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Zed Audio Draconia Instruction & Installation Manual

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Instruction and Installation Manual
MINOTAUR
DRACONIA
DREADNOUGHT
LEVIATHAN
RA
Designed and manufactured in the
United States of America

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Summary of Contents for Zed Audio Draconia

  • Page 1 Instruction and Installation Manual MINOTAUR DRACONIA DREADNOUGHT LEVIATHAN Designed and manufactured in the United States of America...
  • Page 2 Page 18 Installation instructions Pages 19 to 20 Specifications Pages 21 to 25 MINOTAUR Pages 26 to 34 DRACONIA/DREADNOUGHT Pages 35 to 48 LEVIATHAN Pages 49 to 61 ..Pages 62 to 66 Suggested Systems Page 67...
  • Page 3 DRACONIA is the smaller of the new four channel offerings at 125w x 4 at 4 ohms and DREADNOUGHT is the “Bad Boy”rated at 250w x 4 at 4 ohms. These amplifiers are suitable for use in almost any system, small or large.
  • Page 4 MYTHS, MAGIC AND FACTS mplifiers: What are they and what do they do? ALL amplifiers are basically power supplies! This will shock almost all who read this. Audio amplifiers are really a valve between the power supply and the speaker. This valve is “instructed”...
  • Page 5 MYTHS, MAGIC AND FACTS Let us use a 50w amplifier as our example. We shall assume a lossless output stage and a perfectly regulated power supply capable of tons of current and enough rail voltage to supply 8 ohm loads.. The constant voltage amplifier will deliver 14.14 volts across whatever load we present to it.
  • Page 6 MYTHS, MAGIC AND FACTS Class A and class B amplifiers do not have output filters and so the feedback network is always taken off from the output node of the amplifier. Class D amplifiers have a “monkey on their backs” in that they ALL have to have an output demodulator filter to get rid of the high frequency carrier.
  • Page 7 15 times. The DCR of our output inductors is an order of magnitude lower than the above, even with Draconia having the skinniest wire we use less turns as our inductors are in the 22-30uH range. We use switching frequencies close to half a megahertz (500KHz) and so our filter parts are of lower values.
  • Page 8 MYTHS, MAGIC AND FACTS Please read this paragraph very carefully. When typical bench testing of amplifiers is performed we generally use sine waves, a quite severe torture test for almost all amplifiers. The stress on both the power supply and the actual amplifier is far greater than with music or speech.
  • Page 9 MYTHS, MAGIC AND FACTS Output level all the time, in fact very rarely. So referring back to the fact that the average level is about 10-15% of the maximum or peak power of the amplifier, the efficiency is substantially lower than the 90+%. Typically with a class D amplifier this figure is around 75% or less which is an order of magnitude better than class B amplifiers.
  • Page 10 MYTHS, MAGIC AND FACTS Our design philosophies have been influenced by both the professional and home audio markets. Traditionally the professional market has been driven by reliability with sound quality as second. The home market was the reverse. Today however both reliability and sound quality carry equal weight in both sectors.
  • Page 11 MYTHS, MAGIC AND FACTS Oh I forgot some facts about cables I would like to mention. This applies really to home stereo. The typical RCA patchcord cable length from CD player/Tuner to the pre amplifier is maybe 1.5 metres (4.8’). Even if the capacitance between the inner conductor and shield is 350pF (Pico Farads) the CD player or tuner has absolutely ZERO knowledge of this amount of capacitance.
  • Page 12 MYTHS, MAGIC AND FACTS ed does not recommend the use of power distribution blocks for the purpose of distributing the +12volt voltage to several amplifiers. The reason is that the vehicle’s battery is the lowest AC impedance point in the power grid of the vehicle. We want each amplifier to draw it’s current from this low impedance point.
  • Page 13 MYTHS, MAGIC AND FACTS amping Factor - This amplifier specification has been blown out of all proportion. What it means is the ability of the amplifier to resist a change in it’s output voltage. The formula is DF= Speaker Z / Amplifier output Z (where Z is impedance). So many manufacturers have claimed ridiculous, and often false damping factors.
  • Page 14 This term does not refer to how much room there is above your head! Rather it is a specification that signifies how good or bad the power supply is. Zed Audio has NEVER quoted a headroom specification. Why you may ask? Simple our amplifiers have no headroom, zero dB, zip dB, nada dB however you say it.
  • Page 15 MYTHS, MAGIC AND FACTS eadroom - continued. So a 100w/ch amplifier running into 4 ohms must develop 20 volts across the speaker terminal. This requires a net (under load) rail voltage of about +/- 33 volts. Now for it to have 3dB of headroom it must be capable of delivering 28.28 volts across the speaker terminal.
  • Page 16 MYTHS, MAGIC AND FACTS ubsonic filters and CLIPPING. The former are simply steep slope high pass filters with a frequency range between 10 to 50Hz. Their only function is to filter out those frequencies which lie below audibility. The woofer’s cone will not “flop” around as it does without the use of the filter and because all the low frequency energy that we cannot hear is filtered out, the amplifier runs more efficiently since it does not have to amplify all those inaudible low frequencies.
  • Page 17 The following pages show some interesting facts about sound, hearing issues, power and most of all dispel many of the ill gained facts in the car audio industry. DECIBELS (dB) POWER RATIO VOLTAGE RATIO 1.12 1.06 1.17 1.08 1.26 1.12 1.58 1.26 1.414...
  • Page 18 Page 16...
  • Page 19 Setting the controls on amplifiers evel control - This control is the most misunderstood control on any amplifier. It’s sole purpose in life is to level match the head unit’s output voltage to the gain structure of the amplifier so that the user can use the head unit’s volume control in the “best physiological position”.
  • Page 20 Quality control (QC) is a process which begins from the first designs entered into a computer and then never ends. Zed is continually striving to improve the products which we design and manufacture. All our semiconductors are purchased from either the manufacturer direct or through reputable distributors.

