The DH-330 tuner is the perfect complement to Hafler preamplifiers in technology, sound quality and facilities, as well as appearance FM tuning was never easier surer, or more listenable. On a live broadcast the realism is breath-taking. Your favourite station is there - perfectly - when you just switch it on.
If reception is difficult, this tuner stands out. More stations, both weak and strong, simply sound better. The DH-330 is the tuner for the exceptional - in program content in broadcast quality and in listener perception
The Hafler experience is sheer pleasure. You get the lowest distortion and noise fast accurate tuning with ideal interstation muting, and a dynamic suppressor for multipath interference. A 75 Ω coaxial connection facilitates a shielded antenna connection, as well as 300 Ω lead in. A volume control and a front panel output make taping and headphone use simple and convenient.
Selectable muting enables you to "DX" every signal, or just scan those with acceptable signal strength for quality reception. The five-station memory provides instant access to your favorites while Auto-Search (a five-second pause mode) and bidirectional seeking make it easy to find all the others.
A Hafler designed microprocessor highlights the sophisticated technology which makes tuning simple and positive. Quartz-controlled digitally synthesized tuning - not hust a digital readout - provides precision lowest distortion reception. The non-volatile memory need no batteries. Even if the tuner is unplugged the last station you listened to will reappear precisely tuned and all five preset stations are retained.
Multipath interference can distort even a powerful signal. This is a pervasive problem in cities, and often in the thills. The DH-330 has an exclusive multipath and noise sensing Auto-Filter circuit which greatly improves listening response and high frequency separation On a clear signal it is deactivated.
Once on station, the tuner's selectivity - or ability to reject extraneous interference - is paramount Five tuned circuits in the "front end", including a triple-tuned RF stage , make the DH-330 exceptional. The superior isolation of three dual-gate MOSFETs provides exceptional rejection of spurious artefacts and reduces any possibility of generating Intermodulation Distortion in the presence of high level signals. The incoming signal does not affect the oscillator and the added selectivity keeps the mixer stage from being overloaded by off-channel signals Four ceramic filters in the IF stages have a flat group-delay-characteristic improving selectivity and phase linearity and lowering distortion.
Specifications
Useable Sensitivity: 113 dBf (2 µV)
50 dB Quieting Sensitivity:
Mono : 15,2 dBf (3,2 µV)
Stereo : 36,5 dBf (37 µV)
Total Harmonic Distortion (1 kHz, 100% modulation)
Mono : 0,1%
Stereo : 0,18%
Capture Ratio: 15 dB
Alternate Channel Selectivity: 60 dB
Stereo Separation: 45 dB (at 1 kHz); 35 dB (at 10 kHz)
Signal-to-Noise Ratio
Mono : 72 dB
Stereo : 68 dB
Power Requirements: 95 - 130 V, 190 - 260 V, 50/60 Hz
Power Consumption: 15 watts
AC Outlet: 1 switched
Dimensions (W x H x D): 17" x 3" x 8,5" = 1" for knobs
19" rack mounting accessories included
Weight: 9 lbs net