Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Hafler IRIS
Summary of Contents for Hafler IRIS
- Page 1 Hafler Iris Preamplifier...
-
Page 2: Table Of Contents
In this manual, beyond telling you how to use IRIS, we will try to convey the spirit and method of The J-FET devices share many technical and sonic charac- teristics with the best of vacuum triodes. -
Page 3: Installation
DO NOT use paper towels or any coarse material to clean the face-plate as these materials may scratch the insert. IRIS is shipped with styled end caps on its front panel. Rack- mounting ears are available from the factory for standard 19”- wide racks. - Page 4 The SWITCHED a total (for all outlets) of 580 Watts (continuous-rating). The IRIS power switch is very rugged and can sustain the turn- on surge of large amplifiers. However, some audio purists prefer to connect large power amplifiers through alternate line- supply arrangements to minimize any added magnetic fields in the low-signal environment of their preamplifier.
- Page 5 Excepting phono, all input impedances, for the entire preampli- fier, are in the 15-28k ohms range. To get you to the basic operation of IRIS as quickly as possible, we have deferred the discussion of EPL and TAPE loops to a...
-
Page 6: Operation
“dead” on turn-on. For now, make sure that all six of the group of round-button switches are in theirOUT position. When IRIS is powered-up, the MUTE legend will light alone, Turn-On/Off along with a small GREEN indicator, between the knobs, called logic the VOLUME/BALANCE (V/B) indicator. - Page 7 EPL and TAPE loops. Tape Loop Systems In IRIS, the EPL output jacks and RECORD output jacks are activated only when the related panel switch is engaged. This completely disconnects the inputs of unpowered accessories- often a cause of distortion.
-
Page 8: Iris Block Diagram
IRIS FUNCTIONAL BLOCK DIAGRAM (ONE CHANNEL SHOWN) MON I TOR SWITCH MON I TOR SWITCH bREC MAIN... - Page 9 Engaging either RECORD switch on IRlS brings into action special safety logic which you may easily interpret as faulty operation, until you understand its put-pose: 1) IRIS refuses TAPE for TAPE KEY 2 and RECORD 2. These are potentially danger- ous sources of unexpected high-energy positive feedback loops, having been known to destroy more than a few loud- speakers.
- Page 10 Tape The tape MONITOR switches at first appear to allow only a Monitoring redundant selection of what you hear from your deck(s) when Switches you use the TAPE KEY(s). The important difference is that MONITOR switches actually BREAK the audio path inside the preamplifier, allowing you to listen to the deck’s OUTPUT while its INPUT is being fed from any source selectable by the KEYS.
-
Page 11: Using The Iris Remote System
Both of the remote’s knobs are connected to a capacitive touch- volume/ sensing circuit. Touching either knob ALONE causes the remote Balance (V/B) to transmit the position of BOTH knobs to the IRIS receiver. The Command process takes approximately 1/8 second. At each successive Transmissions... - Page 12 Transfer of VOLUME and BALANCE at both preamplifier panel and re- V/B Control mote, IRIS automatically transfers control authority immedi- ately to whichever knob-set you use. Control stays there until you use the other set of knobs. At preamplifier power-up, V/B control always reverse to the preamplifier’s knobs, because the unpowered preamplifierdoes...
- Page 13 CAUTION: Since the IRIS remote is fun for many adults, it is likely that small children will also find it so. After a system turn-on, the REMOTE knobs may not be set where you left them at last listening. If you...
- Page 14 The rear of the IRIS receiver card has a recessed, keyed male connector which carries needed digital signals for allowing the IRIS system to be connected to coming Hafler IRIS-compatible accessories, in a manner similar to which dispersed computer terminals can share the same data lines without confusion.
-
Page 15: Operation
1) Remove the 4 screws on the bottom cover of the transmitter, and pull the cover off. 2) The battery polarities are clearly marked in the plastic holder, visible when the batteries are removed. Carefully observing these polarity markings, replace all 4 batteries. - Page 16 GAIN switch, accidentally using this setup for a HIGH OUTPUT cartridge can result in deceptively normaloutput levels, but with improper cartridge bflrr 1tt11. II 88 0 IRIS WITH COVER REMOVED. SHOWING LOCATION OF OPTIONAL CARTRIDGE LOADING PLUG-INS. frequency-response. RES I STOR CAPACITOR I R I S...
-
Page 17: Specifications
IRIS SPECIFICATIONS (Measurements at REC OUT) Phono Section: 20Hz-20kHz, Frequency Response: 5 Volts RMS, 20Hz-20kHz M a x i m u m Output Voltage: 20Hz-20kHz Totul Harmonic Moving Magnet: .002% Distortion & Moving Coil: .009% Noise Sensitivity: (For 0.5 volts RMS @ 1 kHz Moving Magnet: 6.0 mV RMS... - Page 18 Outlets: 72 amp surge 17” wide x 3” high x 8 1/2” deep Size: TRANSMITTER Input Selectors (or as redefined when IRIS compatible unit(s) Controls: are present), SX/Clear, Mute/Normal, Volume & Balance Knobs 2 7/8” wide, 11 1/2” high, 7 1/2” long...
-
Page 19: Warranty
The Hafler IRIS is warranted for 3 years from date of purchase, including parts, labor, and return shipping costs from the factory to the owner within the Continental USA.
Need help?
Do you have a question about the IRIS and is the answer not in the manual?
Questions and answers