  • Page 21: Installation Instructions

    Installation Instructions Location: Choose a suitable location in the vehicle which will allow sufficient airflow over the amplifier. The preferred mounting direction is with the heatsink fins in a vertical direction. However we do recognize that this is not always possible. Mounting the amplifier(s) These amplifiers can be mounted in one of two ways.

  • Page 22: Connecting The Amplifier

    Connecting the Amplifier Once the amplifier has been correctly mounted the electrical connections can now be made. The first step is to connect the loudspeakers. Using the appropriate size of wire (we recommend a min of #14) connect the speakers as shown in later diagrams, depending on which amplifier(s) are being installed.

  • Page 23: Specifications

    Specifications Specification MINOTAUR MINOTAUR Continuous Output Power into 2 ohm 1300w x 1 Continuous Output Power into 4 ohm 750w x 1 Continuous Output Power 2 AMPLIFIERS bridged into 4 ohm 2600w x 1 Continuous Output Power 2 AMPLIFIERS bridged into 8 ohm 1500w x 1 Minimum Speaker Impedance 2 ohm...
  • Page 24 Specifications Specification DRACONIA Continuous Output Power into 2 ohm 240w x 4 Continuous Output Power into 4 ohm 150w x 4 Continuous Output Power 2 channels bridged into 4 ohm 480w x 2 Continuous Output Power 2 channels bridged into 8 ohm...
  • Page 25 Specifications Specification DREADNOUGHT Continuous Output Power into 2 ohm 400w x 4 Continuous Output Power into 4 ohm 250w x 4 Typical Output Power into 4 ohm per channel (1% THD) 300w x 4 Continuous Output Power 2 channels bridged into 4 ohm 800w x 2 Continuous Output Power 2 channels bridged into 8 ohm 500w x 2...
  • Page 26 Specifications Specification LEVIATHAN Continuous Output Power into 2 ohm 330w x 6 Continuous Output Power into 4 ohm 190w x 6 Continuous Output Power into 6 ohm ++ 125w x 6 Continuous Output Power into 8 ohm 100w x 6 Typical Output Power into 4 ohm per channel (1% THD) 235w x 6 Continuous Output Power 3 pairs of channels bridged into 4 ohm...
  • Page 27 Specifications Specification Frequency Response 15Hz-240Hz Bandwidth Limited Input Voltage range 0 to 2.25 volt (can be factory adjusted to any setting)t Input Impedance from 15Hz to 240Hz 10K ohm Output impedance Approximately 100 ohms Output voltage Can drive a 600 ohm load at 9v RMS Noise below 5 volt output (30KHz limited) -100dB Total Harmonic Distortion 15Hz to 240Hz...
  • Page 28 MINOTAUR MINOTAUR is the first of our new generation of mono block/single channel amplifiers. These are capable of full range operation for those who demand high power for midrange and lower midrange drivers in multi way systems. However its primary goal is for sub woofers.
  • Page 29 Four (4) MINOTAURS may be connected in a parallel-bridge configuration when the need for ultra high power is required. Refer to the later diagrams. Graphs showing the difference between conventional and constant Q equalizers LOW IMPEDANCE LOADS - 1 Ohm and below - Our philosophy WE ARE ABSOLUTELY 100% AGAINST THESE LOADS There is no reason to run a “daily driver”...
  • Page 30 TRACK 7 FUSE REMOTE >3v POWER CONNECTIONS DESIGNED AND ASSEMBLED BATT+ IN THE USA by ZED AUDIO REFER TO THE MANUAL FOR INSTRUCTIONS ON HOW TO BRIDGE A PAIR OF THESE AMPLIFIERS MINIMUM LOAD IS 2 OHM CHASSIS A SECOND DRIVER MAY BE CONNECTED...
  • Page 31 TRACK 7 FUSE REMOTE >3v POWER CONNECTIONS DESIGNED AND ASSEMBLED BATT+ IN THE USA by ZED AUDIO REFER TO THE MANUAL FOR INSTRUCTIONS ON HOW TO BRIDGE A PAIR OF THESE AMPLIFIERS MINIMUM LOAD IS 2 OHM CHASSIS A SECOND DRIVER MAY BE CONNECTED...
