-3300 stands on. Bell-shaped rubber feet that are specially constructed to prevent both acoustic and mechanical feedback (When it comes to feedback, we put our feet down)

They absorb vibrations - whether from footsteps bouncing on the floor or sound waves bouncing off the wall. Otherwise, these vibrations would be transferred to the stylus, amplified, and be transffered back to the stylus - creating a vicious cycle.

If you're wondering how we managed to do this - how our semi-automatic shot down their high-flying manual - our response is a brief one.

Sony relied on its engineers.

 

Specifications

Turntable

Platter:  308 mm (12-1/8") Aluminum alloy diecast

Motor:  DC Servo-Controlled Brushless Motor

Drive System:  Direct-drive

Speeds:  33-⅓ and 45 rpm

Wow and Flutter:  0,04% WRMS

Signal-to-Noise Ratio:  65 dB (DIN-B)
tonearm

Type:  Statically balanced, universal

Pivot-to-Stylus Length:  216,5 mm (8-5/8")

Overhang:  16,5 mm (21/32")

Tracking Force Adjustment Range:  0 - 3 g

Shell Weight:  7,5 g

Cartridge Weight Range:  4 - 10 g

General

Power Requirements:  120 V 60 Hz (USA, Canada)

Power Consumption:  6W

Dimensions (W x H x D):  455 x 153 x 352 mm (18"x 6" x 13-7/8")

Weight:  8,0 kg (17 lb 11 oz)

 

Lyngdorf TacT SDAI-2175 amplifier

Lyngdorf SDAI 2175 is a compact, high performance semi digital integrated switch-mode amplifier utilizing some of the circuit topologies originally developed for the Lyngdorf Millennium amplifier. Due to the switch-mode topology, with an efficiency of up to 85%, the SDAI 2175 will provide its output power with minimal heat dissipation. A massive power supply with a 650VA toroid transformer and more than 40000uF capacitors ensures that the SDAI 2175 can deliver the current to drive even the most demanding loudspeakers.

The SDAI 2175 has 2 gold-plated XLR connectors accepting balanced input signals and 6 stereo inputs with 2 gold-plated RCA connectors for unbalanced signals. The SDAI 2175 has a stereo tape out of the selected line level input signal and pre out of the selected input signal after the volume control as either balanced signal from the gold-plated XLR connectors or unbalanced from the gold-plated RCA connectors.

The volume control is implemented as a high precision digital controlled analog attenuation in 0.1 dB steps over a 100 dB range. Input selection is performed via precision relays with double gold plated construction of the contact set. These kind of relays are normally only used in expensive measurement equipment for high linearity and low losses.

 

All controls can be operated from the front panel via the logical user interface or by use of the remote control. Or as an option the setup and operation can be performed via a PC interface.

The input signal is fed to the volume control circuit via an AC coupled true instrumentation type input amplifier. Except for this AC coupling, the SDAI 2175 is fully DC coupled with no bypass capacitors or DC servos to degrade the performance. The protection circuitry in the SDAI 2175 shuts down the unit in case of over-temperature, DC voltage on the outputs and too high output current. The amplifier will resume normal operation when the fault condition is no longer present.

A trigger output on a 3.5mm jack connector allows the SDAI 2175 to control one or more SDA2175’s power condition.

 

Specifications

Balanced Input Connectors:  3 pin XLR, gold-plated.

Balanced Input Impedance:  10 k Ω   (AC-coupled)

Balanced Input CMRR:  40 dB (20 Hz - 20 kHz)

Unbalanced Input Connectors:  RCA (phono) jack, gold-plated

Unbalanced Input Impedance:  100 k Ω  (AC-coupled)

Tape Out Output Impedance:  75 Ω   (Gain 0  dB ref. active input)

Pre Out Output Impedance:  75 Ω   unbalanced; 100  balanced (Gain According to volume control setting. 88 dB = 0 dB with sensitivity 0 dB and rel. Volume 0 dB)

Max. Input Voltage:  ±12Vp AC, 0 - 20 V DC.

Input Sensitivity:  2 V (1V with high sens.) 200 W/8 Ω 

Voltage Gain:  26 dB

Output Connectors:  4 insulated binding posts, goldplated. (Will accept bare wire ends of up to 5 mm diameter)

Output Power (8 Ω ):   2 x 200 W (1KHz, 1% THD+N)

Output Power (4 Ω ):   2 x 375 W (1KHz, 1% THD+N)

Nominal Load Impedance:  4 Ω  - 8 Ω  (It is safe to operate the amplifier with no load)

Frequency Response:  0,3 Hz - 33 kHz (-3 dB points, 8 Ω  load)

Frequency Response:  -0 dB /+0,2 dB (20 Hz - 20 kHz, 8 Ω  load)

Frequency Response:  -0,2 dB / +0 dB (20 Hz - 20 kHz, 4 Ω  load)

Output Impedance:  0,035 Ω   (20 Hz - 1 kHz)

Output Impedance:  0,4 Ω  (20 kHz)

THD+N, (1 W/8 Ω ):   0,004% (A-wgt.)

