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Summary of Contents for Zed Audio Kronos
- Page 1 Instruction and Installation Manual KRONOS LEVIATHAN Designed and manufactured in the United States of America...
- Page 2 Index Introduction and Technical talk Page 1-10 Installation Procedures Pages 11, 12 Specifications Page 13 KRONOS Installations Pages 14 to 24 LEVIATHAN Installations Pages 25 to 36 Fault finding Page 37 Warranty and Return Policy Pages 38 and 39 Upcoming products...
- Page 3 For those of you who have used our previous products, much of the information in this manual will be familiar. We have added some new interesting titbits. Over the past four years since the first Zed amplifiers were introduced, several events have occurred which have moved us into a new dimension of mobile amplification.
- Page 4 So with these facts established our class A or class B amplifiers channel power supply energy to the speaker but waste a lot of energy performing this feat. 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.
- Page 5 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 75-85% which is an order of magnitude better than class B amplifiers.
- Page 6 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. Cosmetics for obvious reasons are important in any sector.
- Page 7 Semiconductors have more tolerance in their specifications than any capacitor or resistor. A well known fact is that different types of capacitors work better at certain jobs than others. Example, disc ceramic capacitors are better in high frequency compensation circuits than film types.
- Page 8 Consider the theory. Energy(Joules) = Power(Watts) x Time(Seconds). The energy in a 1 Farad capacitor = 0.5CV.V = 0.5x1x12x12= 72 Joules. Let us assume an amplifier such KRONOS. Let us assume that we are playing it such that the channels(into 4 ohms each) are just clipping on the loudest musical peaks.
- Page 9 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 10 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 11 ridging two channels of an amplifier is not a magical thing. Most are mystified by the power figures quoted under the “bridge” column. It is actually very simple. When two channels are driving a common load, one channel is out of phase with the other by 180 degrees.
- Page 12 o 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.
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Page 13: 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 14: 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 15: Specifications
Specifications Specification LEVIATHAN KRONOS Continuous Output Power into 2 ohm per channel 500wx2 250wx6 Continuous Output Power into 4 ohm per channel 250wx2 150wx6 Typical Output Power into 4 ohm per channel (1% THD) 290wx2 175wx6 Continuous Output Power 2 channels bridged into 4 ohm... - Page 16 KRONOS This, the first of our new full range high quality class D amplifiers has been in development for the past 15 months. The switch to class D was not taken lightly and the target of these new amplifiers was quite simple. Perform as well as our “traditional” class A/ B amplifiers.
- Page 17 The turn on/off function of the audio section is done with opto-isolators which allows us to keep the control circuits fully isolated from the audio circuits. Important note: KRONOS Do NOT power up with the volume level high. The internal initializing circuits will “see”...
- Page 18 KRONOS Converting to run as a subwoofer amplifier is simple. Push in the switch from KRONOS “2ch LP” to “Mono LP. has some added features. The RCA sockets “3” and “4” are now another pair of inputs and so all four inputs can accept signals from the head unit’s front and rear outputs.
- Page 19 Let’s get back to the balance control. Here is some technical information for those of you KRONOS who wish to get the best out of . When a pair of channels of an amplifier are bridged, the process is: One channel is in phase with the incoming signal and the other is 180 degrees out of phase.
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Page 20: Signal Source
LOOP OUT MODE POWER 2ch LP SET ALL CONTROLS AS THEY WILL BE USED SIGNAL SOURCE BRIDGE BATT+ DESIGNED AND ASSEMBLED IN THE USA by ZED AUDIO SPEAKER CONNECTIONS POWER CONNECTIONS 1 2 3 4 AC VOLT METER Page 18... - Page 21 KRONOS run in two channel mode with FLAT response 3+4 = INPUTS HIGH LOWEQ PASS PASS SONIC BALANCE LEVEL MONO FLAT HP LP/BP PROT 1.3K 1.3K 3.4K 3.4K +12dB 8.6v 8.6v 0.25v 0.25v INPUT LOOP OUT MODE MODE CLIP POWER...
- Page 22 KRONOS run in two channel mode with HIGH PASS response 3+4 = INPUTS HIGH HIGH LOWEQ PASS PASS PASS SONIC BALANCE LEVEL MONO FLAT LP/BP PROT 1.3K 1.3K 1.3K 3.4K 3.4K 3.4K +12dB 8.6v 8.6v 0.25v 0.25v INPUT LOOP OUT...