  • Page 32 TRACK 7 FUSE REMOTE >3v POWER CONNECTIONS DESIGNED AND ASSEMBLED BATT+ IN THE USA by ZED AUDIO REFER TO THE MANUAL FOR INSTRUCTIONS ON HOW TO BRIDGE A PAIR OF THESE AMPLIFIERS MINIMUM LOAD IS 2 OHM CHASSIS A SECOND DRIVER MAY BE CONNECTED...
  • Page 33 LOW PASS LEVEL LEVEL MODE MODE POWER CONNECTIONS DESIGNED AND ASSEMBLED BATT+ IN THE USA by ZED AUDIO MASTER MASTER REFER TO THE MANUAL FOR INSTRUCTIONS ON HOW TO BRIDGE A PAIR OF THESE AMPLIFIERS FUSE MINIMUM LOAD IS 2 OHM...
  • Page 34 LOW PASS LEVEL LEVEL MODE MODE POWER CONNECTIONS DESIGNED AND ASSEMBLED BATT+ IN THE USA by ZED AUDIO MASTER MASTER REFER TO THE MANUAL FOR INSTRUCTIONS ON HOW TO BRIDGE A PAIR OF THESE AMPLIFIERS FUSE MINIMUM LOAD IS 2 OHM...
  • Page 35 LOW PASS LEVEL LEVEL MODE MODE POWER CONNECTIONS DESIGNED AND ASSEMBLED BATT+ IN THE USA by ZED AUDIO MASTER MASTER REFER TO THE MANUAL FOR INSTRUCTIONS ON HOW TO BRIDGE A PAIR OF THESE AMPLIFIERS FUSE MINIMUM LOAD IS 2 OHM...
  • Page 36 FOUR MINOTAURS in a parallel/bridge mode configuration continued. The MASTERamplifier receives the signals from the source unit. SLAVE 1 and the MASTER are bridged as a pair as per instructions on Page 32. The MASTER drives from its NON INVERT line output to SLAVE 2 SLAVE 2 drives SLAVE 3 from its INVERT line output.
  • Page 37 The overbuilt power supplies are run at 75KHz and DRACONIA uses six 110 amp power MOSFETs in the supply, DREADNOUGHT has twelve. Each amplifier employs a total of 13 regulated power supplies, so they are quite immune to changes in battery voltage.
  • Page 38 REAR REAR REAR BATTERY TRACK 7 TRACK 7 TRACK 7 FUSE REMOTE >3v BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED IN THE USA by ZED AUDIO MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR CHASSIS Page 36...
  • Page 39 REAR REAR REAR BATTERY TRACK 7 TRACK 7 TRACK 7 FUSE REMOTE >3v BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED IN THE USA by ZED AUDIO MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR CHASSIS Page 37...
  • Page 40 REAR REAR REAR BATTERY TRACK 7 TRACK 7 TRACK 7 FUSE REMOTE >3v BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED IN THE USA by ZED AUDIO MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR CHASSIS Page 38...
  • Page 41 REAR REAR REAR BATTERY TRACK 7 TRACK 7 TRACK 7 FUSE REMOTE >3v BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED IN THE USA by ZED AUDIO MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR CHASSIS Page 39...
  • Page 42 REAR REAR REAR BATTERY TRACK 7 TRACK 7 TRACK 7 FUSE REMOTE >3v BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED IN THE USA by ZED AUDIO MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR CHASSIS Page 40...
  • Page 43 REAR REAR REAR BATTERY TRACK 7 TRACK 7 TRACK 7 FUSE REMOTE >3v BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED IN THE USA by ZED AUDIO MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR CHASSIS Page 41...
  • Page 44 REAR REAR REAR BATTERY TRACK 7 TRACK 7 TRACK 7 FUSE REMOTE >3v BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED IN THE USA by ZED AUDIO MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR CHASSIS Page 42...
  • Page 45 REAR REAR REAR BATTERY TRACK 7 TRACK 7 TRACK 7 FUSE REMOTE >3v BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED IN THE USA by ZED AUDIO MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR CHASSIS Page 43...

