CTH-8550 Integrated Amplifier User Manual
Table of contents 1. Preliminary notes _______________________________________________________ 5 2. Introduction ___________________________________________________________ 5 3. Brief description ________________________________________________________ 5 4. Warranty ______________________________________________________________ 6 5. Installation ____________________________________________________________ 6 5.1. 5.2. 5.3. 6.
darTZeel CTH-8550 integrated amplifier User Manual 1. Preliminary notes 3. Brief description Your CTH-8550 comes with a USB activation key to provide the required identification data to your CTH-8550‘s internal CPU. Your CTH-8550 represents the culmination of all the research and development we have brought to the audio industry over the past decades. You must use the USB activation key to “unlock” your CTH-8550 the first time you operate it.
5.2. 4. Warranty Your CTH-8550 is guaranteed for one full year (parts and labor), against any breakdown or component failure, as is the tradition in Switzerland for such equipment. As we view it, any electrical component with no moving parts either will fail within days, or will last virtually “forever.” Location Before making any connections, you should carefully plan the location where you will install your gear.
6. The CTH-8550 in detail 6.1. Front panel 1. 2. 3. 4. 5. 6. 7. 8. 9. A. B. C. D. RCA Input 1 RCA Input 2 RCA Input 3 RCA Input 4 Phono MM (optional) Phono MC (optional) Zeel Input 1 Zeel Input 2 XLR Balanced input → → → → To enter the configuration-setting menu To Display/Hide time and date To Enable/Disable display Auto-Off To Display serial number and owner’s name Press once for 5 seconds of display. Press twice to display the owner’s name permanently.
6.2. Rear panel We think the rear panel labeling speaks for itself. Nevertheless, we will try to keep you awake, by providing some general information… . You will note that we provide two USB ports on the lower left corner. The standard rectangular port is the one into which you will insert your USB key when registering, or when a firmware update becomes available. When you register your CTH-8550, you will need to insert your USB key into the rear panel’s rectangular USB port.
7. Activation key procedure Please remember that until you complete its registration, your CTH-8550 will operate only for the 15 minutes following each new powering on. Registration procedure: We provide a USB activation key with your CTH8550. This key is blank when you receive it. Ask your dealer to send you your activation-key data file. You will receive this by email in the form of a zipped (data-compressed) folder containing a file with a “dtz” name extension. How to proceed: 1.
9.1. Power on sequence Here is what you will see on the display screen when powering the darTZeel CTH-8550 on: 10. Full configuration and settings Press the Menu key “A”, (chapter 6.1, page 7) on the front panel, and then play with the charts… You can choose the source which will be routed to the RCA REC outputs. Pressing + or – will change the illumination of the screen in these four increments: “Listening” means that you will record what you are listening to. Press OK when set.
Go to Page 13 After selecting “Rename” from the above PARAMETERS menu, the default input source displayed is the one you have selected for listening. After selecting “Settings” from the above PARAMETERS menu, the default input source displayed is the one you have selected for listening. Press ▲ or ▼ in order to change the source to be renamed. Press ▲ or ▼ to select another source. Press + or – in order to adjust the input level. Press ◄ or ► to select the character (alphanumeric key) to be changed.
Previous page Go to previous page Clock & Diag SEE NEXT PAGE This is the maximum level at which your CTH-8550 will power on. In the above example, if - and only if - you listened at more than -26dB, the output level will resume to this value at the next start. Press + or – to set the desired level. Press OK to store this value. Press RST to restore the factory default. Press ► to set the source.
Go to Page 11 See Start time If you have to set both the time and the date, it will be easier first to set the date, and then the time. When “Auto start” is set to On, your CTH-8550 will power itself on at the time programmed on the next screen shown below. This screen indicates the software version and the registration status. Press + or - to set the correct hour. Press ► to jump to the minute figures. Press + or – to set the correct minute. Press OK to save.
11. Some advice and tips 11.1. Cleaning and upkeep The darTZeel CTH-8550 has not only been designed to provide you intense moments of musical pleasure; it also has been designed to withstand the rigors of time – assuming that you take proper care. The few but important warnings are the following: Never, ever attempt to short-circuit the Speaker Binding Posts. Repeated short circuits will lead to permanent damage to the corresponding output stage.
13. Technical data darTZeel CTH-8550 Nominal output power : 200 watts RMS (230 watts peak) @ 8 ohms. 330 watts RMS (360 watts peak) @ 4 ohms. 330 watts RMS (400 watts peak) @ 2 ohms (software limited). Line Gain Power Stage Gain : : 12 dB nominal, up to 22dB. 26 dB @ 8 ohms. Input impedances : Phono MM* Phono MC* RCA: Zeel BNC: XLR: = = > > > 47 kohms. Neumann RIAA 4th pole included. 1 kohms. Neumann RIAA 4th pole included. 30 kohms. 50 1 ohm. 15 kohms between Pin 1 and 2.
