
Modwright LS 300 Balanced Tube Preamplifier
April 3, 2023
Gold Note PSU-10 Power Supply
April 4, 2023The Analog Bridge was designed to fill a niche left by our custom tube modifications for digital source equipment.
Due to the rapidly changing world of modern digital, we wanted a product that could be used with a variety of digital and analog SS sources. The Analog Bridge will not be replaced as digital technology progresses and system components change. It is an accessory that will be a constant and improvement in your system.
The purpose of the Analog Bridge, is to add the strengths and positive attributes of tubes to any system, without the bandwidth limitation, noise and added distortion that many associate with tube electronics.
PRODUCT REVIEWS:
February 23, 2023 – Michael Lavorgna’s Twittering Machines
ModWright Analog Bridge
ANALOG BRIDGE USES & SONIC BENEFITS:
1. Between digital or analog source(s) and preamp. – Any digital that is deemed thin, bright or lacking depth and body will definitely benefit. Even digital that is not bright, but lacks body, will benefit from tube body and weight.
2. Between preamp and amp. – An all SS system that customer feels is lacking in body, depth or warmth. Perhaps system is very resolving but uninvolving. The Analog Bridge will bring 3-dimensionality and broad soundstage to the system.
3. Between source and amp. – A simple system one or two sources (with integral volume control) and amp is ideal. It adds the sonic benefits of tubes while keeping the system simple. Very low output impedance means it will drive ANY amp.
4. Between passive attenuator and amp. – Same as above, source(s) – passive pre/attenuator – Analog Bridge – Amp. Analog bridge provides necessary buffering not provided by a passive.
Technical
1. INPUTS: (2) pair RCA – Optional (1) pair XLR with add cost balanced option. – Both RCA and XLR operation will sound the same. XLR option includes transformer coupling in and out (four Lundahl transformers) to insure fully balanced operation in and out.
2. OUTPUTS: (2) pair RCA – Optional (1) pair XLR with add cost balanced option. – While the sound of the Analog Bridge will be same via RCA or XLR inputs, a fully balanced system will sound best if fed balanced into the Analog Bridge. Also, if long cable runs are used, balanced cables WILL reduce overall noise and improve performance.
3. SWITCHES: Left to right – Power – Mute — Input (1 or 2) – Tube Select (6922 or 6SN7). Rear toggle selects balanced or RCA operation if balanced option installed. – Toggle on rear to select between RCA or XLR in to out. Only RCA in-out or XLR in-out operation, not RCA in and XLR out, etc.
4. GAIN: Unity. – It gives a significantly cleaner and undistorted signal.
5. NOISE: -105dB (unweighted) – Very quiet and will not introduce noise into the system.
6. FREQUENCY RESPONSE: (20Hz – 150Khz(-1dB)) – Considering that most digital gear is filtered at 60Khz – 100Khz, the Analog Bridge will NOT limit bandwidth.
7. THD: < .005% – Lower distortion is always the goal. Tubes will always produce their characteristic strengths of tone, depth, and body.
8. OUTPUT IMPEDENCE: < 20 ohm. – This allows the Analog Bridge to drive any preamp or amp with input impedance as low as 2K – 5K! Characteristic input impedance for most amps and preamps is 10K – 100K. Some SS gear has low input impedance, but the Analog Bridge will have no problem.
9. DIMENSIONS: 10.5“W x 3.5“H x 14.5“D.
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