  • Page 46: Signal Source

    REAR REAR REAR BATTERY TRACK 7 TRACK 7 TRACK 7 FUSE REMOTE >3v BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED IN THE USA by ZED AUDIO MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR CHASSIS Page 44...
  • Page 47 TRACK 7 TRACK 7 FUSE REMOTE >3v BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED IN THE USA by ZED AUDIO MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR CHASSIS ALTERNATE CONNECTION WOOFER BRIDGED ON CHANNELS 3+4 Page 45...
  • Page 48 REAR REAR REAR BATTERY TRACK 7 TRACK 7 TRACK 7 FUSE REMOTE >3v BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED IN THE USA by ZED AUDIO MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR CHASSIS Page 46...
  • Page 49 Below is shown the bridged connection for the four channels. BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED IN THE USA by ZED AUDIO MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR MINIMUM IMPEDANCE IS 4 OHM PER BRIDGED PAIR Page 47...
  • Page 50 DRACONIA/DREADNOUGHT Front panel controls 40Hz EQ SOURCE HIGH PASS MODE LOW PASS SUBSONIC MODE LEVEL 1.3v +4dB 1.5K 1.5K 0.25v +12dB FLAT HP LP/BP 1.3v 1.3v 1.5K 1.5K 1.5K 1.5K 0.25v 0.25v FLAT FLAT HP HP LP/BP LP/BP INPUTS HIGH PASS...
  • Page 51 LEVIATHAN LEVIATHAN We are proud to introduce the second generation of the LEVIATHAN amplifier. The previous generation LEVIATHAN proved that there is a need for multi channel amplifiers (>4 channels) in the mobile market. Several improvements have been incorporated into the new amplifier.
  • Page 52 11) Run channels 1+2 as high pass and channels 3,4,5 and 6 as low pass for a typical front stage system. 12) Run channels 1+2 in high pass for the front stage, channels 3+4 in high pass for the rear fill and channels 5+6 for the subs. 13) Run channels 1+2 in high pass for the front stage tweeters, channels 3+4 in band pass for the front stage midrange and channels 5+6 for the subs.
  • Page 53 REAR REAR REAR REMOTE >3v TRACK 7 TRACK 7 TRACK 7 BRIDGE BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR IN THE USA by ZED AUDIO FUSE BATTERY Page 51...
  • Page 54 TRACK 7 TRACK 7 BRIDGE BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR IN THE USA by ZED AUDIO FUSE BATTERY MINIMUM IMPEDANCE IS 4 OHMS PER BRIDGED OUTPUT Page 52...
  • Page 55 REAR REAR REAR REMOTE >3v TRACK 7 TRACK 7 TRACK 7 BRIDGE BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR IN THE USA by ZED AUDIO FUSE BATTERY Page 53...
  • Page 56 REAR REAR REAR REMOTE >3v TRACK 7 TRACK 7 TRACK 7 BRIDGE BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR IN THE USA by ZED AUDIO FUSE BATTERY Page 54...
  • Page 57 REAR REAR REAR REMOTE >3v TRACK 7 TRACK 7 TRACK 7 BRIDGE BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR IN THE USA by ZED AUDIO FUSE BATTERY Page 55...
  • Page 58 REAR REAR REAR REMOTE >3v TRACK 7 TRACK 7 TRACK 7 BRIDGE BRIDGE BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR IN THE USA by ZED AUDIO FUSE BATTERY Page 56...
  • Page 59 BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR IN THE USA by ZED AUDIO BRIDGE FUSE Chs 5+6 MAY BE RUN IN BRIDGE BATTERY MODE (MIN SPEAKER IMPEDANCE IS 4 OHMS)
  • Page 60 BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR IN THE USA by ZED AUDIO BRIDGE FUSE Chs 5+6 MAY BE RUN IN BRIDGE BATTERY MODE (MIN SPEAKER IMPEDANCE IS 4 OHMS)
  • Page 61 BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR IN THE USA by ZED AUDIO FUSE BATTERY ANY PAIR OF CHANNELS MAY BE BRIDGED (MIN SPEAKER IMPEDANCE IS 4 OHMS) Page 59...
  • Page 62 BRIDGE POWER CONNECTIONS BATT+ DESIGNED AND ASSEMBLED MINIMUM LOAD IS 2 OHM/CHANNEL or 4 OHM/ BRIDGED PAIR IN THE USA by ZED AUDIO FUSE BATTERY Chs 5+6 MAY BE RUN IN BRIDGE MODE (MIN SPEAKER IMPEDANCE IS 4 OHMS) Page 60...
  • Page 63 LEVIATHAN jumper links to parallel the inputs instead of using external Y-Adaptors. Remove the Lexan top and remove the three RCA connector plugs from the main PCB. These are plugged into connectors “CON4, CON2 and CON3” as shown below. When re inserting them they can only lock in in one direction.