- Page 23 KRONOS run in two channel mode with LOW PASS response 3+4 = INPUTS HIGH LOWEQ PASS PASS PASS SONIC BALANCE LEVEL MONO FLAT HP LP/BP PROT 1.3K 1.3K 1.3K 3.4K 3.4K 3.4K +12dB 8.6v 8.6v 0.25v 0.25v INPUT LOOP OUT...
- Page 24 KRONOS run in two channel mode with BANDPASS response 3+4 = INPUTS HIGH HIGH LOWEQ PASS PASS PASS PASS SONIC BALANCE LEVEL MONO FLAT HP LP/BP PROT 1.3K 1.3K 1.3K 1.3K 3.4K 3.4K 3.4K 3.4K +12dB 8.6v 8.6v 0.25v 0.25v...
- Page 25 KRONOS run as a sub-woofer amplifier 3+4 = INPUTS HIGH LOWEQ PASS PASS SONIC BALANCE LEVEL MONO FLAT HP LP/BP PROT 1.3K 1.3K 1.3K 3.4K 3.4K 3.4K +12dB +12dB 8.6v 8.6v 0.25v 0.25v INPUT LOOP OUT MODE MODE CLIP POWER...
- Page 26 KRONOS run in two channel mode with FLAT response in bridge mode 3+4 = INPUTS HIGH LOWEQ PASS PASS SONIC BALANCE LEVEL MONO FLAT HP LP/BP Y-ADAPTOR PROT 1.3K 1.3K 3.4K 3.4K +12dB 8.6v 8.6v 0.25v 0.25v INPUT LOOP OUT...
- Page 27 KRONOS run as a sub-woofer amplifier bridged 3+4 = INPUTS HIGH LOWEQ PASS PASS SONIC BALANCE LEVEL MONO FLAT HP LP/BP PROT 1.3K 1.3K 1.3K 3.4K 3.4K 3.4K +12dB +12dB 8.6v 8.6v 0.25v 0.25v INPUT LOOP OUT MODE MODE CLIP...
- Page 28 In the past 5 and 6 channel amplifiers have always had a modest power output, dictated by several factors. Size, weight and cost. Zed Audio has been able to overcome all three obstacles. With our full range class D technology and an intelligent power supply we have been able to eliminate the first two obstacles.
- Page 29 Y-adaptors or if you are bridging a pair of channels and need to feed both inputs with the same signal. KRONOS LEVIATHAN LEVIATHAN The same technology which went into...
- Page 30 THE SIX (6) INPUTS CAN BE DRIVEN FROM SIX DIFFERENT SOURCES OR Y ADAPTED AS REQUIRED REMOTE >3v 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 28...
- Page 31 DIFFERENT SOURCES OR Y ADAPTED AS REQUIRED REMOTE >3v 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 29...
- Page 32 THESE TWO INPUTS ARE DRIVEN FROM AN APPLICABLE SOURCE REMOTE >3v 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 30...
- Page 33 THESE TWO INPUTS ARE DRIVEN FROM AN APPLICABLE SOURCE REMOTE >3v 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 31...
- Page 34 THESE TWO INPUTS ARE DRIVEN FROM AN APPLICABLE SOURCE REMOTE >3v 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 32...
- Page 35 THESE TWO INPUTS ARE DRIVEN FROM AN APPLICABLE SOURCE REMOTE >3v 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 33...
- Page 36 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 Chs 5+6 MAY BE RUN IN BRIDGE MODE (MIN SPEAKER IMPEDANCE IS 4 OHMS) BATTERY Page 34...
- Page 37 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 Chs 5+6 MAY BE RUN IN BRIDGE MODE (MIN SPEAKER IMPEDANCE IS 4 OHMS) BATTERY Page 35...
- Page 38 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 36...
- Page 39 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 CHANNELS 5+6 MAY BE BRIDGED (MIN SPEAKER IMPEDANCE IS 4 OHMS) Page 37...
- Page 40 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.
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Page 41: 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 42 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 43 Upcoming products from Zed Audio We have some new products which will be introduced in late early 2010. We urge our customers to send us their requests for products which they would like to see in the line The first is a 4 channel amplifier, rated at 150w per channel at 4 ohms. It has some unique features never seen on a multi channel amplifier.
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Page 44: Registration Form
Registration Form Name of owner: Address: Name of product 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 42...
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