THD+N, (1 W/4 Ω ):   0,006% (A-wgt.)

THD+N, (100 W/8 Ω:  0,01% (A-wgt.)

THD+N, (180 W/8 Ω:  0,07% (A-wgt.)

THD+N, (375 W/4 Ω:  0,07% (A-wgt.)

Signal-to-Noise Ratio:  113 dB (A-wgt. Ref. 200 W/8 Ω )

Channel separation:  84 dB (1 kHz, 200 W/8 Ω )

Peak output current:  –40 A

Output Common Mode Voltage:  35 V DC (Ref. Ground. The amplifier can not be used in bridged mono mode)

Output DC Voltage:  ±5 Mv

Output Short Circuit Current:  –40 A

Output DC Voltage:  –5 V at <0,1 Hz

Over Temperature:  All heat sinks and mains-transformer.

Mains Input Connector:  IEC 320 cold type (Mains lead supplied)

Mains Voltage Range:  100 - 120 V AC, 50/60 Hz (115 V version)

Mains Voltage Range:  200 - 240 V AC, 50/60 Hz (230 V version)

Internal Mains Fuse:  8 Amp (115 V version)

Internal Mains Fuse:  4 Amp (230 V version)

Power Consumption:  1,5 W (STANDBY mode)

Power Consumption:  35 W (OPERATE mode, no output)

Power Consumption:  116 W (2 x 37,5 W/4 Ω)

Power Consumption:  820 W (2 x 300 W/4 Ω)

Dimensions (W x H x D);  450 x 100 x 355 mm (17,72" x 3,94" x 13,98")

Weight:  13 kg (28,66 lb)

 

Lyngdorf DP-1 loudspeakers

The naked truth

The DP-1 is yet another boundary breaker from Lyngdorf. We have solved the problem of cabinet induced distortion by simply removing the cabinet!

DP-1 is an open dipolar design that radiates sound both forwards and backwards. In this way we obtain a perfect sound radiation pattern and avoid all cabinet-induced coloration of the upper bass and midrange.

Thanks to highly advanced drivers and the absence of a box the DP-1 has a remarkably airy, neutral and extremely detailed music quality. It combines pure sound as known from the very best electrostatic speakers with the power capability of dynamic speakers. The result is the very best from both worlds – a truly brilliant solution!

The stylish speaker has been designed for frequencies above 300 Hz and for cooperation with a BassDirect speaker like BW-1 or the larger W-210 from Lyngdorf. Of course it performs the best in a complete Lyngdorf system where all acoustical parameters are under full control.

 

The extraordinary drivers are specially customized for the Damping Factor-1. the ScanSpeak tweeter has a 1" textile dome which has been coated several times to achieve the exact desired combination of dynamic linearity and resonance damping. The ingenious magnet structure practically eliminates electrical phase shifts and distortion. The result is an incredibly smooth, linear, dynamic and amazingly transparent sound.

The 6,5" Seas woofer is extremely advanced; both the diaphragm and the chassis are made of magnesium. This ensures a minimum of break-up in the cone and a completely nonmagnetic chassis that concentrates the force of the magnet around the voice coil. The unit has a solid metal center plug instead of a traditional dust cap. That makes the cone lighter and faster and eliminates unwanted air pressure behind the cap. Furthermore it provides extra cooling for the voice coil which increases power handling and sonic stability at high volume levels.

The front baffle of the Damping Factor-1 is made of seven layers of MDF board glued together to shape the solid 55 mm thick profile that provides optimum acoustic properties for the drivers. It has a beautiful piano finish comprising of no less than 10 layers of lacquer, each hand polished to a deep, black, glossy shine.

 

Specifications

Loudspeaker Type:  Dipolar, no cabinet type

High Frequency Driver:  1" dome tweeter

Woofer/Midrange Driver:  6,5"

Crossover Frequency:  2,0000 Hz

Frequency Response:  300 - 22,000 Hz

Sensitivity:  89 dB (2,83 V/1 m)

Nominal Impedance:  4 Ω

Maximum SPL:  112 dB

Finish:  Black piano lacquer

Dimensions (W x H x D):  282 x 1069 x 371 (91 w/o foot) mm

Weight:  20,9 kg