  • Page 64 the Egyptian sun God was the inspiration behind this new product. He is considered the father of Gods, and was the most important and worshipped king of Gods in ancient Egypt.. We are sure that our humble version of RA will also be “worshipped”. It is truly a unique pre amplifier.
  • Page 65 Once the signal leaves the low pass crossover it is routed to the Sub Harmonic Synthesizer. I bet that most have never heard of such a device but they are common in pro audio and have been made for car audio however in much simpler forms. The basic principle is to take a band of frequencies and synthesize them down to half their original frequency (one octave down).
  • Page 66 UNITY GAIN 10:1 THRESHOLD OF COMPRESSION >20:1 = LIMITING OUTPUT SIGNAL INPUT SIGNAL The ATTACK time determines how quickly the compressor can react to signals which are above the threshold. The RELEASE time determines how quickly the compressor releases the signal and return to normal gain. The RATIO control sets the ratio of input level to output level and typically compressors have ratio controls with ranges from 2:1 up to 12:1 dependent on the type of signal being compressed.
  • Page 67 Instructions for setting the Threshold control of the compressor. The compressor’s threshold control is relatively easy to set as long as one understands the various electronic “blocks” involved. Please read the following text carefully. RA can be considered simply as a pre-amplifier, with variable gain (the front panel volume control) and a compressor circuit whose threshold has nothing to do with the amplifier which drives the sub woofers or where the gain setting is on the amplifier.
  • Page 68 RA Panel controls and connections SUB HARMONIC SYNTHESIZER COMPRESSOR HIGH LOW PASS MASTER 45Hz 32Hz THRESHOLD VOLUME We feel the panel controls require no further explanation BATT GND REM OUTPUT INPUTS POWER FUSE FROM REMOTE OUT 0.5A OF HEAD UNIT GROUND TO BATTERY OR CLEAN 12v SUPPLY POINT PLACE FUSE AS CLOSE TO THIS +12v POINT...
  • Page 69 LEVEL controls are independent for each channel pair. DRACONIA or DREADNOUGHT - Set the MODE switch on ch 1+2 to the “3+4” position and set channels 3+4 to run in LP/BP on the slide MODE switch and to “SUB” on the push MODE switch.
  • Page 70 Troubleshooting Amplifier will not power up. Check for battery power at amplifier’s power terminals. Check for voltage at REMOTE terminal must be greater than 3 volts Make sure protection LED is off. If it is on, turn the amplifier off for 5 seconds and then power up again.

  • Page 71: Limited Warranty

    This warranty is for a period of 90 days from date of purchase from Zed Audio Corporation or an authorised dealer. This warranty is valid in the country in which it was purchased and is non-transferable.
  • Page 72 Zed Audio is not responsible for the freight from the consumer to Zed Audio when our refund option is exercised. Every product built by Zed Audio goes through a series of exhaustive tests and so we are 100% sure that each and every product meets the advertised specifications. Please have...

  • Page 73: Registration Form

    Registration Form Name of owner: Address: Name of product(s) purchased: Serial number: Name and address from whom this product was purchased. Date of purchase Please do not forget to mail a copy of the retail invoice OR scan it an email to us. If you are mailing us your registration, you may print a copy of this page Page 71...
  • Page 74 New products scheduled for 2012 release Owing to the bad economic climate we have decided to delay the launch of MEGALITH and the tube hybrid amplifiers. We are instead launching 5 new products which will fit below these products in this manual. They are less expensive but do not lack features or power.

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