2 kanals rør mikrofon preamp.
Håndbygget stereo rør mikrofon preamp fra England og Pullet passiv EQ, type Pultec i combo. Perfekt til vokalindspilning.
"Designer Vic Keary is without question the finest practitioner of valve audio design, and these lovingly hand-built units are highly desirable to the keen-eared". Omtale af George Shilling for Resolution Magasine
The Earlybird 2.2 is a two channel all valve pre-amp employing a balanced push-pull circuit, which as far as we know, is unique in this application. The use of this type of circuit gives very low noise and plenty of headroom with minimal distortion. These factors coupled with a switchable input impedance will mean the user can get a very natural interpretation of whatever sound the microphone is picking up, whether the mic is valve, ribbon, moving coil or FET.
The Earlybird 2.2 retains all of the features of the previous Earlybirds. We have added an extra pair of inputs to allow permanent connection to a Pullet EQ. In addition the active EQ section now has switchable frequencies on the mid and bass lift sections. The Gain controls have now been simplified and incorporated into a Function switch.
After much dedicated development work in conjunction with Brian Sowter, we have arrived at the pinnacle of audio transformer design. Both the input and output transformers have been optimised for use in our unique circuit. This results in more headroom and lower distortion especially at low frequencies.
The Earlybird 2.2 need not stand idle once the mixing process has begun. The line input facility means that the sonic haracteristics and EQ facilities of the Earlybird 2.2 can be fully utilised on any mono or stereo signals that the user feels may benefit from such enhancement. With this in mind the Pullet acts as a perfect companion for precision mid range EQ.
We believe that the Earlybird 2.2 is not only the finest mic amp available for todays recording environment but combined with its EQ and Pullet compatability, the most versatile.
The Pullet is a passive equaliser originally designed to complement the Earlybird pre-amp. The Pullet will provide a variable Q boost at 11 frequencies of 21 dB and simultaneously a cut at 11 frequencies of 21dB. In addition high top can be boosted or cut with a shelving filter. The Earlybird will provide the gain makeup required after a line level signal has been passed through the pullets passive EQ network. This provides an excellent arrangement due to the fact that the passive EQ of the pullet gives full control over any midrange frequencies whilst the active EQ of the Earlybird can give a smooth sounding control over the bass and top frequencies. The fact is that passive EQ can give a much better result when radically boosting or cutting mid frequencies with a tight Q than active EQ can ever do.
Its possible to boost a narrow band of midrange by 21dB with a musical sounding result using the pullets passive network whereas an active EQ may well start to sound harsh and begin to ring.
The pullet has lately been re-designed in order to allow it to be used with any preamp available. The preamp will need to give between 38 to 40 dB of gain makeup and it ideally will have an input impedance of 1200 . A range of commercially available preamps have been used during testing of the pullet and all have given excellent results.
The high input impedance (10k) of the Pullet means that it will give optimum performance when placed in a chain after any piece of equipment.
The mid boost frequencies are:
800 Hz 3.5 KHz
1.2 KHz 4.4 KHz
1.6 KHz 5 KHz
2 KHz 6.3 KHz
2.5 KHz 8.5 KHz
3 KHz
The mid cut frequencies are:
230 Hz 2 KHz
340 Hz 2.8 KHz
500 Hz 4 KHz
700 Hz 6 KHz
1 KHz 8 KHz
1.4 KHz
The air control will shelve as a lift from 15 KHz, 12 KHz and 10 KHz. It will cut from 15 KHz, 11 KHz and 6 KHz.