Heritage Audio BRITSTRIP – 73-Style Channel Strip with EQ and Diode Bridge Compressor

50 YEARS OF ANALOG DESIGN IN ONE RACK SPACE.

Introducing the Heritage Audio BritStrip — the culmination of 50 years of analog design in a single rack unit. Britstrip nails the sound of yesterday’s iconic recordings for today’s demanding engineers.
The BritStrip combines a real-deal 73 mic preamplifier, an expanded 73 equalizer, a discrete Class-A DI, and the infamous diode bridge compressor from the Heritage Audio Successor. The closest equivalent of the BritStrip would be chaining together a 73JR, 73EQJR and mono Successor — a $3000 value pack in itself, with added routing flexibility.

THE MIC PREAMP THAT MEETS ALL THE DEMANDS.

The BritStrip starts with the same preamp as our 73JR, with a new custom input transformer co-designed with Carnhill and exclusively made for HA in the St Ives factory.. The preamp also features a custom Carnhill St Ives output transformer, which completes it’s all discrete, Class-A, 3-gain stage design. The preamp features 80 dB of gain, 20dB pad, phase reversal and an impedance switch for 1200 or 300 ohm input.

THE DISCRETE CLASS-A DI

The DI is also taken from the highly acclaimed design found in the Heritage Audio 73JR, an all-discrete Class-A JFET circuit in front of the microphone transformer, giving you all of the color and weight you could ask for.
The DI also includes a passive thru output to feed a separate amplifier.

AN EXPANDED 73 EQUALIZER.

The BritStrip eq features 3 Vinkor pot core inductors in the mid band and high pass filter sections. The impact is hard to believe with extreme boosts being exceptionally musical.
The mid band is great for sculpting fat and punchy snare, kick, guitars, vocals — you name it! No need to be subtle like you would with most eqs — BritStrip doesn’t sound phasey or loses headroom in extreme settings.

• <> Carnhill based, transformer coupled balanced inputs and outputs for added character and vintage vibe.
• <> 73 style class A output stages bring the desired 73 sound to your mix or drum buses.
• <> Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for lo gain ribbon mics. Input is transformer balanced and floating.
• <> Line input impedance: 10K Ohms bridging, transformer balanced and floating.
• <> DI input impedance: Greater than 2 Megohms, unbalanced.
• <> Output impedance: Less than 75 Ohms, transformer balanced and floating, to drive a load of 600 ohms (factory terminated).
• <> Maximum output: Greater than +26dBu into 600 ohms.
• <> THD: Less than 0.025% at 1 Khz, less than 0.05% at 100Hz.
• <> Frequency response: 20Hz ( +0.3dB ) to 20Khz (-0.2dB)
• <> Maximum gain: Slightly greater than 80dB
• <> Noise: Less than -125dBu EIN.
• <> EQUALIZER SECTION:
• <> 73 High and low shelving bands with additional bell-like response.
• <> 73 dual Vinkor inductor based mid band with extended Q functions.
• <> 73 inductor based low pass filter.
• <> COMPRESSION SECTION:
• <> Diode-bridge based compression excels in bringing 2nd order harmonic distortion characteristics and true vintage tone while eliminating nasty odd harmonic content.
• <> Ultra-fast attack and release time options never found in vintage designs allows for far more flexible settings, including FET like sounds and volume maximizing without transient artifacts.
• <> Complex sidechain filtering options work with the already common high pass filters, introducing mid band peak type filters and high-frequency compression, allowing bus correction not possible before.
• <> Sidechain SEND and RETURN connections allow for external sidechain signals or further external processing of the internal one.
• <> Blend control offers built-in parallel compression without any external equipment. Blend ON/OFF button allows for instant comparison in between WET